use std::collections::HashMap;
use chrono::{DateTime, Utc};
use serde::{Deserialize, Serialize};
use crate::audit::interpretation::Interpretation;
use crate::audit::report::{AuditReport, PerformanceResults, ViewportScores};
use crate::audit::scoring::{AccessibilityScorer, PrincipleCoverage};
use crate::cli::WcagLevel;
use crate::dark_mode::DarkModeAnalysis;
use crate::mobile::MobileFriendliness;
use crate::security::SecurityAnalysis;
use crate::seo::SeoAnalysis;
use crate::taxonomy::{ReportVisibility, RuleLookup, Scaling, Severity};
use crate::wcag::WcagResults;
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct NormalizedReport {
pub url: String,
pub wcag_level: WcagLevel,
pub timestamp: DateTime<Utc>,
pub duration_ms: u64,
pub nodes_analyzed: usize,
pub score: u32,
pub grade: String,
pub certificate: String,
pub findings: Vec<NormalizedFinding>,
pub severity_counts: SeverityCounts,
#[serde(default)]
pub occurrence_counts: SeverityCounts,
#[serde(default, skip_serializing_if = "Vec::is_empty")]
pub accessibility_assessments: Vec<AccessibilityAssessment>,
#[serde(default, skip_serializing_if = "Vec::is_empty")]
pub rule_outcomes: Vec<crate::wcag::RuleOutcome>,
#[serde(default)]
pub execution: crate::audit::AuditExecution,
pub module_scores: Vec<ModuleScoreEntry>,
pub overall_score: u32,
#[serde(default, skip_serializing_if = "Vec::is_empty")]
pub accessibility_subcategory_scores: Vec<SubcategoryScoreEntry>,
#[serde(default, skip_serializing_if = "Vec::is_empty")]
pub security_category_scores: Vec<SecurityCategoryScoreEntry>,
pub risk: RiskAssessment,
#[serde(default)]
pub principle_coverage: PrincipleCoverage,
#[serde(default, skip_serializing_if = "Vec::is_empty")]
pub audit_flags: Vec<AuditFlag>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub consent_privacy: Option<crate::audit::ConsentPrivacySnapshot>,
#[serde(default)]
pub has_screenshots: bool,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub viewport_scores: Option<ViewportScores>,
pub score_calculation_method: String,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub score_breakdown: Option<ScoreBreakdown>,
#[serde(default, skip_serializing_if = "Vec::is_empty")]
pub interactive_findings: Vec<InteractiveFinding>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub accessibility_journey: Option<AccessibilityJourney>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub screen_reader: Option<crate::screen_reader::ScreenReaderSummary>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub interpretation: Option<Interpretation>,
}
pub struct AuditContext<'a> {
pub normalized: NormalizedReport,
pub raw_dual_viewport: Option<&'a crate::audit::report::DualViewportResults>,
pub raw_performance: Option<&'a PerformanceResults>,
pub raw_performance_desktop: Option<&'a PerformanceResults>,
pub raw_seo: Option<&'a SeoAnalysis>,
pub raw_security: Option<&'a SecurityAnalysis>,
pub raw_html_conform: Option<&'a crate::html_conform::HtmlConformAnalysis>,
pub raw_mobile: Option<&'a MobileFriendliness>,
pub raw_ux: Option<&'a crate::ux::UxAnalysis>,
pub raw_journey: Option<&'a crate::journey::JourneyAnalysis>,
pub raw_dark_mode: Option<&'a DarkModeAnalysis>,
pub raw_design_quality: Option<&'a crate::design_quality::DesignQualityAnalysis>,
pub raw_ai_transparency: Option<&'a crate::ai_transparency::AiTransparencyAnalysis>,
pub raw_network_dns: Option<&'a crate::network::dns::NetworkDnsAnalysis>,
pub raw_source_quality: Option<&'a crate::source_quality::SourceQualityAnalysis>,
pub raw_ai_visibility: Option<&'a crate::ai_visibility::AiVisibilityAnalysis>,
pub raw_tech_stack: Option<&'a crate::tech_stack::TechStackAnalysis>,
pub raw_content_visibility: Option<&'a crate::content_visibility::ContentVisibilityAnalysis>,
pub raw_wcag: &'a WcagResults,
pub raw_patterns: Option<&'a crate::patterns::PatternAnalysis>,
pub raw_throttled_performance: &'a [crate::audit::report::ThrottledPerfResult],
pub raw_best_practices: Option<&'a crate::best_practices::BestPracticesAnalysis>,
pub raw_commerce: Option<&'a crate::commerce::CommerceAnalysis>,
}
#[derive(Debug, Clone, Default, Serialize, Deserialize)]
pub struct SeverityCounts {
pub critical: usize,
pub high: usize,
pub medium: usize,
pub low: usize,
pub total: usize,
}
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct AccessibilityAssessment {
pub kind: String,
pub rule_id: String,
pub wcag_criterion: String,
pub severity: Severity,
pub message: String,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub fix_suggestion: Option<String>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub selector: Option<String>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub viewport: Option<String>,
#[serde(default, skip_serializing_if = "Vec::is_empty")]
pub evidence: Vec<crate::wcag::ViolationEvidence>,
}
pub(crate) fn normalize_assessments(results: &WcagResults) -> Vec<AccessibilityAssessment> {
let sources = [
("warning", results.warnings.as_slice()),
("manual_review", results.not_testables.as_slice()),
("positive", results.positives.as_slice()),
];
sources
.into_iter()
.flat_map(|(kind, findings)| {
findings.iter().map(move |finding| AccessibilityAssessment {
kind: kind.to_string(),
rule_id: finding
.rule_id
.clone()
.unwrap_or_else(|| finding.rule.clone()),
wcag_criterion: finding.rule.clone(),
severity: finding.severity,
message: finding.message.clone(),
fix_suggestion: finding.fix_suggestion.clone(),
selector: finding.selector.clone(),
viewport: finding
.tags
.iter()
.find(|tag| {
matches!(
tag.as_str(),
"desktop-only" | "mobile-only" | "both-viewports"
)
})
.cloned(),
evidence: finding.evidence.clone(),
})
})
.collect()
}
fn default_finding_category() -> String {
"wcag".to_string()
}
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct NormalizedFinding {
#[serde(default = "default_finding_category")]
pub category: String,
pub rule_id: String,
pub wcag_criterion: String,
pub axe_id: Option<String>,
pub wcag_level: String,
pub dimension: String,
pub subcategory: String,
pub issue_class: String,
#[serde(skip)]
pub dimension_kind: crate::taxonomy::Dimension,
#[serde(skip)]
pub subcategory_kind: crate::taxonomy::Subcategory,
#[serde(skip)]
pub issue_class_kind: crate::taxonomy::IssueClass,
pub severity: Severity,
#[serde(default, skip_serializing_if = "String::is_empty")]
pub user_impact: String,
#[serde(default, skip_serializing_if = "String::is_empty")]
pub technical_impact: String,
pub score_impact: ScoreImpactData,
#[serde(skip)]
pub report_visibility: ReportVisibilityData,
pub aggregation_key: String,
pub title: String,
pub description: String,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub help_url: Option<String>,
pub occurrence_count: usize,
pub priority_score: f32,
#[serde(default, skip_serializing_if = "String::is_empty")]
pub confidence: String,
#[serde(default, skip_serializing_if = "String::is_empty")]
pub false_positive_risk: String,
#[serde(default, skip_serializing_if = "String::is_empty")]
pub verification: String,
#[serde(default, skip_serializing_if = "String::is_empty")]
pub complexity: String,
#[serde(default, skip_serializing_if = "String::is_empty")]
pub complexity_reason: String,
#[serde(default)]
pub complexity_kind: ComplexityKind,
#[serde(default, skip_serializing_if = "String::is_empty")]
pub expected_impact: String,
#[serde(default)]
pub expected_impact_kind: ExpectedImpactKind,
#[serde(default, skip_serializing_if = "String::is_empty")]
pub bfsg_relevance: String,
#[serde(default, skip_serializing_if = "String::is_empty")]
pub remediation_priority: String,
pub occurrences: Vec<OccurrenceDetail>,
}
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ScoreImpactData {
pub base_penalty: f32,
pub max_penalty: f32,
pub scaling: String,
}
#[derive(Debug, Clone, Copy, Serialize, Deserialize)]
pub struct ReportVisibilityData {
pub executive: bool,
pub standard: bool,
pub technical: bool,
}
impl From<&ReportVisibility> for ReportVisibilityData {
fn from(rv: &ReportVisibility) -> Self {
Self {
executive: rv.executive,
standard: rv.standard,
technical: rv.technical,
}
}
}
impl Default for ReportVisibilityData {
fn default() -> Self {
Self {
executive: true,
standard: true,
technical: true,
}
}
}
#[derive(Debug, Clone, Default, Serialize, Deserialize)]
pub struct OccurrenceDetail {
pub node_id: String,
pub message: String,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub selector: Option<String>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub fix_suggestion: Option<String>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub html_snippet: Option<String>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub suggested_code: Option<String>,
#[serde(default, skip_serializing_if = "Vec::is_empty")]
pub tags: Vec<String>,
#[serde(default, skip_serializing_if = "Vec::is_empty")]
pub evidence: Vec<crate::wcag::ViolationEvidence>,
#[serde(skip)]
pub evidence_screenshot: Option<Vec<u8>>,
#[serde(skip)]
pub evidence_viewport: Option<&'static str>,
}
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ModuleScoreEntry {
pub name: String,
pub score: u32,
pub grade: String,
pub weight_pct: u32,
pub contributes_to_overall: bool,
pub measurement_type: String,
}
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct SubcategoryScoreEntry {
pub name: String,
#[serde(skip)]
pub subcategory_kind: crate::taxonomy::Subcategory,
pub score: u32,
}
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct SecurityCategoryScoreEntry {
pub name: String,
#[serde(skip)]
pub category_kind: crate::security::SecurityCategory,
pub score: u32,
}
#[derive(
Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize, Default,
)]
#[serde(rename_all = "lowercase")]
pub enum RiskLevel {
#[default]
Low,
Medium,
High,
Critical,
}
impl std::fmt::Display for RiskLevel {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match self {
RiskLevel::Low => write!(f, "Gering"),
RiskLevel::Medium => write!(f, "Mittel"),
RiskLevel::High => write!(f, "Hoch"),
RiskLevel::Critical => write!(f, "Kritisch"),
}
}
}
impl RiskLevel {
pub fn label_localized(&self, i18n: &crate::i18n::I18n) -> String {
let key = match self {
RiskLevel::Low => "risk-level-low",
RiskLevel::Medium => "risk-level-medium",
RiskLevel::High => "risk-level-high",
RiskLevel::Critical => "risk-level-critical",
};
i18n.t(key)
}
}
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct RiskAssessment {
pub level: RiskLevel,
pub score: u32,
pub threshold: u32,
pub driven_by: String,
pub critical_issues: usize,
pub high_issues: usize,
pub legal_flags: usize,
pub blocking_issues: usize,
pub interactive_critical_issues: usize,
#[serde(default)]
pub interactive_high_issues: usize,
pub summary: String,
}
impl RiskAssessment {
pub fn summary_for(&self, locale: &str) -> String {
if locale != "en" {
return self.summary.clone();
}
match self.level {
RiskLevel::Critical if self.legal_flags >= 3 => format!(
"Critical risk: {} WCAG Level A violations with legal relevance (BFSG). {} blocking issues on interactive controls.",
self.legal_flags, self.blocking_issues
),
RiskLevel::Critical => format!(
"Critical risk: {} critical violations on interactive controls and content.",
self.critical_issues
),
RiskLevel::High => format!(
"High risk: {} critical and {} severe issues. Users are actively excluded.",
self.critical_issues, self.high_issues
),
RiskLevel::Medium => {
if self.interactive_critical_issues > 0 {
format!(
"Medium risk: {} critical interactive findings detected.",
self.interactive_critical_issues
)
} else if self.interactive_high_issues > 0 {
format!(
"Medium risk: {} severe interactive findings detected.",
self.interactive_high_issues
)
} else {
format!(
"Medium risk: {} severe issues detected. Limitations for certain user groups.",
self.high_issues + self.critical_issues
)
}
}
RiskLevel::Low => {
let notable = self.interactive_high_issues + self.interactive_critical_issues;
if notable > 0 {
format!(
"Low risk: no critical violations — keyboard journey has {} requiring manual review.",
if notable == 1 { "1 notable finding".to_string() } else { format!("{notable} notable findings") }
)
} else {
"Low risk: no critical violations — improvement potential remains.".to_string()
}
}
}
}
}
fn gate_certificate_by_risk(
certificate: String,
risk_level: &RiskLevel,
legal_flags: usize,
blocking_issues: usize,
) -> String {
if matches!(risk_level, RiskLevel::Critical) {
return "NICHT BESTANDEN".to_string();
}
let is_positive = matches!(
certificate.as_str(),
"AUSBAUFÄHIG" | "STABIL" | "GUT" | "SEHR GUT"
);
let does_not_pass =
matches!(risk_level, RiskLevel::High) || legal_flags > 0 || blocking_issues > 0;
if is_positive && does_not_pass {
return "EINGESCHRÄNKT".to_string();
}
certificate
}
fn viewport_score_calculation_note() -> String {
"accessibility_score is the 70% mobile / 30% desktop blend of the displayed \
viewport accessibility scores. viewport_scores.weighted_overall blends the \
viewport module scores before security; overall_score is the canonical final \
score after the optional security blend."
.to_string()
}
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ScoreBreakdown {
pub calculation_note: String,
pub desktop_weight_pct: u32,
pub mobile_weight_pct: u32,
pub desktop_accessibility: u32,
pub mobile_accessibility: u32,
pub viewport_blended_accessibility: u32,
pub desktop_overall: u32,
pub mobile_overall: u32,
pub viewport_blended_overall: u32,
pub viewport_blend_weight_pct: u32,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub security_score: Option<u32>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub security_weight_pct: Option<u32>,
}
#[derive(Debug, Clone, Default, Serialize, Deserialize)]
pub struct AccessibilityJourney {
#[serde(default)]
pub execution: JourneyExecution,
#[serde(default, skip_serializing_if = "Vec::is_empty")]
pub traces: Vec<JourneyTrace>,
#[serde(default, skip_serializing_if = "Vec::is_empty")]
pub focus_evidence: Vec<crate::accessibility::FocusSnapshot>,
}
#[derive(Debug, Clone, Default, Serialize, Deserialize)]
pub struct JourneyExecution {
pub mode: String,
pub budget_ms: u64,
#[serde(default)]
pub candidates_detected: usize,
#[serde(default)]
pub attempted: usize,
#[serde(default)]
pub completed: usize,
#[serde(default)]
pub failed: usize,
#[serde(default)]
pub skipped: usize,
#[serde(default)]
pub budget_exhausted: bool,
#[serde(default, skip_serializing_if = "Vec::is_empty")]
pub runs: Vec<JourneyRun>,
}
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct JourneyRun {
pub journey: String,
pub status: crate::audit::ExecutionStatus,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub reason_code: Option<String>,
}
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct JourneyTrace {
pub journey: String,
pub steps: Vec<JourneyStep>,
}
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct JourneyStep {
pub action: String,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub target: Option<String>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub focus: Option<String>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub result: Option<String>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub snapshot_label: Option<String>,
}
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct InteractiveFinding {
pub category: String,
pub kind: InteractiveFindingKind,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub maps_to_finding: Option<String>,
pub severity: Severity,
pub journey: String,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub before_snapshot_label: Option<String>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub after_snapshot_label: Option<String>,
pub message: String,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub fix_suggestion: Option<String>,
#[serde(default)]
pub values: InteractiveFindingValues,
}
impl InteractiveFinding {
#[allow(clippy::too_many_arguments)]
pub fn new(
category: &str,
kind: InteractiveFindingKind,
maps_to_finding: Option<String>,
severity: Severity,
journey: String,
before_snapshot_label: Option<String>,
after_snapshot_label: Option<String>,
values: InteractiveFindingValues,
) -> Self {
let (message, fix_suggestion) = interactive_finding_text(kind, &values, true);
InteractiveFinding {
category: category.to_string(),
kind,
maps_to_finding,
severity,
journey,
before_snapshot_label,
after_snapshot_label,
message,
fix_suggestion,
values,
}
}
}
#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
pub enum InteractiveFindingKind {
HiddenFocusableAriaHidden,
HiddenFocusableInert,
HiddenFocusableStyle,
FocusIndicatorNotDetected,
TabOrderBackwardJumps,
FocusTrapNotEntered,
FocusTrapBackgroundNotHidden,
FocusTrapEscaped,
FocusTrapEscapeNotClosing,
FocusRestorationLostToBody,
MenuNotOpened,
MenuFocusNotMoved,
MenuEscapeNotClosing,
TabsSelectionNotMoved,
TabsFocusNotOnTab,
DisclosureNotOpened,
DisclosureNotClosed,
SpaNoAnnouncementSignal,
SpaTitleUnchanged,
SpaFocusNotMoved,
SkipLinkFocusNotMoved,
FormErrorSilentFailure,
FormErrorInvalidWithoutLiveRegion,
FormErrorUnlinkedFields,
FormErrorFocusNotManaged,
FormErrorLiveRegionLateInsertion,
AddToCartNoStatusAnnouncement,
AddToCartNoFeedbackDetected,
QuantityStepperKeyboardInoperable,
QuantityStepperValueNotExposed,
LinkTextGeneric,
LinkTextDuplicate,
HeadingMissingH1,
HeadingMultipleH1,
HeadingLevelSkip,
LandmarkMissingMain,
LandmarkNavWithoutLabels,
LandmarkDuplicateUnique,
MediaControlsMissingName,
MediaControlsNotReachable,
}
#[derive(Debug, Clone, Default, Serialize, Deserialize)]
pub struct InteractiveFindingValues {
#[serde(default, skip_serializing_if = "Option::is_none")]
pub selector: Option<String>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub count: Option<u32>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub examples: Option<String>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub truncated: Option<bool>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub title_before: Option<String>,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub role: Option<String>,
}
pub fn interactive_finding_text(
kind: InteractiveFindingKind,
values: &InteractiveFindingValues,
en: bool,
) -> (String, Option<String>) {
use InteractiveFindingKind::*;
let selector = values.selector.as_deref().unwrap_or("");
let count = values.count.unwrap_or(0);
let examples = values.examples.as_deref().unwrap_or("");
let truncated = values.truncated.unwrap_or(false);
let title_before = values.title_before.as_deref().unwrap_or("");
let role = values.role.as_deref().unwrap_or("");
let (message, fix): (String, Option<String>) = match kind {
HiddenFocusableAriaHidden => (
if en {
format!(
"Keyboard focus lands on an element inside an aria-hidden \
region ({selector}). Screen reader users reach an element \
that is hidden from the accessibility tree."
)
} else {
format!(
"Der Tastaturfokus landet auf einem Element innerhalb eines \
aria-hidden-Bereichs ({selector}). Screenreader-Nutzer erreichen \
ein Element, das im Accessibility Tree verborgen ist."
)
},
Some(if en {
"Remove the element from the aria-hidden region or set \
tabindex=\"-1\" on it."
.to_string()
} else {
"Element aus dem aria-hidden-Bereich entfernen oder tabindex=\"-1\" \
darauf setzen."
.to_string()
}),
),
HiddenFocusableInert => (
if en {
format!(
"Keyboard focus lands on an element inside an inert \
region ({selector}). Inert regions should not be \
reachable by keyboard."
)
} else {
format!(
"Der Tastaturfokus landet auf einem Element innerhalb eines \
inert-Bereichs ({selector}). Inert-Bereiche sollten per Tastatur \
nicht erreichbar sein."
)
},
Some(if en {
"Remove the element from the inert region or \
correct the tabindex/focus chain."
.to_string()
} else {
"Element aus dem inert-Bereich entfernen oder die tabindex-/Fokuskette \
korrigieren."
.to_string()
}),
),
HiddenFocusableStyle => (
if en {
format!(
"Keyboard focus lands on a visually hidden element \
({selector}: display:none, visibility:hidden, or \
opacity:0). Keyboard users lose orientation."
)
} else {
format!(
"Der Tastaturfokus landet auf einem visuell versteckten Element \
({selector}: display:none, visibility:hidden oder opacity:0). \
Tastaturnutzer verlieren die Orientierung."
)
},
Some(if en {
"Remove the element from the tab sequence (tabindex=\"-1\") \
or make it visible before it receives focus."
.to_string()
} else {
"Element aus der Tab-Reihenfolge entfernen (tabindex=\"-1\") oder es \
sichtbar machen, bevor es fokussiert wird."
.to_string()
}),
),
FocusIndicatorNotDetected => (
if en {
format!(
"Element ({selector}) shows no visible focus indicator when focused \
(no outline, no box-shadow, no border change). \
Keyboard users lose orientation."
)
} else {
format!(
"Element ({selector}) zeigt im fokussierten Zustand keinen sichtbaren \
Fokusindikator (kein Outline, kein Box-Shadow, keine Rahmenänderung). \
Tastaturnutzer verlieren die Orientierung."
)
},
Some(if en {
"Add a CSS :focus-visible rule with a clear outline, \
box-shadow, or border change compared to the unfocused state."
.to_string()
} else {
"Eine CSS-:focus-visible-Regel mit deutlichem Outline, Box-Shadow oder \
Rahmenwechsel gegenüber dem unfokussierten Zustand ergänzen."
.to_string()
}),
),
TabOrderBackwardJumps => {
let suffix = if truncated { " (…)" } else { "" };
(
if en {
format!(
"Tab order deviates from DOM order: {count} backward {} \
observed. First affected elements: {examples}{suffix}. \
Keyboard users may not be able to follow the reading flow.",
if count == 1 { "jump" } else { "jumps" }
)
} else {
format!(
"Die Tab-Reihenfolge weicht von der DOM-Reihenfolge ab: {count} \
rückwärtige {} beobachtet. Zuerst betroffene Elemente: \
{examples}{suffix}. Tastaturnutzer können dem Lesefluss \
möglicherweise nicht folgen.",
if count == 1 { "Sprung" } else { "Sprünge" }
)
},
Some(if en {
"Avoid negative or high tabindex values. \
Arrange the reading/DOM order to match the visual order."
.to_string()
} else {
"Negative oder hohe tabindex-Werte vermeiden. Lese-/DOM-Reihenfolge \
an die visuelle Reihenfolge angleichen."
.to_string()
}),
)
}
FocusTrapNotEntered => (
if en {
"After opening modal, focus did not move inside the dialog. \
Keyboard users cannot interact with it."
.to_string()
} else {
"Nach dem Öffnen des Modals wechselt der Fokus nicht in den Dialog. \
Tastaturnutzer können nicht damit interagieren."
.to_string()
},
Some(if en {
"Move focus to the first focusable element inside the dialog when it opens, \
or to the dialog element itself (tabindex=\"-1\")."
.to_string()
} else {
"Beim Öffnen den Fokus auf das erste fokussierbare Element im Dialog setzen \
oder auf den Dialog selbst (tabindex=\"-1\")."
.to_string()
}),
),
FocusTrapBackgroundNotHidden => (
if en {
"Background content is not hidden from assistive technology when modal is open."
.to_string()
} else {
"Der Hintergrundinhalt ist bei geöffnetem Modal nicht vor assistiven \
Technologien verborgen."
.to_string()
},
Some(if en {
"Set aria-hidden=\"true\" on the application root when a modal is open, \
or use the inert attribute."
.to_string()
} else {
"aria-hidden=\"true\" auf dem Anwendungs-Root setzen, solange das Modal \
geöffnet ist, oder das inert-Attribut verwenden."
.to_string()
}),
),
FocusTrapEscaped => (
if en {
"Focus is not trapped inside the modal dialog. \
Keyboard users can navigate to background content."
.to_string()
} else {
"Der Fokus ist nicht im Modal-Dialog eingeschlossen. Tastaturnutzer können \
zum Hintergrundinhalt navigieren."
.to_string()
},
Some(if en {
"Intercept Tab and Shift+Tab inside the dialog to cycle focus among \
dialog descendants only."
.to_string()
} else {
"Tab und Umschalt+Tab im Dialog abfangen, sodass der Fokus nur zwischen den \
Dialog-Kindelementen wechselt."
.to_string()
}),
),
FocusTrapEscapeNotClosing => (
if en {
"Escape key does not close the modal. Keyboard users cannot dismiss it.".to_string()
} else {
"Die Escape-Taste schließt das Modal nicht. Tastaturnutzer können es nicht \
schließen."
.to_string()
},
Some(if en {
"Add a keydown handler on the dialog or document that calls close() \
or hides the dialog when Escape is pressed."
.to_string()
} else {
"Einen keydown-Handler auf dem Dialog oder Dokument ergänzen, der bei Escape \
close() aufruft oder den Dialog verbirgt."
.to_string()
}),
),
FocusRestorationLostToBody => (
if en {
"After closing the modal, focus returned to body instead of the trigger. \
Keyboard users lose their place on the page."
.to_string()
} else {
"Nach dem Schließen des Modals kehrt der Fokus zu body statt zum \
Auslöser-Element zurück. Tastaturnutzer verlieren ihre Position auf der \
Seite."
.to_string()
},
Some(if en {
"Store a reference to the trigger element before opening the dialog and \
call trigger.focus() when the dialog closes."
.to_string()
} else {
"Vor dem Öffnen des Dialogs eine Referenz auf das Auslöser-Element speichern \
und beim Schließen trigger.focus() aufrufen."
.to_string()
}),
),
MenuNotOpened => (
if en {
"Menu trigger was clicked but menu did not open. \
Keyboard users cannot access menu items."
.to_string()
} else {
"Der Menü-Auslöser wurde geklickt, aber das Menü öffnet sich nicht. \
Tastaturnutzer erreichen die Menüpunkte nicht."
.to_string()
},
Some(if en {
"Set aria-expanded=\"true\" on the trigger and make the menu items visible \
when the trigger is activated."
.to_string()
} else {
"aria-expanded=\"true\" auf dem Auslöser setzen und die Menüpunkte sichtbar \
machen, sobald der Auslöser aktiviert wird."
.to_string()
}),
),
MenuFocusNotMoved => (
if en {
"After opening menu, focus did not move to menu items. \
Keyboard users may not know the menu opened."
.to_string()
} else {
"Nach dem Öffnen des Menüs wechselt der Fokus nicht zu den Menüpunkten. \
Tastaturnutzer bemerken das geöffnete Menü möglicherweise nicht."
.to_string()
},
Some(if en {
"Move focus to the first menu item after the menu opens.".to_string()
} else {
"Den Fokus nach dem Öffnen auf den ersten Menüpunkt setzen.".to_string()
}),
),
MenuEscapeNotClosing => (
if en {
"Escape key does not close the menu.".to_string()
} else {
"Die Escape-Taste schließt das Menü nicht.".to_string()
},
Some(if en {
"Add a keydown handler that closes the menu and returns focus to the trigger \
when Escape is pressed."
.to_string()
} else {
"Einen keydown-Handler ergänzen, der das Menü bei Escape schließt und den \
Fokus zum Auslöser zurückgibt."
.to_string()
}),
),
TabsSelectionNotMoved => (
if en {
"Arrow key navigation does not move selection between tabs. \
Keyboard users cannot navigate the tab list."
.to_string()
} else {
"Die Pfeiltasten-Navigation verschiebt die Auswahl nicht zwischen den Tabs. \
Tastaturnutzer können die Tab-Liste nicht bedienen."
.to_string()
},
Some(if en {
"Implement the roving tabindex pattern: ArrowRight moves focus and \
aria-selected to the next tab."
.to_string()
} else {
"Das Roving-Tabindex-Muster implementieren: Pfeil-rechts verschiebt Fokus \
und aria-selected zum nächsten Tab."
.to_string()
}),
),
TabsFocusNotOnTab => (
if en {
"After pressing ArrowRight in the tab list, focus is not on a tab element."
.to_string()
} else {
"Nach Pfeil-rechts in der Tab-Liste steht der Fokus nicht auf einem \
Tab-Element."
.to_string()
},
Some(if en {
"Ensure arrow key navigation also moves focus (not just selection) \
to the next tab in the roving tabindex pattern."
.to_string()
} else {
"Sicherstellen, dass die Pfeiltasten-Navigation im Roving-Tabindex-Muster \
auch den Fokus (nicht nur die Auswahl) zum nächsten Tab verschiebt."
.to_string()
}),
),
DisclosureNotOpened => (
if en {
"Disclosure button was clicked but aria-expanded did not change. \
State transition is not announced to screen readers."
.to_string()
} else {
"Der Disclosure-Button wurde geklickt, aber aria-expanded ändert sich nicht. \
Der Zustandswechsel wird Screenreadern nicht angekündigt."
.to_string()
},
Some(if en {
"Toggle aria-expanded=\"true|false\" on the button in the click handler."
.to_string()
} else {
"aria-expanded=\"true|false\" im Klick-Handler des Buttons umschalten.".to_string()
}),
),
DisclosureNotClosed => (
if en {
"Disclosure does not toggle closed on second activation.".to_string()
} else {
"Die Disclosure schließt sich bei erneuter Aktivierung nicht.".to_string()
},
Some(if en {
"Ensure the click handler toggles aria-expanded between true and false.".to_string()
} else {
"Sicherstellen, dass der Klick-Handler aria-expanded zwischen true und false \
umschaltet."
.to_string()
}),
),
SpaNoAnnouncementSignal => (
if en {
format!(
"After SPA navigation neither the page title \
(before: {title_before:?}) nor the H1 heading changed, and focus \
remained in the same place. Screen readers will not announce \
the new content."
)
} else {
format!(
"Nach der SPA-Navigation hat sich weder der Seitentitel \
(vorher: {title_before:?}) noch die H1-Überschrift geändert, und der \
Fokus blieb an derselben Stelle. Screenreader kündigen den neuen Inhalt \
nicht an."
)
},
Some(if en {
"After each client-side navigation: (1) update document.title, \
(2) move focus to the <main> element or the new H1 heading, \
(3) alternatively populate an aria-live region with the new page name."
.to_string()
} else {
"Nach jeder clientseitigen Navigation: (1) document.title aktualisieren, \
(2) den Fokus auf das <main>-Element oder die neue H1-Überschrift setzen, \
(3) alternativ eine aria-live-Region mit dem neuen Seitennamen befüllen."
.to_string()
}),
),
SpaTitleUnchanged => (
if en {
format!(
"After SPA navigation document.title remains unchanged ({title_before:?}). \
Screen readers often primarily announce page transitions via the title."
)
} else {
format!(
"Nach der SPA-Navigation bleibt document.title unverändert \
({title_before:?}). Screenreader kündigen Seitenwechsel häufig primär \
über den Titel an."
)
},
Some(if en {
"Update document.title to the new page name after every client-side navigation."
.to_string()
} else {
"document.title nach jeder clientseitigen Navigation auf den neuen Seitennamen \
aktualisieren."
.to_string()
}),
),
SpaFocusNotMoved => (
if en {
"After SPA navigation focus is not moved to the new main area. \
Keyboard users must manually navigate to the new content."
.to_string()
} else {
"Nach der SPA-Navigation wird der Fokus nicht in den neuen Hauptbereich \
verschoben. Tastaturnutzer müssen manuell zum neuen Inhalt navigieren."
.to_string()
},
Some(if en {
"After navigation, move focus to the <main> element or the first \
H1 heading of the new content."
.to_string()
} else {
"Nach der Navigation den Fokus auf das <main>-Element oder die erste \
H1-Überschrift des neuen Inhalts setzen."
.to_string()
}),
),
SkipLinkFocusNotMoved => (
if en {
"Skip link is present but does not move focus to the target. \
Keyboard users cannot bypass navigation."
.to_string()
} else {
"Der Skip-Link ist vorhanden, verschiebt den Fokus aber nicht zum Ziel. \
Tastaturnutzer können die Navigation nicht überspringen."
.to_string()
},
Some(if en {
"Ensure the skip link target has tabindex=\"-1\" and receives focus via \
an anchor link, or explicitly call target.focus() after navigation."
.to_string()
} else {
"Sicherstellen, dass das Skip-Link-Ziel tabindex=\"-1\" besitzt und per \
Anker-Link fokussiert wird, oder explizit target.focus() nach der \
Navigation aufrufen."
.to_string()
}),
),
FormErrorSilentFailure => (
if en {
"Form errors are not announced via a live region (role=\"alert\" or \
aria-live) and aria-invalid is not set. \
Screen reader users receive no feedback when a required field \
is left empty."
.to_string()
} else {
"Formularfehler werden nicht über eine Live-Region (role=\"alert\" oder \
aria-live) angekündigt, und aria-invalid wird nicht gesetzt. \
Screenreader-Nutzer erhalten kein Feedback, wenn ein Pflichtfeld leer \
bleibt."
.to_string()
},
Some(if en {
"Output error messages inside a role=\"alert\" element and set \
aria-invalid=\"true\" on each invalid field."
.to_string()
} else {
"Fehlermeldungen in einem role=\"alert\"-Element ausgeben und \
aria-invalid=\"true\" auf jedem ungültigen Feld setzen."
.to_string()
}),
),
FormErrorInvalidWithoutLiveRegion => (
if en {
"aria-invalid is set after submission, but no live region \
(role=\"alert\" or aria-live) announces the error. \
Screen reader users will only notice the error state when they \
explicitly navigate back to the field."
.to_string()
} else {
"aria-invalid wird nach dem Absenden gesetzt, aber keine Live-Region \
(role=\"alert\" oder aria-live) kündigt den Fehler an. Screenreader-Nutzer \
bemerken den Fehlerzustand nur, wenn sie gezielt zum Feld zurücknavigieren."
.to_string()
},
Some(if en {
"Add a role=\"alert\" container that outputs the error message \
after form submission."
.to_string()
} else {
"Einen role=\"alert\"-Container ergänzen, der die Fehlermeldung nach dem \
Absenden ausgibt."
.to_string()
}),
),
FormErrorUnlinkedFields => (
if en {
format!(
"{count} {} with aria-invalid=\"true\" are not linked to their error \
message via aria-describedby or aria-errormessage. \
Screen reader users hear the error state but cannot associate it with \
the field.",
if count == 1 { "field" } else { "fields" }
)
} else {
format!(
"{count} {} mit aria-invalid=\"true\" sind nicht per aria-describedby \
oder aria-errormessage mit ihrer Fehlermeldung verknüpft. \
Screenreader-Nutzer hören den Fehlerzustand, können ihn aber nicht dem \
Feld zuordnen.",
if count == 1 { "Feld" } else { "Felder" }
)
},
Some(if en {
"Add aria-describedby=\"error-message-id\" on each field with \
aria-invalid=\"true\"."
.to_string()
} else {
"aria-describedby=\"error-message-id\" auf jedem Feld mit \
aria-invalid=\"true\" ergänzen."
.to_string()
}),
),
FormErrorFocusNotManaged => (
if en {
"An error was announced after submission, but keyboard focus stayed on \
the document body instead of moving to the first invalid field or an \
error summary. Screen reader and keyboard users are not led to the \
error and must search for it manually."
.to_string()
} else {
"Nach dem Absenden wurde ein Fehler angekündigt, der Tastaturfokus blieb \
jedoch auf dem Dokument-Body, statt zum ersten ungültigen Feld oder einer \
Fehlerzusammenfassung zu wechseln. Screenreader- und Tastaturnutzer werden \
nicht zum Fehler geführt und müssen ihn manuell suchen."
.to_string()
},
Some(if en {
"Move focus to the first invalid field or to an error summary \
(e.g. role=\"alert\") after a failed submission."
.to_string()
} else {
"Fokus nach einem fehlgeschlagenen Absenden zum ersten ungültigen Feld \
oder zu einer Fehlerzusammenfassung (z. B. role=\"alert\") bewegen."
.to_string()
}),
),
FormErrorLiveRegionLateInsertion => (
if en {
"The live region (role=\"alert\" or aria-live) announcing the error was not \
present on initial page load — it was only inserted into the DOM after form \
submission. Screen readers register live regions when the accessibility tree \
is first built; some browser/assistive-technology combinations do not reliably \
announce a live region that appears only after the page has already loaded."
.to_string()
} else {
"Die den Fehler ankündigende Live-Region (role=\"alert\" oder aria-live) war \
beim initialen Laden der Seite nicht vorhanden — sie wurde erst nach dem \
Absenden des Formulars ins DOM eingefügt. Screenreader registrieren \
Live-Regions beim initialen Aufbau des Accessibility Tree; manche \
Kombinationen aus Browser und Screenreader kündigen eine erst nachträglich \
eingefügte Live-Region nicht zuverlässig an."
.to_string()
},
Some(if en {
"Render the live-region container empty in the initial markup (e.g. \
<div role=\"status\"></div>) and only fill its text content on submission, \
instead of inserting the container itself after the interaction."
.to_string()
} else {
"Den Live-Region-Container bereits im initialen Markup leer rendern (z. B. \
<div role=\"status\"></div>) und nur den Textinhalt beim Absenden befüllen, \
statt den Container selbst erst nach der Interaktion einzufügen."
.to_string()
}),
),
AddToCartNoStatusAnnouncement => (
if en {
"Adding the item to the cart visibly changed the page (e.g. a cart \
counter), but no live region (role=\"status\"/\"alert\" or aria-live) \
announced it and focus did not move into a cart dialog. Screen reader \
users receive no confirmation that the item was added."
.to_string()
} else {
"Das Hinzufügen zum Warenkorb hat die Seite sichtbar verändert (z. B. \
einen Warenkorb-Zähler), aber keine Live-Region (role=\"status\"/\"alert\" \
oder aria-live) hat dies angekündigt, und der Fokus ist nicht in einen \
Warenkorb-Dialog gewechselt. Screenreader-Nutzer erhalten keine \
Bestätigung, dass der Artikel hinzugefügt wurde."
.to_string()
},
Some(if en {
"Announce the outcome via a role=\"status\" live region (e.g. \"Item \
added to cart\"), or move focus into the cart drawer/dialog when it \
opens."
.to_string()
} else {
"Das Ergebnis über eine role=\"status\"-Live-Region ankündigen (z. B. \
„Artikel zum Warenkorb hinzugefügt“), oder den Fokus beim Öffnen in den \
Warenkorb-Dialog verschieben."
.to_string()
}),
),
AddToCartNoFeedbackDetected => (
if en {
"Clicking the add-to-cart trigger produced no detectable change: no \
live-region announcement, no focus change into a dialog, and no \
recognizable cart-counter update. Manual review is needed to confirm \
whether the action succeeded and how it is communicated."
.to_string()
} else {
"Der Klick auf den Warenkorb-Button führte zu keiner erkennbaren \
Änderung: keine Live-Region-Ankündigung, kein Fokuswechsel in einen \
Dialog und keine erkennbare Warenkorb-Zähler-Aktualisierung. Eine \
manuelle Prüfung ist nötig, um zu bestätigen, ob die Aktion erfolgreich \
war und wie sie kommuniziert wird."
.to_string()
},
Some(if en {
"Verify manually that adding to cart succeeds and is announced (e.g. \
via a role=\"status\" live region or a focus-managed cart dialog)."
.to_string()
} else {
"Manuell prüfen, ob das Hinzufügen zum Warenkorb funktioniert und \
angekündigt wird (z. B. über eine role=\"status\"-Live-Region oder \
einen fokusverwalteten Warenkorb-Dialog)."
.to_string()
}),
),
QuantityStepperKeyboardInoperable => (
if en {
"The quantity control could not be operated by keyboard: it either \
could not receive focus, or its value did not change after pressing \
Arrow Up. Keyboard-only users cannot adjust the quantity."
.to_string()
} else {
"Das Mengenfeld ließ sich nicht per Tastatur bedienen: Es konnte entweder \
nicht fokussiert werden, oder sein Wert änderte sich nach Drücken von \
Pfeil-nach-oben nicht. Reine Tastaturnutzer können die Menge nicht \
anpassen."
.to_string()
},
Some(if en {
"Ensure the quantity control is a native <input type=\"number\"> or a \
fully keyboard-operable ARIA spinbutton (focusable, responds to Arrow \
Up/Down)."
.to_string()
} else {
"Sicherstellen, dass das Mengenfeld ein natives <input type=\"number\"> \
oder ein vollständig tastaturbedienbares ARIA-Spinbutton ist \
(fokussierbar, reagiert auf Pfeil-hoch/-runter)."
.to_string()
}),
),
QuantityStepperValueNotExposed => (
if en {
"Arrow Up changed the quantity value, but this custom (non-native) \
spinbutton widget did not update aria-valuenow to match. Screen reader \
users hear no change even though the value did change."
.to_string()
} else {
"Pfeil-nach-oben hat den Mengenwert geändert, aber dieses \
benutzerdefinierte (nicht native) Spinbutton-Widget hat aria-valuenow \
nicht entsprechend aktualisiert. Screenreader-Nutzer hören keine \
Änderung, obwohl sich der Wert geändert hat."
.to_string()
},
Some(if en {
"Update aria-valuenow (and ideally aria-valuetext) on the spinbutton \
element whenever its value changes."
.to_string()
} else {
"aria-valuenow (und idealerweise aria-valuetext) auf dem \
Spinbutton-Element bei jeder Wertänderung aktualisieren."
.to_string()
}),
),
LinkTextGeneric => (
if en {
format!(
"{count} {} carry generic or non-descriptive text \
({examples}). Without surrounding context they are hard to tell apart for \
screen reader users. Heuristic warning on WCAG 2.4.4 — whether the link \
purpose is clear from its context needs a human check.",
if count == 1 { "link" } else { "links" }
)
} else {
format!(
"{count} {} tragen generischen oder wenig aussagekräftigen Text \
({examples}). Ohne den umgebenden Kontext sind sie für \
Screenreader-Nutzer schwer unterscheidbar. Heuristische Warnung zu \
WCAG 2.4.4 — ob der Linkzweck aus dem Kontext hervorgeht, muss manuell \
geprüft werden.",
if count == 1 { "Link" } else { "Links" }
)
},
Some(if en {
"Write link text that is meaningful without the surrounding page context, \
e.g. 'Learn more about accessibility' instead of 'Learn more'."
.to_string()
} else {
"Linktext so formulieren, dass er auch ohne den umgebenden Seitenkontext \
verständlich ist, z. B. 'Mehr über Barrierefreiheit erfahren' statt \
'Mehr erfahren'."
.to_string()
}),
),
LinkTextDuplicate => (
if en {
format!(
"{count} {} appear 3 or more times on the page: {examples}. \
If they point to different targets, screen reader users cannot \
distinguish them.",
if count == 1 {
"link text"
} else {
"link texts"
}
)
} else {
format!(
"{count} {} kommen 3-mal oder häufiger auf der Seite vor: {examples}. \
Verweisen sie auf unterschiedliche Ziele, können Screenreader-Nutzer sie \
nicht unterscheiden.",
if count == 1 { "Linktext" } else { "Linktexte" }
)
},
Some(if en {
"Replace repeated link texts with unique wording or supplement the visible \
text with aria-label / aria-labelledby."
.to_string()
} else {
"Wiederholte Linktexte durch eindeutige Formulierungen ersetzen oder den \
sichtbaren Text durch aria-label / aria-labelledby ergänzen."
.to_string()
}),
),
HeadingMissingH1 => (
if en {
"The page has no H1 heading. Screen reader users cannot \
identify the main structure of the page without an H1."
.to_string()
} else {
"Die Seite hat keine H1-Überschrift. Ohne H1 können Screenreader-Nutzer die \
Hauptstruktur der Seite nicht erkennen."
.to_string()
},
Some(if en {
"Use exactly one H1 heading per page that describes the main content.".to_string()
} else {
"Genau eine H1-Überschrift pro Seite verwenden, die den Hauptinhalt \
beschreibt."
.to_string()
}),
),
HeadingMultipleH1 => (
if en {
format!(
"{count} H1 headings found. Multiple H1 elements make it harder for \
screen reader users to orient themselves."
)
} else {
format!(
"{count} H1-Überschriften gefunden. Mehrere H1-Elemente erschweren \
Screenreader-Nutzern die Orientierung."
)
},
Some(if en {
"Use only one H1 heading per page. Mark further top-level headings as H2."
.to_string()
} else {
"Nur eine H1-Überschrift pro Seite verwenden. Weitere Top-Level-Überschriften \
als H2 auszeichnen."
.to_string()
}),
),
HeadingLevelSkip => (
if en {
format!(
"Heading hierarchy skips levels ({examples}). Screen reader users may not \
be able to reliably parse the page structure."
)
} else {
format!(
"Die Heading-Hierarchie überspringt Ebenen ({examples}). \
Screenreader-Nutzer können die Seitenstruktur unter Umständen nicht \
zuverlässig erfassen."
)
},
Some(if en {
"Never skip heading levels. After H1 comes H2, after H2 comes H3, and so on."
.to_string()
} else {
"Heading-Ebenen nie überspringen. Nach H1 folgt H2, nach H2 folgt H3 und so \
weiter."
.to_string()
}),
),
LandmarkMissingMain => (
if en {
"No <main> landmark found. Screen reader users cannot \
jump directly to the main content."
.to_string()
} else {
"Kein <main>-Landmark gefunden. Screenreader-Nutzer können nicht direkt zum \
Hauptinhalt springen."
.to_string()
},
Some(if en {
"Wrap the main content in a <main> element or set role=\"main\" \
on the appropriate container."
.to_string()
} else {
"Den Hauptinhalt in ein <main>-Element einbetten oder role=\"main\" auf dem \
passenden Container setzen."
.to_string()
}),
),
LandmarkNavWithoutLabels => (
if en {
format!(
"{count} navigation landmarks without distinct labels. \
Screen reader users cannot tell which navigation covers which area."
)
} else {
format!(
"{count} Navigations-Landmarks ohne eindeutige Beschriftung. \
Screenreader-Nutzer können nicht unterscheiden, welche Navigation \
welchen Bereich abdeckt."
)
},
Some(if en {
"Label each <nav> region with an aria-label, \
e.g. aria-label=\"Main navigation\" and aria-label=\"Footer navigation\"."
.to_string()
} else {
"Jeden <nav>-Bereich mit aria-label beschriften, z. B. \
aria-label=\"Hauptnavigation\" und aria-label=\"Footer-Navigation\"."
.to_string()
}),
),
LandmarkDuplicateUnique => (
if en {
format!(
"Landmark role \"{role}\" appears {count}× on the page. \
This role should only occur once per page."
)
} else {
format!(
"Die Landmark-Rolle \"{role}\" kommt {count}-mal auf der Seite vor. \
Diese Rolle sollte nur einmal pro Seite vorkommen."
)
},
Some(if en {
format!(
"Use only one element with role=\"{role}\" (or the corresponding \
HTML element) per page."
)
} else {
format!(
"Nur ein Element mit role=\"{role}\" (oder dem entsprechenden \
HTML-Element) pro Seite verwenden."
)
}),
),
MediaControlsMissingName => (
if en {
format!(
"Native video player ({selector}) is reachable via keyboard but has no \
accessible name (no aria-label, aria-labelledby, or title). Screen reader \
users cannot identify which video the control refers to."
)
} else {
format!(
"Der native Video-Player ({selector}) ist per Tastatur erreichbar, hat aber \
keinen zugänglichen Namen (kein aria-label, aria-labelledby oder title). \
Screenreader-Nutzer können nicht erkennen, um welches Video es sich handelt."
)
},
Some(if en {
"Add an aria-label, aria-labelledby, or title attribute to the video element \
describing its content."
.to_string()
} else {
"Ein aria-label-, aria-labelledby- oder title-Attribut mit einer Beschreibung \
des Videoinhalts zum video-Element hinzufügen."
.to_string()
}),
),
MediaControlsNotReachable => {
let suffix = if truncated { " (…)" } else { "" };
let (de_adj, de_noun) = if count == 1 {
("natives", "Video-Element")
} else {
("native", "Video-Elemente")
};
(
if en {
format!(
"{count} native video {} with visible controls could not be reached \
via keyboard Tab navigation: {examples}{suffix}. Keyboard users may be \
unable to operate playback.",
if count == 1 { "element" } else { "elements" }
)
} else {
format!(
"{count} {de_adj} {de_noun} mit sichtbaren Steuerelementen waren beim \
Tastatur-Tab-Durchlauf nicht erreichbar: {examples}{suffix}. \
Tastaturnutzer können die Wiedergabe möglicherweise nicht bedienen."
)
},
Some(if en {
"Verify no earlier element traps focus and that the video element itself \
is not removed from the tab sequence (tabindex=\"-1\")."
.to_string()
} else {
"Prüfen, ob ein vorheriges Element den Fokus einfängt und ob das \
video-Element selbst nicht per tabindex=\"-1\" aus der Tab-Reihenfolge \
entfernt wurde."
.to_string()
}),
)
}
};
(message, fix)
}
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct AuditFlag {
pub kind: String,
pub related_rule: Option<String>,
pub source: String,
pub message: String,
}
const MAX_OCCURRENCES: usize = 5;
fn build_wcag_findings(violations: &[crate::wcag::Violation]) -> Vec<NormalizedFinding> {
let mut groups: HashMap<&str, Vec<&crate::wcag::Violation>> = HashMap::new();
for v in violations {
groups.entry(wcag_group_key(v)).or_default().push(v);
}
let findings: Vec<NormalizedFinding> = groups
.into_iter()
.map(|(rule_id, violations)| {
let first = violations[0];
let taxonomy_rule = RuleLookup::by_legacy_wcag_id(rule_id);
use crate::taxonomy::{Dimension, IssueClass, Subcategory};
let (
tax_id,
dimension_kind,
subcategory_kind,
issue_class_kind,
dimension,
subcategory,
issue_class,
user_impact,
technical_impact,
score_impact,
visibility,
) = if let Some(rule) = taxonomy_rule {
(
rule.id.to_string(),
rule.dimension,
rule.subcategory,
rule.issue_class,
rule.dimension.label(true).to_string(),
rule.subcategory.label(true).to_string(),
rule.issue_class.label(true).to_string(),
rule.user_impact_en.to_string(),
rule.technical_impact_en.to_string(),
ScoreImpactData {
base_penalty: rule.score_impact.base_penalty,
max_penalty: rule.score_impact.max_penalty,
scaling: match rule.score_impact.occurrence_scaling {
Scaling::Logarithmic => "logarithmic".to_string(),
Scaling::Linear => "linear".to_string(),
Scaling::Fixed => "fixed".to_string(),
},
},
ReportVisibilityData::from(&rule.report_visibility),
)
} else {
(
format!("unknown.{}", rule_id),
Dimension::Accessibility,
Subcategory::ContentAlternatives,
IssueClass::Missing,
"Accessibility".to_string(),
"Unknown".to_string(),
"Unknown".to_string(),
String::new(),
String::new(),
ScoreImpactData {
base_penalty: 0.0,
max_penalty: 0.0,
scaling: "unknown".to_string(),
},
ReportVisibilityData::default(),
)
};
let occurrence_count = violations.len();
let mut seen_selectors = std::collections::HashSet::new();
let mut occurrences: Vec<OccurrenceDetail> = violations
.iter()
.filter(|v| {
let key = v.selector.as_deref().unwrap_or(&v.node_id);
seen_selectors.insert(key.to_string())
})
.take(MAX_OCCURRENCES)
.map(|v| OccurrenceDetail {
node_id: v.node_id.clone(),
message: v.message.clone(),
selector: v.selector.clone(),
fix_suggestion: v.fix_suggestion.clone(),
html_snippet: v.html_snippet.clone(),
suggested_code: v.suggested_code.clone(),
tags: v.tags.clone(),
evidence: v.evidence.clone(),
evidence_screenshot: v.evidence_screenshot.clone(),
evidence_viewport: v.evidence_viewport,
})
.collect();
if let Some(shared_fix) = occurrences.first().and_then(|o| o.fix_suggestion.clone()) {
if occurrences[1..]
.iter()
.all(|o| o.fix_suggestion.as_deref() == Some(shared_fix.as_str()))
{
for occ in &mut occurrences[1..] {
occ.fix_suggestion = None;
}
}
}
let axe_id = first
.rule_id
.clone()
.or_else(|| taxonomy_rule.and_then(|r| r.axe_id).map(String::from));
let severity = violations
.iter()
.map(|v| v.severity)
.max()
.unwrap_or(first.severity);
let priority_score = calculate_priority_score(severity, occurrence_count, &tax_id);
let subcategory_de = subcategory_kind.label(false);
let issue_class_de = issue_class_kind.label(false);
let confidence = derive_confidence(&tax_id, subcategory_de, issue_class_de);
let false_positive_risk =
derive_false_positive_risk(&tax_id, subcategory_de, issue_class_de);
let verification = derive_verification(&false_positive_risk);
let (complexity, complexity_kind) =
derive_complexity(occurrence_count, &tax_id, issue_class_de);
let complexity_reason = complexity_text(complexity_kind, true);
let expected_impact_kind = derive_expected_impact(
severity,
occurrence_count,
"wcag",
first.level.to_string().as_str(),
);
let expected_impact = expected_impact_text(&expected_impact_kind, true);
let bfsg_relevance = derive_bfsg_relevance(
"wcag",
&first.rule,
first.level.to_string().as_str(),
severity,
);
let remediation_priority =
derive_remediation_priority(severity, occurrence_count, &complexity);
let display_title = taxonomy_rule
.map(|r| r.title_en.to_string())
.unwrap_or_else(|| first.rule_name.clone());
NormalizedFinding {
category: "wcag".to_string(),
rule_id: tax_id.clone(),
wcag_criterion: first.rule.clone(),
axe_id,
wcag_level: first.level.to_string(),
dimension,
subcategory,
issue_class,
dimension_kind,
subcategory_kind,
issue_class_kind,
severity,
user_impact,
technical_impact,
score_impact,
report_visibility: visibility,
aggregation_key: tax_id,
title: display_title,
description: first.message.clone(),
help_url: first.help_url.clone(),
occurrence_count,
priority_score,
confidence,
false_positive_risk,
verification,
complexity,
complexity_reason,
complexity_kind,
expected_impact,
expected_impact_kind,
bfsg_relevance,
remediation_priority,
occurrences,
}
})
.collect();
findings
}
fn wcag_group_key(violation: &crate::wcag::Violation) -> &str {
if let Some(axe_id) = violation.rule_id.as_deref() {
if RuleLookup::by_legacy_wcag_id(axe_id).is_some() {
return axe_id;
}
}
violation.rule.as_str()
}
fn compute_accessibility_subcategory_scores(
violations: &[crate::wcag::Violation],
) -> Vec<SubcategoryScoreEntry> {
use crate::taxonomy::Subcategory;
const ACCESSIBILITY_SUBCATEGORIES: [Subcategory; 7] = [
Subcategory::ContentAlternatives,
Subcategory::StructureSemantics,
Subcategory::NavigationInteraction,
Subcategory::FormsInteraction,
Subcategory::LanguageClarity,
Subcategory::TechnicalRobustness,
Subcategory::VisualPresentation,
];
let subcategory_for = |v: &crate::wcag::Violation| -> Subcategory {
RuleLookup::by_legacy_wcag_id(wcag_group_key(v))
.map(|r| r.subcategory)
.unwrap_or_default()
};
ACCESSIBILITY_SUBCATEGORIES
.into_iter()
.map(|subcategory| {
let subset: Vec<crate::wcag::Violation> = violations
.iter()
.filter(|v| subcategory_for(v) == subcategory)
.cloned()
.collect();
let score = AccessibilityScorer::calculate_score(&subset).round() as u32;
SubcategoryScoreEntry {
name: subcategory.label(true).to_string(),
subcategory_kind: subcategory,
score,
}
})
.collect()
}
pub fn seo_heading_finding_text(
issue_type: &str,
en: bool,
fallback_message: &str,
) -> (String, String) {
let title = match (issue_type, en) {
("long_heading", true) => "Heading too long".to_string(),
("long_heading", false) => "Überschrift zu lang".to_string(),
("missing_h1", true) => "Missing H1 heading".to_string(),
("missing_h1", false) => "Fehlende H1-Überschrift".to_string(),
("multiple_h1", true) => "Multiple H1 headings".to_string(),
("multiple_h1", false) => "Mehrere H1-Überschriften".to_string(),
("skipped_level", true) => "Skipped heading level".to_string(),
("skipped_level", false) => "Übersprungene Überschriftenebene".to_string(),
("empty_heading", true) => "Empty heading".to_string(),
("empty_heading", false) => "Leere Überschrift".to_string(),
(other, _) => other.replace('_', " "),
};
let technical_impact = match (issue_type, en) {
("skipped_level", true) => "Skipped heading levels break the tree structure for screen readers and SEO crawlers — keep a logical H1→H2→H3 hierarchy.".to_string(),
("skipped_level", false) => "Übersprungene Heading-Ebenen zerstören die Baumstruktur für Screenreader und SEO-Crawler — logische Hierarchie H1→H2→H3 einhalten.".to_string(),
("missing_h1", true) => "Missing H1 heading — page purpose not recognizable for search engines and screen readers.".to_string(),
("missing_h1", false) => "Fehlende H1-Überschrift — Seitenzweck für Suchmaschinen und Screenreader nicht erkennbar.".to_string(),
("multiple_h1", true) => "Multiple H1 headings undermine the content hierarchy; search engines cannot derive a single main focus.".to_string(),
("multiple_h1", false) => "Mehrere H1-Überschriften untergraben die inhaltliche Hierarchie; Suchmaschinen können keinen eindeutigen Hauptfokus ableiten.".to_string(),
("long_heading", true) => "Overly long headings are truncated in SERPs and make quick scanning harder for users.".to_string(),
("long_heading", false) => "Überlange Überschriften werden in SERPs abgeschnitten und erschweren das schnelle Scannen für Nutzer.".to_string(),
("empty_heading", true) => "Empty headings cause navigation problems for screen readers and are treated as a poor signal by SEO crawlers.".to_string(),
("empty_heading", false) => "Leere Überschriften erzeugen Navigationsprobleme für Screenreader und werden von SEO-Crawlern als schlechtes Signal gewertet.".to_string(),
_ => fallback_message.to_string(),
};
(title, technical_impact)
}
fn aggregate_seo_findings(
seo: &crate::seo::SeoAnalysis,
max_occurrences: usize,
) -> Vec<NormalizedFinding> {
let mut heading_groups: HashMap<&str, Vec<&crate::seo::HeadingIssue>> = HashMap::new();
for issue in &seo.headings.issues {
heading_groups
.entry(&issue.issue_type)
.or_default()
.push(issue);
}
let mut findings = Vec::new();
for (issue_type, issues) in heading_groups {
let first = issues[0];
let occurrence_count = issues.len();
let rule_id = format!("seo.headings.{}", issue_type);
let (title, technical_impact) = seo_heading_finding_text(issue_type, true, &first.message);
let priority_score = calculate_priority_score(first.severity, occurrence_count, &rule_id);
let confidence = derive_confidence(&rule_id, "Content", "issue");
let false_positive_risk = derive_false_positive_risk(&rule_id, "Content", "issue");
let verification = derive_verification(&false_positive_risk);
let (complexity, complexity_kind) = derive_complexity(occurrence_count, &rule_id, "issue");
let complexity_reason = complexity_text(complexity_kind, true);
let expected_impact_kind =
derive_expected_impact(first.severity, occurrence_count, "seo", "");
let expected_impact = expected_impact_text(&expected_impact_kind, true);
let bfsg_relevance = derive_bfsg_relevance("seo", "", "", first.severity);
let remediation_priority =
derive_remediation_priority(first.severity, occurrence_count, &complexity);
findings.push(NormalizedFinding {
category: "seo".to_string(),
rule_id: rule_id.clone(),
wcag_criterion: String::new(),
axe_id: None,
wcag_level: String::new(),
dimension: "SEO".to_string(),
subcategory: "Content".to_string(),
issue_class: "issue".to_string(),
dimension_kind: crate::taxonomy::Dimension::Seo,
subcategory_kind: crate::taxonomy::Subcategory::ContentStructure,
issue_class_kind: crate::taxonomy::IssueClass::Weak,
severity: first.severity,
user_impact: String::new(),
technical_impact,
score_impact: ScoreImpactData {
base_penalty: 0.0,
max_penalty: 0.0,
scaling: "none".to_string(),
},
report_visibility: ReportVisibilityData::default(),
aggregation_key: rule_id,
title,
description: first.message.clone(),
help_url: None,
occurrence_count,
priority_score,
confidence,
false_positive_risk,
verification,
complexity,
complexity_reason,
complexity_kind,
expected_impact,
expected_impact_kind,
bfsg_relevance,
remediation_priority,
occurrences: issues
.iter()
.take(max_occurrences)
.map(|i| OccurrenceDetail {
node_id: i.issue_type.clone(),
message: i.message.clone(),
selector: None,
fix_suggestion: None,
html_snippet: None,
suggested_code: None,
tags: vec!["seo".to_string()],
..Default::default()
})
.collect(),
});
}
findings
}
fn filter_aria_hidden_interactive(
interactive_findings: &mut Vec<InteractiveFinding>,
findings: &[NormalizedFinding],
wcag_violations: &[crate::wcag::Violation],
) {
let mut aria_hidden_selectors: std::collections::HashSet<String> = wcag_violations
.iter()
.filter(|v| v.rule == "aria-hidden-focus")
.filter_map(|v| v.selector.clone())
.collect();
aria_hidden_selectors.extend(
findings
.iter()
.filter(|f| f.rule_id == "a11y.aria_hidden_focus.invalid")
.flat_map(|f| f.occurrences.iter().filter_map(|o| o.selector.clone())),
);
if aria_hidden_selectors.is_empty() {
return;
}
fn normalize_selector(sel: &str) -> String {
let mut normalized = String::new();
let mut chars = sel.chars().peekable();
while let Some(c) = chars.next() {
if c == '.' {
while let Some(&next_c) = chars.peek() {
if next_c.is_alphanumeric() || next_c == '-' || next_c == '_' {
chars.next();
} else {
break;
}
}
} else if c.is_alphabetic() {
let mut tag = String::new();
tag.push(c);
while let Some(&next_c) = chars.peek() {
if next_c.is_alphanumeric() || next_c == '-' || next_c == '_' {
tag.push(chars.next().unwrap());
} else {
break;
}
}
if chars.peek() == Some(&'#') {
} else {
normalized.push_str(&tag);
}
} else if c == ' ' {
let is_around_gt = normalized.ends_with('>') || chars.peek() == Some(&'>');
if !is_around_gt {
normalized.push(' ');
}
} else {
normalized.push(c);
}
}
normalized.trim().replace(" >", ">").replace("> ", ">")
}
fn extract_selector_from_message(message: &str) -> Option<String> {
let start_idx = message.find('(')?;
let mut depth = 0;
let mut end_idx = None;
for (i, c) in message[start_idx..].char_indices() {
if c == '(' {
depth += 1;
} else if c == ')' {
depth -= 1;
if depth == 0 {
end_idx = Some(start_idx + i);
break;
}
}
}
let mut sel = &message[start_idx + 1..end_idx?];
if let Some(colon_idx) = sel.find(": display:") {
sel = &sel[..colon_idx];
} else if let Some(colon_idx) = sel.find(": visibility:") {
sel = &sel[..colon_idx];
} else if let Some(colon_idx) = sel.find(": opacity:") {
sel = &sel[..colon_idx];
}
Some(sel.trim().to_string())
}
let normalized_aria_hidden_selectors: std::collections::HashSet<String> = aria_hidden_selectors
.iter()
.map(|s| normalize_selector(s))
.collect();
interactive_findings.retain(|inf| {
if inf.category == "HiddenFocusable" {
if let Some(sel) = extract_selector_from_message(&inf.message) {
let norm_sel = normalize_selector(&sel);
!normalized_aria_hidden_selectors.iter().any(|s| {
norm_sel == *s
|| norm_sel.ends_with(&format!(">{}", s))
|| s.ends_with(&format!(">{}", norm_sel))
})
} else {
true
}
} else {
true
}
});
}
fn build_module_scores(
report: &AuditReport,
accessibility_score: u32,
occurrence_counts: &SeverityCounts,
vuln_security_penalty: u32,
) -> Vec<ModuleScoreEntry> {
let score = accessibility_score;
let accessibility_grade = AccessibilityScorer::calculate_grade(score as f32).to_string();
let mut module_scores = Vec::new();
module_scores.push(ModuleScoreEntry {
name: "Accessibility".to_string(),
score,
grade: accessibility_grade,
weight_pct: 40,
contributes_to_overall: true,
measurement_type: "measured".to_string(),
});
if let Some(ref perf) = report.performance {
let measured = perf.score.metrics_available > 0;
module_scores.push(ModuleScoreEntry {
name: "Performance".to_string(),
score: perf.score.overall,
grade: AccessibilityScorer::calculate_grade(perf.score.overall as f32).to_string(),
weight_pct: 20,
contributes_to_overall: measured,
measurement_type: if measured { "measured" } else { "not_measured" }.to_string(),
});
}
if let Some(ref seo) = report.discoverability.seo {
module_scores.push(ModuleScoreEntry {
name: "SEO".to_string(),
score: seo.score,
grade: AccessibilityScorer::calculate_grade(seo.score as f32).to_string(),
weight_pct: 15,
contributes_to_overall: true,
measurement_type: "measured".to_string(),
});
}
if let Some(ref sec) = report.security {
let adjusted = sec.score.saturating_sub(vuln_security_penalty);
module_scores.push(ModuleScoreEntry {
name: "Security".to_string(),
score: adjusted,
grade: AccessibilityScorer::calculate_grade(adjusted as f32).to_string(),
weight_pct: 10,
contributes_to_overall: true,
measurement_type: "measured".to_string(),
});
}
if let Some(ref mob) = report.experience.mobile {
module_scores.push(ModuleScoreEntry {
name: "Mobile".to_string(),
score: mob.score,
grade: AccessibilityScorer::calculate_grade(mob.score as f32).to_string(),
weight_pct: 10,
contributes_to_overall: true,
measurement_type: "measured".to_string(),
});
}
if let Some(ref hc) = report.html_conform {
module_scores.push(ModuleScoreEntry {
name: "HTML Conformance".to_string(),
score: hc.score,
grade: AccessibilityScorer::calculate_grade(hc.score as f32).to_string(),
weight_pct: 5,
contributes_to_overall: true,
measurement_type: "measured".to_string(),
});
}
if let Some(ref ux) = report.ux {
let a11y_penalty = {
let critical = occurrence_counts.critical;
let high = occurrence_counts.high;
if critical >= 10 {
25 } else if critical >= 5 {
15
} else if critical > 0 {
10
} else if high >= 5 {
5
} else {
0
}
};
let adjusted_ux = ux.score.saturating_sub(a11y_penalty);
let adjusted_grade = crate::registry::LETTER_GRADE.label(adjusted_ux as f32, false);
module_scores.push(ModuleScoreEntry {
name: "UX".to_string(),
score: adjusted_ux,
grade: adjusted_grade.to_string(),
weight_pct: 0,
contributes_to_overall: false,
measurement_type: "heuristic".to_string(),
});
}
if let Some(ref journey) = report.journey {
let a11y_penalty = {
let critical = occurrence_counts.critical;
if critical >= 10 {
20
} else if critical >= 5 {
10
} else if critical > 0 {
5
} else {
0
}
};
let adjusted_journey = journey.score.saturating_sub(a11y_penalty);
let adjusted_grade = crate::registry::LETTER_GRADE.label(adjusted_journey as f32, false);
module_scores.push(ModuleScoreEntry {
name: "Journey".to_string(),
score: adjusted_journey,
grade: adjusted_grade.to_string(),
weight_pct: 0,
contributes_to_overall: false,
measurement_type: "heuristic".to_string(),
});
}
if let Some(ref bp) = report.best_practices {
module_scores.push(ModuleScoreEntry {
name: "Best Practices".to_string(),
score: bp.score,
grade: AccessibilityScorer::calculate_grade(bp.score as f32).to_string(),
weight_pct: 0,
contributes_to_overall: false,
measurement_type: "measured".to_string(),
});
}
let mut push_indicator = |name: &str, score: u32, measurement_type: &str| {
module_scores.push(ModuleScoreEntry {
name: name.to_string(),
score,
grade: AccessibilityScorer::calculate_grade(score as f32).to_string(),
weight_pct: 0,
contributes_to_overall: false,
measurement_type: measurement_type.to_string(),
});
};
if let Some(ref dm) = report.experience.dark_mode {
push_indicator("Dark Mode", dm.score, "optional");
}
if let Some(ref ai) = report.discoverability.ai_visibility {
push_indicator("AI Visibility", ai.score, "heuristic");
}
if let Some(ref sq) = report.discoverability.source_quality {
push_indicator("Source Quality", sq.score, "heuristic");
}
if let Some(ref cv) = report.discoverability.content_visibility {
if cv.signal_count > 0 {
let cv_score = (cv.signal_count.saturating_sub(cv.problem_count) as u32 * 100)
/ cv.signal_count as u32;
push_indicator("Content Visibility", cv_score, "heuristic");
}
}
module_scores
}
fn compute_risk_assessment(
findings: &[NormalizedFinding],
occurrence_counts: &SeverityCounts,
interactive_findings: &[InteractiveFinding],
screen_reader: Option<&crate::screen_reader::ScreenReaderSummary>,
score: u32,
overall_score: u32,
) -> RiskAssessment {
let critical_issues = occurrence_counts.critical;
let high_issues = occurrence_counts.high;
let mut legal_flags = findings
.iter()
.filter(|f| {
f.wcag_level == "A" && matches!(f.severity, Severity::Critical | Severity::High)
})
.count();
if let Some(sr) = screen_reader {
let consent_wall = matches!(
sr.summary.audit_quality,
crate::screen_reader::SrAuditQuality::ConsentWallSuspected
);
if sr.bfsg_compliance.verdict == crate::screen_reader::BfsgVerdict::NonCompliant
&& sr.count_severity("high") > 0
&& !consent_wall
{
legal_flags = legal_flags.max(1);
}
}
let blocking_issues = findings
.iter()
.filter(|f| {
(f.wcag_criterion == "4.1.2" || f.wcag_criterion == "2.1.1")
&& matches!(
f.severity,
Severity::Medium | Severity::High | Severity::Critical
)
})
.map(|f| f.occurrence_count)
.sum::<usize>();
let interactive_critical_issues = interactive_findings
.iter()
.filter(|f| f.severity == Severity::Critical)
.count();
let interactive_high_issues = interactive_findings
.iter()
.filter(|f| f.severity == Severity::High)
.count();
let (sr_high_issues, sr_medium_issues) = screen_reader
.map(|sr| (sr.count_severity("high"), sr.count_severity("medium")))
.unwrap_or((0, 0));
let risk_score = (legal_flags as u32 * 20
+ critical_issues as u32 * 10
+ high_issues as u32 * 3
+ blocking_issues as u32 * 2
+ interactive_critical_issues as u32 * 10
+ interactive_high_issues as u32 * 5
+ sr_high_issues as u32 * 3
+ sr_medium_issues as u32)
.min(100);
let level = if legal_flags >= 3 || critical_issues >= 5 {
RiskLevel::Critical
} else if (legal_flags > 0 && critical_issues > 0)
|| critical_issues >= 3
|| blocking_issues >= 5
|| risk_score >= 80
{
RiskLevel::High
} else if (high_issues >= 3 && score < 80)
|| critical_issues >= 1
|| legal_flags > 0
|| blocking_issues >= 1
|| interactive_critical_issues > 0
|| interactive_high_issues > 0
|| score <= 20
{
RiskLevel::Medium
} else {
RiskLevel::Low
};
let plural = |n: usize, singular: &str, plural: &str| -> String {
if n == 1 {
format!("{} {}", n, singular)
} else {
format!("{} {}", n, plural)
}
};
let summary = match level {
RiskLevel::Critical => {
let prefix = if overall_score >= 80 {
"Critical risk despite high overall score"
} else {
"Critical risk"
};
if legal_flags >= 3 {
format!(
"{}: {} with legal relevance (BFSG). {}.",
prefix,
plural(
legal_flags,
"WCAG Level A violation",
"WCAG Level A violations"
),
plural(
blocking_issues,
"blocker on interactive elements",
"blockers on interactive elements"
)
)
} else {
format!(
"{}: {} on interactive elements and content.",
prefix,
plural(critical_issues, "critical violation", "critical violations")
)
}
}
RiskLevel::High => format!(
"High risk: {} and {}. Users are actively excluded.",
plural(critical_issues, "critical issue", "critical issues"),
plural(high_issues, "serious issue", "serious issues")
),
RiskLevel::Medium => {
if legal_flags > 0 {
format!(
"Medium risk: {} with legal relevance (BFSG){}.",
plural(
legal_flags,
"WCAG Level A violation",
"WCAG Level A violations"
),
if blocking_issues > 0 {
format!(
", {} on interactive elements",
plural(blocking_issues, "blocker", "blockers")
)
} else {
String::new()
}
)
} else if blocking_issues > 0 {
format!(
"Medium risk: {} detected on interactive elements. \
Restrictions for certain user groups.",
plural(blocking_issues, "blocker", "blockers")
)
} else if interactive_critical_issues > 0 {
format!(
"Medium risk: {} from interactive keyboard and state-transition tests.",
plural(
interactive_critical_issues,
"critical finding",
"critical findings"
)
)
} else if interactive_high_issues > 0 {
format!(
"Medium risk: {} from interactive keyboard and state-transition tests.",
plural(
interactive_high_issues,
"serious finding",
"serious findings"
)
)
} else {
format!(
"Medium risk: {} detected. Restrictions for certain user groups.",
plural(
high_issues + critical_issues,
"serious issue",
"serious issues"
)
)
}
}
RiskLevel::Low => {
let notable = interactive_high_issues + interactive_critical_issues;
if notable > 0 {
format!(
"Low risk: No critical violations — keyboard journey contains {}, manual review recommended.",
plural(notable, "notable finding", "notable findings")
)
} else {
"Low risk: No critical violations — improvement potential exists.".to_string()
}
}
};
let (threshold, driven_by) = match level {
RiskLevel::Critical => (
60u32,
if legal_flags >= 3 {
"Legal Compliance"
} else {
"Accessibility"
}
.to_string(),
),
RiskLevel::High => (30u32, "Accessibility".to_string()),
RiskLevel::Medium => (
10u32,
if interactive_critical_issues > 0 {
"Accessibility Journey"
} else if score <= 20 {
"Score"
} else {
"Accessibility"
}
.to_string(),
),
RiskLevel::Low => (0u32, String::new()),
};
RiskAssessment {
level,
score: risk_score,
threshold,
driven_by,
critical_issues,
high_issues,
legal_flags,
blocking_issues,
interactive_critical_issues,
interactive_high_issues,
summary,
}
}
pub fn normalize<'a>(report: &'a AuditReport) -> AuditContext<'a> {
let violations = &report.accessibility.wcag_results.violations;
let seo_reports_lang = report
.discoverability
.seo
.as_ref()
.is_some_and(|s| s.technical.has_lang);
let had_311 = violations.iter().any(|v| v.rule == "3.1.1");
let mut findings = build_wcag_findings(violations);
if let Some(seo) = &report.discoverability.seo {
findings.extend(aggregate_seo_findings(seo, MAX_OCCURRENCES));
}
findings.sort_by(|a, b| {
b.priority_score
.partial_cmp(&a.priority_score)
.unwrap_or(std::cmp::Ordering::Equal)
.then_with(|| b.severity.cmp(&a.severity))
});
let mut interactive_findings = report.interactive_findings.clone();
filter_aria_hidden_interactive(&mut interactive_findings, &findings, violations);
let score = report
.viewport_scores
.as_ref()
.map(ViewportScores::weighted_accessibility)
.unwrap_or_else(|| report.accessibility.score.round().max(1.0) as u32);
let wcag_findings: Vec<_> = findings.iter().filter(|f| f.category == "wcag").collect();
let severity_counts = SeverityCounts {
critical: wcag_findings
.iter()
.filter(|f| f.severity == Severity::Critical)
.count(),
high: wcag_findings
.iter()
.filter(|f| f.severity == Severity::High)
.count(),
medium: wcag_findings
.iter()
.filter(|f| f.severity == Severity::Medium)
.count(),
low: wcag_findings
.iter()
.filter(|f| f.severity == Severity::Low)
.count(),
total: wcag_findings.len(),
};
let occurrence_counts = SeverityCounts {
critical: wcag_findings
.iter()
.filter(|f| f.severity == Severity::Critical)
.map(|f| f.occurrence_count)
.sum(),
high: wcag_findings
.iter()
.filter(|f| f.severity == Severity::High)
.map(|f| f.occurrence_count)
.sum(),
medium: wcag_findings
.iter()
.filter(|f| f.severity == Severity::Medium)
.map(|f| f.occurrence_count)
.sum(),
low: wcag_findings
.iter()
.filter(|f| f.severity == Severity::Low)
.map(|f| f.occurrence_count)
.sum(),
total: wcag_findings.iter().map(|f| f.occurrence_count).sum(),
};
let vuln_security_penalty: u32 = report
.best_practices
.as_ref()
.map(|bp| {
bp.vulnerable_libraries
.vulnerable
.iter()
.map(|v| match v.severity.as_str() {
"high" => 15,
"medium" => 8,
_ => 3,
})
.sum::<u32>()
.min(30)
})
.unwrap_or(0);
let module_scores =
build_module_scores(report, score, &occurrence_counts, vuln_security_penalty);
let (overall_score, score_calculation_method, score_breakdown) =
if let Some(ref vs) = report.viewport_scores {
let security_adjusted = report
.security
.as_ref()
.map(|s| s.score.saturating_sub(vuln_security_penalty));
let blend_weight = if security_adjusted.is_some() {
90u32
} else {
100u32
};
let mut weighted = vs.weighted_overall as f64 * blend_weight as f64;
let mut total = blend_weight as f64;
if let Some(sec) = security_adjusted {
weighted += sec as f64 * 10.0;
total += 10.0;
}
let breakdown = ScoreBreakdown {
calculation_note: viewport_score_calculation_note(),
desktop_weight_pct: 30,
mobile_weight_pct: 70,
desktop_accessibility: vs.desktop.accessibility,
mobile_accessibility: vs.mobile.accessibility,
viewport_blended_accessibility: vs.weighted_accessibility(),
desktop_overall: vs.desktop.overall,
mobile_overall: vs.mobile.overall,
viewport_blended_overall: vs.weighted_overall,
viewport_blend_weight_pct: blend_weight,
security_score: security_adjusted,
security_weight_pct: security_adjusted.map(|_| 10u32),
};
(
(weighted / total).round() as u32,
"viewport_weighted".to_string(),
Some(breakdown),
)
} else {
let contributing_modules = module_scores.iter().filter(|m| m.contributes_to_overall);
let (weighted_sum, total_weight) =
contributing_modules.fold((0.0, 0.0), |(sum, total), module| {
(
sum + module.score as f64 * module.weight_pct as f64,
total + module.weight_pct as f64,
)
});
(
(weighted_sum / total_weight).round() as u32,
"module_weighted".to_string(),
None,
)
};
let grade = AccessibilityScorer::calculate_grade(overall_score as f32).to_string();
let certificate = AccessibilityScorer::calculate_certificate(overall_score as f32).to_string();
let mut audit_flags = Vec::new();
if report.accessibility.execution.quality.qualified_results {
audit_flags.push(AuditFlag {
kind: "incomplete_audit".to_string(),
related_rule: None,
source: "audit.execution".to_string(),
message: format!(
"Audit coverage is {:?}: {} rule checks failed and {} modules were partial or failed. Scores only describe the successfully measured scope.",
report.accessibility.execution.quality.status,
report.accessibility.execution.quality.failed_rule_checks,
report.accessibility.execution.quality.partial_or_failed_modules,
),
});
}
if seo_reports_lang && had_311 {
audit_flags.push(AuditFlag {
kind: "conflicting_signal".to_string(),
related_rule: Some("3.1.1".to_string()),
source: "seo.technical.has_lang".to_string(),
message: "SEO detected a language declaration while WCAG still reported 3.1.1. The finding remains in the report and should be verified against the rendered DOM.".to_string(),
});
}
if let Some(ref vs) = report.viewport_scores {
let desktop_a11y = vs.desktop.accessibility as i32;
let mobile_a11y = vs.mobile.accessibility as i32;
let gap = (desktop_a11y - mobile_a11y).abs();
if gap >= 20 {
let (higher, lower, higher_score, lower_score) = if desktop_a11y >= mobile_a11y {
("Desktop", "Mobile", desktop_a11y, mobile_a11y)
} else {
("Mobile", "Desktop", mobile_a11y, desktop_a11y)
};
audit_flags.push(AuditFlag {
kind: "viewport_gap".to_string(),
related_rule: None,
source: "viewport_scores.accessibility".to_string(),
message: format!(
"{higher} scored {higher_score}, {lower} scored {lower_score} — a {gap}-point gap suggests {lower}-specific rendering differences (e.g. lazy-loaded components, injected markup, or different DOM paths) rather than a site-wide failure.",
),
});
}
}
if report.consent_banner_detected {
let msg = if report.consent_banner_dismissed {
format!(
"Consent banner detected and automatically dismissed{}. Audit results reflect the page content after consent.",
report.consent_banner_cmp.as_ref().map(|c| format!(" ({})", c)).unwrap_or_default()
)
} else {
format!(
"Consent banner detected{} — audit performed without consent. Accessibility and SEO results may be incomplete. Recommendation: use --dismiss-consent.",
report.consent_banner_cmp.as_ref().map(|c| format!(" ({})", c)).unwrap_or_default()
)
};
audit_flags.push(AuditFlag {
kind: "consent_banner".to_string(),
related_rule: None,
source: "browser.consent".to_string(),
message: msg,
});
if !report.consent_banner_dismissed {
let violation_count: usize = report.accessibility.wcag_results.violations.len();
if report.accessibility.nodes_analyzed > 0
&& violation_count > report.accessibility.nodes_analyzed
{
audit_flags.push(AuditFlag {
kind: "consent_wall_artifact".to_string(),
related_rule: None,
source: "browser.consent".to_string(),
message: format!(
"Possible consent wall artifact: {} violations with only {} analyzed nodes. \
Scores may be measuring the consent dialog rather than the actual page content. \
Recommendation: re-run the audit with --dismiss-consent.",
violation_count, report.accessibility.nodes_analyzed
),
});
}
}
}
let has_broken_skip_link = interactive_findings
.iter()
.any(|f| f.category == "SkipLink");
let has_bypass_blocks_violation = findings
.iter()
.any(|f| f.rule_id == "a11y.bypass_blocks.missing");
if has_broken_skip_link && !has_bypass_blocks_violation {
audit_flags.push(AuditFlag {
kind: "bypass_blocks_untested".to_string(),
related_rule: Some("a11y.bypass_blocks.missing".to_string()),
source: "a11y_journey.skip_link".to_string(),
message: "A skip link is present (WCAG 2.4.1 static check passed) but the \
journey found it does not move keyboard focus to the target. The page \
effectively fails WCAG 2.4.1 — verify and fix the skip-link target."
.to_string(),
});
}
let screen_reader = report
.screen_reader_audit
.as_ref()
.map(crate::screen_reader::ScreenReaderSummary::from_report);
let risk = compute_risk_assessment(
&findings,
&occurrence_counts,
&interactive_findings,
screen_reader.as_ref(),
score,
overall_score,
);
let certificate = gate_certificate_by_risk(
certificate,
&risk.level,
risk.legal_flags,
risk.blocking_issues,
);
let accessibility_subcategory_scores = compute_accessibility_subcategory_scores(violations);
let security_category_scores = report
.security
.as_ref()
.map(|s| {
crate::security::calculate_security_category_scores(&s.issues)
.into_iter()
.map(|(category, score)| SecurityCategoryScoreEntry {
name: category.label(true).to_string(),
category_kind: category,
score,
})
.collect()
})
.unwrap_or_default();
let normalized_data = NormalizedReport {
url: report.url.clone(),
wcag_level: report.wcag_level,
timestamp: report.timestamp,
duration_ms: report.duration_ms,
nodes_analyzed: report.accessibility.nodes_analyzed,
score,
grade,
certificate,
findings,
severity_counts,
occurrence_counts,
accessibility_assessments: normalize_assessments(&report.accessibility.wcag_results),
rule_outcomes: report.accessibility.wcag_results.rule_outcomes.clone(),
execution: report.accessibility.execution.clone(),
module_scores,
overall_score,
accessibility_subcategory_scores,
security_category_scores,
risk,
principle_coverage: AccessibilityScorer::calculate_coverage(violations),
audit_flags,
consent_privacy: report.consent_privacy.clone(),
has_screenshots: report.page_screenshots.is_some(),
viewport_scores: report.viewport_scores.clone(),
score_calculation_method,
score_breakdown,
interactive_findings,
accessibility_journey: report.accessibility_journey.clone(),
screen_reader,
interpretation: None,
};
let mut ctx = AuditContext {
normalized: normalized_data,
raw_dual_viewport: report.dual_viewport.as_ref(),
raw_performance: report.performance.as_ref(),
raw_performance_desktop: report
.dual_viewport
.as_ref()
.and_then(|d| d.desktop.performance.as_ref()),
raw_seo: report.discoverability.seo.as_ref(),
raw_security: report.security.as_ref(),
raw_html_conform: report.html_conform.as_ref(),
raw_mobile: report.experience.mobile.as_ref(),
raw_ux: report.ux.as_ref(),
raw_journey: report.journey.as_ref(),
raw_dark_mode: report.experience.dark_mode.as_ref(),
raw_design_quality: report.experience.design_quality.as_ref(),
raw_ai_transparency: report.experience.ai_transparency.as_ref(),
raw_network_dns: report.experience.network_dns.as_ref(),
raw_source_quality: report.discoverability.source_quality.as_ref(),
raw_ai_visibility: report.discoverability.ai_visibility.as_ref(),
raw_tech_stack: report.discoverability.tech_stack.as_ref(),
raw_content_visibility: report.discoverability.content_visibility.as_ref(),
raw_wcag: &report.accessibility.wcag_results,
raw_patterns: report.patterns.as_ref(),
raw_throttled_performance: &report.throttled_performance,
raw_best_practices: report.best_practices.as_ref(),
raw_commerce: report.commerce.as_ref(),
};
ctx.normalized.interpretation = Some(Interpretation::from_context(&ctx));
ctx
}
fn calculate_priority_score(severity: Severity, occurrence_count: usize, rule_id: &str) -> f32 {
let severity_weight = match severity {
Severity::Critical => 4.0,
Severity::High => 3.0,
Severity::Medium => 2.0,
Severity::Low => 1.0,
};
let reach = occurrence_count.max(1) as f32;
let effort_weight = effort_weight_for_rule(rule_id);
(severity_weight * reach) / effort_weight
}
fn derive_confidence(rule_id: &str, subcategory: &str, issue_class: &str) -> String {
let key = format!(
"{} {} {}",
rule_id.to_ascii_lowercase(),
subcategory.to_ascii_lowercase(),
issue_class.to_ascii_lowercase()
);
if key.contains("alt_text.weak")
|| key.contains("understand")
|| key.contains("readability")
|| subcategory.eq_ignore_ascii_case("content")
{
"medium".to_string()
} else if key.contains("aria")
|| key.contains("heading")
|| key.contains("landmark")
|| key.contains("focus")
{
"high".to_string()
} else {
"very_high".to_string()
}
}
fn derive_false_positive_risk(rule_id: &str, subcategory: &str, issue_class: &str) -> String {
let key = format!(
"{} {} {}",
rule_id.to_ascii_lowercase(),
subcategory.to_ascii_lowercase(),
issue_class.to_ascii_lowercase()
);
if key.contains("weak")
|| key.contains("alt_text.weak")
|| key.contains("understand")
|| subcategory.eq_ignore_ascii_case("content")
{
"medium".to_string()
} else if key.contains("aria") || key.contains("heading") || key.contains("landmark") {
"low".to_string()
} else {
"very_low".to_string()
}
}
fn derive_verification(false_positive_risk: &str) -> String {
match false_positive_risk {
"medium" | "high" => "manual_review_recommended",
_ => "automatically_confirmed",
}
.to_string()
}
#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize, Default)]
pub enum ComplexityKind {
HighOccurrence {
occurrence_count: usize,
},
TechnicalPattern,
ModerateOccurrence {
occurrence_count: usize,
},
#[default]
LowScope,
}
impl ComplexityKind {
pub fn with_occurrence_count(self, occurrence_count: usize) -> Self {
match self {
ComplexityKind::HighOccurrence { .. } => {
ComplexityKind::HighOccurrence { occurrence_count }
}
ComplexityKind::ModerateOccurrence { .. } => {
ComplexityKind::ModerateOccurrence { occurrence_count }
}
other => other,
}
}
}
pub fn complexity_text(kind: ComplexityKind, en: bool) -> String {
match kind {
ComplexityKind::HighOccurrence { occurrence_count } => {
if en {
format!(
"{} occurrence{} indicate a component- or template-level issue.",
occurrence_count,
if occurrence_count == 1 { "" } else { "s" }
)
} else {
format!(
"{} Vorkommen deuten auf ein Komponenten- oder Template-Problem hin.",
occurrence_count
)
}
}
ComplexityKind::TechnicalPattern => {
if en {
"The fix is technical but affects a limited number of patterns.".to_string()
} else {
"Die Behebung ist technisch, betrifft aber nur wenige Muster.".to_string()
}
}
ComplexityKind::ModerateOccurrence { occurrence_count } => {
if en {
format!(
"{} occurrence{} require consistent updates across content or templates.",
occurrence_count,
if occurrence_count == 1 { "" } else { "s" }
)
} else {
format!(
"{} Vorkommen erfordern einheitliche Anpassungen in Inhalten oder Templates.",
occurrence_count
)
}
}
ComplexityKind::LowScope => {
if en {
"Few occurrences and a clearly scoped fix.".to_string()
} else {
"Wenige Vorkommen und ein klar abgegrenzter Fix.".to_string()
}
}
}
}
fn derive_complexity(
occurrence_count: usize,
rule_id: &str,
issue_class: &str,
) -> (String, ComplexityKind) {
let key = format!(
"{} {}",
rule_id.to_ascii_lowercase(),
issue_class.to_ascii_lowercase()
);
if occurrence_count >= 10 {
(
"high".to_string(),
ComplexityKind::HighOccurrence { occurrence_count },
)
} else if key.contains("aria") || key.contains("focus") || key.contains("keyboard") {
("medium".to_string(), ComplexityKind::TechnicalPattern)
} else if occurrence_count >= 5 {
(
"medium".to_string(),
ComplexityKind::ModerateOccurrence { occurrence_count },
)
} else {
("low".to_string(), ComplexityKind::LowScope)
}
}
#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize, Default)]
pub enum ScoreEffect {
High,
Medium,
#[default]
Low,
}
impl ScoreEffect {
fn label(self, en: bool) -> &'static str {
match (self, en) {
(ScoreEffect::High, true) => "high",
(ScoreEffect::High, false) => "hoch",
(ScoreEffect::Medium, true) => "medium",
(ScoreEffect::Medium, false) => "mittel",
(ScoreEffect::Low, true) => "low",
(ScoreEffect::Low, false) => "niedrig",
}
}
}
fn score_effect(severity: Severity, occurrence_count: usize) -> ScoreEffect {
match (severity, occurrence_count) {
(Severity::Critical | Severity::High, n) if n >= 5 => ScoreEffect::High,
(Severity::Critical | Severity::High, _) => ScoreEffect::Medium,
(_, n) if n >= 10 => ScoreEffect::Medium,
_ => ScoreEffect::Low,
}
}
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
pub enum ExpectedImpactKind {
Wcag {
occurrence_count: usize,
score_effect: ScoreEffect,
wcag_level: String,
},
Other {
occurrence_count: usize,
score_effect: ScoreEffect,
},
}
impl Default for ExpectedImpactKind {
fn default() -> Self {
ExpectedImpactKind::Other {
occurrence_count: 0,
score_effect: ScoreEffect::default(),
}
}
}
impl ExpectedImpactKind {
pub fn with_occurrence_count(self, occurrence_count: usize) -> Self {
match self {
ExpectedImpactKind::Wcag {
score_effect,
wcag_level,
..
} => ExpectedImpactKind::Wcag {
occurrence_count,
score_effect,
wcag_level,
},
ExpectedImpactKind::Other { score_effect, .. } => ExpectedImpactKind::Other {
occurrence_count,
score_effect,
},
}
}
}
pub fn expected_impact_text(kind: &ExpectedImpactKind, en: bool) -> String {
match kind {
ExpectedImpactKind::Wcag {
occurrence_count,
score_effect,
wcag_level,
} => {
let n = *occurrence_count;
if en {
format!(
"Fixes {} occurrence{}; expected score impact: {}; WCAG level: {}.",
n,
if n == 1 { "" } else { "s" },
score_effect.label(true),
wcag_level
)
} else {
format!(
"Behebt {} Vorkommen; erwartete Auswirkung auf den Score: {}; WCAG-Level: {}.",
n,
score_effect.label(false),
wcag_level
)
}
}
ExpectedImpactKind::Other {
occurrence_count,
score_effect,
} => {
let n = *occurrence_count;
if en {
format!(
"Fixes {} occurrence{}; expected visibility/structure impact: {}.",
n,
if n == 1 { "" } else { "s" },
score_effect.label(true)
)
} else {
format!(
"Behebt {} Vorkommen; erwartete Auswirkung auf Sichtbarkeit/Struktur: {}.",
n,
score_effect.label(false)
)
}
}
}
}
fn derive_expected_impact(
severity: Severity,
occurrence_count: usize,
category: &str,
wcag_level: &str,
) -> ExpectedImpactKind {
let effect = score_effect(severity, occurrence_count);
if category == "wcag" {
ExpectedImpactKind::Wcag {
occurrence_count,
score_effect: effect,
wcag_level: wcag_level.to_string(),
}
} else {
ExpectedImpactKind::Other {
occurrence_count,
score_effect: effect,
}
}
}
fn derive_bfsg_relevance(
category: &str,
wcag_criterion: &str,
wcag_level: &str,
severity: Severity,
) -> String {
if category != "wcag" {
return "low".to_string();
}
if !crate::wcag::en301549::EN301549_WEB_CLAUSES
.iter()
.any(|c| c.wcag == wcag_criterion)
{
return "low".to_string();
}
match (wcag_level, severity) {
("A", Severity::Critical | Severity::High) => "high",
("A" | "AA", _) => "medium",
_ => "low",
}
.to_string()
}
fn derive_remediation_priority(
severity: Severity,
occurrence_count: usize,
complexity: &str,
) -> String {
match (severity, occurrence_count, complexity) {
(Severity::Critical, _, _) => "immediate",
(Severity::High, _, "low") => "quick_win",
(Severity::High, _, _) => "high",
(Severity::Medium, n, _) if n >= 10 => "high",
(Severity::Medium, _, "low") => "quick_win",
_ => "normal",
}
.to_string()
}
fn effort_weight_for_rule(rule_id: &str) -> f32 {
if let Some(rule) = RuleLookup::by_id(rule_id) {
use crate::taxonomy::IssueClass;
match rule.issue_class {
IssueClass::Missing => 1.0,
IssueClass::Invalid => 1.2,
IssueClass::Weak => 1.5,
IssueClass::Risk => 2.0,
IssueClass::Opportunity => 1.2,
IssueClass::Informational => 2.5,
}
} else {
1.5
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::wcag::{Violation, WcagResults};
#[test]
fn interactive_finding_text_en_has_no_german_umlauts() {
use InteractiveFindingKind::*;
let has_umlaut = |s: &str| s.chars().any(|c| "äöüÄÖÜß".contains(c));
let sample_values = InteractiveFindingValues {
selector: Some("a#one".to_string()),
count: Some(2),
examples: Some("a, b".to_string()),
truncated: Some(true),
title_before: Some("Home".to_string()),
role: Some("main".to_string()),
};
let all_kinds = [
HiddenFocusableAriaHidden,
HiddenFocusableInert,
HiddenFocusableStyle,
FocusIndicatorNotDetected,
TabOrderBackwardJumps,
FocusTrapNotEntered,
FocusTrapBackgroundNotHidden,
FocusTrapEscaped,
FocusTrapEscapeNotClosing,
FocusRestorationLostToBody,
MenuNotOpened,
MenuFocusNotMoved,
MenuEscapeNotClosing,
TabsSelectionNotMoved,
TabsFocusNotOnTab,
DisclosureNotOpened,
DisclosureNotClosed,
SpaNoAnnouncementSignal,
SpaTitleUnchanged,
SpaFocusNotMoved,
SkipLinkFocusNotMoved,
FormErrorSilentFailure,
FormErrorInvalidWithoutLiveRegion,
FormErrorUnlinkedFields,
FormErrorFocusNotManaged,
FormErrorLiveRegionLateInsertion,
AddToCartNoStatusAnnouncement,
AddToCartNoFeedbackDetected,
QuantityStepperKeyboardInoperable,
QuantityStepperValueNotExposed,
LinkTextGeneric,
LinkTextDuplicate,
HeadingMissingH1,
HeadingMultipleH1,
HeadingLevelSkip,
LandmarkMissingMain,
LandmarkNavWithoutLabels,
LandmarkDuplicateUnique,
MediaControlsMissingName,
MediaControlsNotReachable,
];
for kind in all_kinds {
let (message, fix) = interactive_finding_text(kind, &sample_values, true);
assert!(
!has_umlaut(&message),
"EN message for {kind:?} contains German umlaut: {message}"
);
if let Some(fix) = &fix {
assert!(
!has_umlaut(fix),
"EN fix_suggestion for {kind:?} contains German umlaut: {fix}"
);
}
let (de_message, _) = interactive_finding_text(kind, &sample_values, false);
assert_ne!(message, de_message, "DE/EN message identical for {kind:?}");
}
}
#[test]
fn complexity_and_expected_impact_text_en_has_no_german_umlauts_and_correct_plural() {
let has_umlaut = |s: &str| s.chars().any(|c| "äöüÄÖÜß".contains(c));
let complexity_kinds = [
ComplexityKind::HighOccurrence {
occurrence_count: 12,
},
ComplexityKind::TechnicalPattern,
ComplexityKind::ModerateOccurrence {
occurrence_count: 6,
},
ComplexityKind::LowScope,
];
for kind in complexity_kinds {
let en_text = complexity_text(kind, true);
assert!(
!has_umlaut(&en_text),
"EN complexity_reason for {kind:?} contains German umlaut: {en_text}"
);
let de_text = complexity_text(kind, false);
assert_ne!(
en_text, de_text,
"DE/EN complexity_reason identical for {kind:?}"
);
}
let impact_kinds = [
ExpectedImpactKind::Wcag {
occurrence_count: 1,
score_effect: ScoreEffect::High,
wcag_level: "A".to_string(),
},
ExpectedImpactKind::Other {
occurrence_count: 1,
score_effect: ScoreEffect::Low,
},
];
for kind in &impact_kinds {
let en_text = expected_impact_text(kind, true);
assert!(
!has_umlaut(&en_text),
"EN expected_impact for {kind:?} contains German umlaut: {en_text}"
);
assert!(
en_text.contains("1 occurrence;") || en_text.contains("1 occurrence "),
"singular phrasing missing for {kind:?}: {en_text}"
);
assert!(
!en_text.contains("1 occurrences"),
"singular/plural bug regressed for {kind:?}: {en_text}"
);
let de_text = expected_impact_text(kind, false);
assert_ne!(
en_text, de_text,
"DE/EN expected_impact identical for {kind:?}"
);
}
let plural = expected_impact_text(
&ExpectedImpactKind::Other {
occurrence_count: 3,
score_effect: ScoreEffect::Medium,
},
true,
);
assert!(
plural.contains("3 occurrences;"),
"plural phrasing missing: {plural}"
);
}
#[test]
fn test_normalize_empty() {
let report = AuditReport::new(
"https://example.com".to_string(),
WcagLevel::AA,
WcagResults::new(),
100,
);
let norm = normalize(&report);
assert_eq!(norm.normalized.score, 100);
assert_eq!(norm.normalized.grade, "A");
assert_eq!(norm.normalized.certificate, "SEHR GUT");
assert!(norm.normalized.findings.is_empty());
assert_eq!(norm.normalized.severity_counts.total, 0);
}
#[test]
fn test_normalize_groups_by_rule() {
let mut results = WcagResults::new();
results.add_violation(Violation::new(
"1.1.1",
"Non-text Content",
WcagLevel::A,
Severity::High,
"Missing alt 1",
"n1",
));
results.add_violation(Violation::new(
"1.1.1",
"Non-text Content",
WcagLevel::A,
Severity::High,
"Missing alt 2",
"n2",
));
results.add_violation(Violation::new(
"2.4.4",
"Link Purpose",
WcagLevel::A,
Severity::Medium,
"Unclear link",
"n3",
));
let report = AuditReport::new(
"https://example.com".to_string(),
WcagLevel::AA,
results,
100,
);
let norm = normalize(&report);
assert_eq!(norm.normalized.findings.len(), 2);
let alt = norm
.normalized
.findings
.iter()
.find(|f| f.wcag_criterion == "1.1.1")
.unwrap();
assert_eq!(alt.occurrence_count, 2);
assert!(alt.priority_score > 0.0);
assert_eq!(alt.occurrences.len(), 2);
assert_eq!(alt.dimension, "Accessibility");
assert!(!alt.rule_id.is_empty());
}
#[test]
fn test_normalize_taxonomy_fields() {
let mut results = WcagResults::new();
results.add_violation(Violation::new(
"1.1.1",
"Non-text Content",
WcagLevel::A,
Severity::High,
"Missing alt",
"n1",
));
let report = AuditReport::new(
"https://example.com".to_string(),
WcagLevel::AA,
results,
100,
);
let norm = normalize(&report);
let finding = &norm.normalized.findings[0];
assert_eq!(finding.rule_id, "a11y.alt_text.missing");
assert_eq!(finding.dimension, "Accessibility");
assert_eq!(finding.subcategory, "Content & Alternatives");
assert_eq!(finding.issue_class, "Missing");
assert!(finding.score_impact.base_penalty > 0.0);
assert!(finding.score_impact.max_penalty >= finding.score_impact.base_penalty);
assert!(!finding.score_impact.scaling.is_empty());
assert!(!finding.user_impact.is_empty());
assert_eq!(finding.title, "Missing alternative text on images");
assert_eq!(
finding.user_impact,
"Screen reader users receive no image information."
);
assert_eq!(finding.technical_impact, "Non-conformant image markup.");
for field in [
&finding.title,
&finding.user_impact,
&finding.technical_impact,
] {
assert!(
!field.chars().any(|c| "äöüÄÖÜß".contains(c)),
"canonical-English JSON field contains German diacritics: {field}"
);
}
}
#[test]
fn test_frame_title_keeps_wcag_241_and_specific_taxonomy() {
let mut results = WcagResults::new();
results.add_violation(
Violation::new(
"2.4.1",
"Frame title",
WcagLevel::A,
Severity::High,
"Iframe is missing an accessible name",
"iframe:nth-of-type(1)",
)
.with_rule_id("frame-title"),
);
results.add_violation(
Violation::new(
"2.4.1",
"Bypass Blocks",
WcagLevel::A,
Severity::High,
"No bypass mechanism found",
"document",
)
.with_rule_id("bypass"),
);
let report = AuditReport::new(
"https://example.com".to_string(),
WcagLevel::AA,
results,
100,
);
let norm = normalize(&report);
let frame = norm
.normalized
.findings
.iter()
.find(|f| f.rule_id == "a11y.frame_title.missing")
.expect("frame-title finding should keep its own taxonomy rule");
assert_eq!(frame.wcag_criterion, "2.4.1");
assert_eq!(frame.axe_id.as_deref(), Some("frame-title"));
assert!(norm
.normalized
.findings
.iter()
.any(|f| f.rule_id == "a11y.bypass_blocks.missing"));
}
#[test]
fn test_dom_parity_rules_keep_specific_taxonomy() {
let mut results = WcagResults::new();
results.add_violation(
Violation::new(
"3.2.2",
"On Input",
WcagLevel::A,
Severity::Medium,
"Form has input controls but no explicit submit button",
"form",
)
.with_rule_id("form-no-submit"),
);
results.add_violation(
Violation::new(
"1.3.1",
"Info and Relationships",
WcagLevel::A,
Severity::Medium,
"Presentational container contains semantic child",
"div[role=\"presentation\"]",
)
.with_rule_id("presentation-semantic-children"),
);
results.add_violation(
Violation::new(
"1.3.1",
"Landmark Main Present",
WcagLevel::A,
Severity::High,
"Page has no main landmark",
"document",
)
.with_rule_id("landmark-main-present"),
);
results.add_violation(
Violation::new(
"1.3.1",
"Landmark Unique",
WcagLevel::A,
Severity::Medium,
"Multiple navigation landmarks share the same accessible name",
"nav",
)
.with_rule_id("landmark-unique"),
);
let report = AuditReport::new(
"https://example.com".to_string(),
WcagLevel::AA,
results,
100,
);
let norm = normalize(&report);
let form = norm
.normalized
.findings
.iter()
.find(|f| f.rule_id == "a11y.form_no_submit.missing")
.expect("form-no-submit finding should keep its own taxonomy rule");
assert_eq!(form.wcag_criterion, "3.2.2");
assert_eq!(form.axe_id.as_deref(), Some("form-no-submit"));
let presentation = norm
.normalized
.findings
.iter()
.find(|f| f.rule_id == "a11y.presentation_semantic_children.invalid")
.expect("presentation-semantic-children should keep its own taxonomy rule");
assert_eq!(presentation.wcag_criterion, "1.3.1");
assert_eq!(
presentation.axe_id.as_deref(),
Some("presentation-semantic-children")
);
assert!(norm
.normalized
.findings
.iter()
.any(|f| f.rule_id == "a11y.landmark_main.missing"
&& f.axe_id.as_deref() == Some("landmark-main-present")));
assert!(norm
.normalized
.findings
.iter()
.any(|f| f.rule_id == "a11y.landmark_unique.invalid"
&& f.axe_id.as_deref() == Some("landmark-unique")));
}
#[test]
fn test_normalize_severity_counts() {
let mut results = WcagResults::new();
results.add_violation(Violation::new(
"1.1.1",
"Alt",
WcagLevel::A,
Severity::High,
"Err",
"n1",
));
results.add_violation(Violation::new(
"1.1.1",
"Alt",
WcagLevel::A,
Severity::High,
"Err",
"n2",
));
results.add_violation(Violation::new(
"2.4.4",
"Link",
WcagLevel::A,
Severity::Medium,
"Warn",
"n3",
));
let report = AuditReport::new(
"https://example.com".to_string(),
WcagLevel::AA,
results,
100,
);
let norm = normalize(&report);
assert_eq!(norm.normalized.severity_counts.high, 1);
assert_eq!(norm.normalized.severity_counts.medium, 1);
assert_eq!(norm.normalized.severity_counts.total, 2);
assert_eq!(norm.normalized.occurrence_counts.high, 2);
assert_eq!(norm.normalized.occurrence_counts.medium, 1);
assert_eq!(norm.normalized.occurrence_counts.total, 3);
}
#[test]
fn critical_interactive_finding_raises_risk_without_wcag_counts() {
let mut report = AuditReport::new(
"https://example.com".to_string(),
WcagLevel::AA,
WcagResults::new(),
100,
);
report.interactive_findings.push(InteractiveFinding {
category: "FocusTrap".to_string(),
kind: InteractiveFindingKind::FocusTrapEscaped,
maps_to_finding: None,
severity: Severity::Critical,
journey: "modal".to_string(),
before_snapshot_label: None,
after_snapshot_label: None,
message: "Modal has no focus trap.".to_string(),
fix_suggestion: None,
values: InteractiveFindingValues::default(),
});
let norm = normalize(&report);
assert_eq!(norm.normalized.risk.level, RiskLevel::Medium);
assert_eq!(norm.normalized.severity_counts.total, 0);
assert_eq!(norm.normalized.score, 100);
assert_eq!(norm.normalized.risk.interactive_critical_issues, 1);
}
#[test]
fn high_interactive_finding_raises_risk_without_wcag_counts() {
let mut report = AuditReport::new(
"https://example.com".to_string(),
WcagLevel::AA,
WcagResults::new(),
100,
);
report.interactive_findings.push(InteractiveFinding {
category: "SkipLink".to_string(),
kind: InteractiveFindingKind::SkipLinkFocusNotMoved,
maps_to_finding: None,
severity: Severity::High,
journey: "skip-link".to_string(),
before_snapshot_label: None,
after_snapshot_label: None,
message: "Skip link is present but does not move focus to the target.".to_string(),
fix_suggestion: None,
values: InteractiveFindingValues::default(),
});
let norm = normalize(&report);
assert_eq!(norm.normalized.risk.level, RiskLevel::Medium);
assert_eq!(norm.normalized.risk.score, 5);
assert_eq!(norm.normalized.risk.interactive_high_issues, 1);
assert_eq!(norm.normalized.severity_counts.total, 0);
assert_eq!(norm.normalized.score, 100);
}
#[test]
fn test_normalize_lang_conflict_flag_keeps_finding() {
let mut results = WcagResults::new();
results.add_violation(Violation::new(
"3.1.1",
"Language",
WcagLevel::A,
Severity::High,
"Missing lang",
"n1",
));
let mut report = AuditReport::new(
"https://example.com".to_string(),
WcagLevel::AA,
results,
100,
);
let norm_no_seo = normalize(&report);
assert_eq!(norm_no_seo.normalized.findings.len(), 1);
assert!(norm_no_seo.normalized.audit_flags.is_empty());
report.discoverability.seo = Some(crate::seo::SeoAnalysis {
technical: crate::seo::TechnicalSeo {
has_lang: true,
..Default::default()
},
..Default::default()
});
let norm_with_seo = normalize(&report);
assert_eq!(norm_with_seo.normalized.findings.len(), 1);
assert_eq!(
norm_with_seo.normalized.score,
report.accessibility.score.round() as u32
);
assert_eq!(norm_with_seo.normalized.audit_flags.len(), 1);
assert_eq!(
norm_with_seo.normalized.audit_flags[0]
.related_rule
.as_deref(),
Some("3.1.1")
);
}
#[test]
fn test_score_consistency() {
let mut results = WcagResults::new();
results.add_violation(Violation::new(
"1.4.3",
"Contrast",
WcagLevel::AA,
Severity::Low,
"Low contrast",
"n1",
));
let report = AuditReport::new(
"https://example.com".to_string(),
WcagLevel::AA,
results,
100,
);
let norm = normalize(&report);
let expected_grade =
AccessibilityScorer::calculate_grade(norm.normalized.overall_score as f32);
let expected_cert =
AccessibilityScorer::calculate_certificate(norm.normalized.overall_score as f32);
assert_eq!(norm.normalized.grade, expected_grade);
assert_eq!(norm.normalized.certificate, expected_cert);
}
#[test]
fn high_risk_vetoes_positive_certificate() {
assert_eq!(
gate_certificate_by_risk("STABIL".to_string(), &RiskLevel::High, 0, 0),
"EINGESCHRÄNKT"
);
assert_eq!(
gate_certificate_by_risk("SEHR GUT".to_string(), &RiskLevel::Critical, 0, 0),
"NICHT BESTANDEN"
);
assert_eq!(
gate_certificate_by_risk("AUSBAUFÄHIG".to_string(), &RiskLevel::High, 0, 0),
"EINGESCHRÄNKT"
);
assert_eq!(
gate_certificate_by_risk("UNGENÜGEND".to_string(), &RiskLevel::High, 0, 0),
"UNGENÜGEND"
);
}
#[test]
fn legal_or_blocking_vetoes_positive_certificate_at_medium_risk() {
assert_eq!(
gate_certificate_by_risk("GUT".to_string(), &RiskLevel::Medium, 1, 0),
"EINGESCHRÄNKT"
);
assert_eq!(
gate_certificate_by_risk("STABIL".to_string(), &RiskLevel::Medium, 0, 3),
"EINGESCHRÄNKT"
);
assert_eq!(
gate_certificate_by_risk("GUT".to_string(), &RiskLevel::Low, 0, 0),
"GUT"
);
assert_eq!(
gate_certificate_by_risk("GUT".to_string(), &RiskLevel::Medium, 0, 0),
"GUT"
);
}
#[test]
fn test_normalize_with_best_practices_produces_module_entry() {
use crate::best_practices::{
BestPracticesAnalysis, ConsoleErrorsAnalysis, VulnerableLibrariesAnalysis,
};
let mut report = AuditReport::new(
"https://example.com".to_string(),
WcagLevel::AA,
WcagResults::new(),
100,
);
report.best_practices = Some(BestPracticesAnalysis {
console_errors: ConsoleErrorsAnalysis {
errors: vec![],
warnings: vec![],
error_count: 0,
warning_count: 0,
},
vulnerable_libraries: VulnerableLibrariesAnalysis {
detected: vec![],
vulnerable: vec![],
has_vulnerabilities: false,
duplicate_libraries: vec![],
},
score: 90,
});
let norm = normalize(&report);
let bp_entry = norm
.normalized
.module_scores
.iter()
.find(|m| m.name == "Best Practices");
assert!(
bp_entry.is_some(),
"Best Practices module score must be present"
);
let entry = bp_entry.unwrap();
assert_eq!(entry.score, 90);
assert!(!entry.contributes_to_overall);
assert!(
norm.raw_best_practices.is_some(),
"raw_best_practices must be passed through"
);
}
#[test]
fn test_vulnerable_libraries_reduce_security_score() {
use crate::best_practices::{
BestPracticesAnalysis, ConsoleErrorsAnalysis, VulnerableLibrariesAnalysis,
VulnerableLibrary,
};
use crate::security::{SecurityAnalysis, SecurityHeaders, SslInfo};
let mut report = AuditReport::new(
"https://example.com".to_string(),
WcagLevel::AA,
WcagResults::new(),
100,
);
report.security = Some(SecurityAnalysis {
score: 80,
grade: "B".to_string(),
headers: SecurityHeaders::default(),
ssl: SslInfo::default(),
issues: vec![],
protection: Default::default(),
sourcemap_leaks: Default::default(),
recommendations: vec![],
});
report.best_practices = Some(BestPracticesAnalysis {
console_errors: ConsoleErrorsAnalysis {
errors: vec![],
warnings: vec![],
error_count: 0,
warning_count: 0,
},
vulnerable_libraries: VulnerableLibrariesAnalysis {
detected: vec![],
vulnerable: vec![
VulnerableLibrary {
name: "jQuery".to_string(),
version: "1.11.3".to_string(),
severity: "high".to_string(),
description: "XSS".to_string(),
safe_version: "3.5.0+".to_string(),
},
VulnerableLibrary {
name: "Lodash".to_string(),
version: "4.17.20".to_string(),
severity: "medium".to_string(),
description: "Prototype pollution".to_string(),
safe_version: "4.17.21+".to_string(),
},
],
has_vulnerabilities: true,
duplicate_libraries: vec![],
},
score: 60,
});
let norm = normalize(&report);
let sec_entry = norm
.normalized
.module_scores
.iter()
.find(|m| m.name == "Security");
assert!(sec_entry.is_some());
assert_eq!(sec_entry.unwrap().score, 57);
}
#[test]
fn test_performance_results_new_fields_serialize() {
use crate::performance::{PerformanceGrade, PerformanceScore, WebVitals};
let perf = PerformanceResults {
vitals: WebVitals::default(),
score: PerformanceScore {
overall: 80,
grade: PerformanceGrade::Gold,
lcp_score: None,
fcp_score: None,
cls_score: None,
interactivity_score: None,
si_score: None,
metrics_available: 0,
size_penalty: None,
js_penalty: None,
request_penalty: None,
dom_penalty: None,
is_capped: None,
},
render_blocking: None,
content_weight: None,
third_party: None,
critical_chain: None,
minification: None,
animations: None,
coverage: None,
measurement_warnings: vec![],
};
let json = serde_json::to_string(&perf).expect("PerformanceResults must serialize");
assert!(!json.contains("\"third_party\""));
assert!(!json.contains("\"minification\""));
assert!(!json.contains("\"coverage\""));
assert!(!json.contains("\"animations\""));
assert!(!json.contains("\"measurement_warnings\""));
assert!(json.contains("\"score\""));
}
#[test]
fn test_unmeasured_performance_excluded_from_overall_score() {
use crate::performance::{PerformanceGrade, PerformanceScore, WebVitals};
let report = AuditReport::new(
"https://example.com".to_string(),
WcagLevel::AA,
WcagResults::new(),
100,
)
.with_performance(PerformanceResults {
vitals: WebVitals::default(),
score: PerformanceScore {
overall: 0,
grade: PerformanceGrade::Bronze,
lcp_score: None,
fcp_score: None,
cls_score: None,
interactivity_score: None,
si_score: None,
metrics_available: 0,
size_penalty: None,
js_penalty: None,
request_penalty: None,
dom_penalty: None,
is_capped: None,
},
render_blocking: None,
content_weight: None,
third_party: None,
critical_chain: None,
minification: None,
animations: None,
coverage: None,
measurement_warnings: vec![],
});
let norm = normalize(&report).normalized;
let perf_entry = norm
.module_scores
.iter()
.find(|m| m.name == "Performance")
.expect("performance module entry must be present");
assert!(!perf_entry.contributes_to_overall);
assert_eq!(perf_entry.measurement_type, "not_measured");
assert_eq!(norm.overall_score, norm.score);
}
#[test]
fn test_viewport_weighted_core_modules_contribute() {
use crate::audit::{ViewportScoreSet, ViewportScores};
use crate::{WcagLevel, WcagResults};
let mut report = AuditReport::new(
"https://example.com".to_string(),
WcagLevel::AA,
WcagResults::new(),
100,
);
report.viewport_scores = Some(ViewportScores {
desktop: ViewportScoreSet {
accessibility: 80,
performance: None,
overall: 80,
},
mobile: ViewportScoreSet {
accessibility: 20,
performance: None,
overall: 20,
},
weighted_overall: 38,
});
let norm = normalize(&report);
assert_eq!(norm.normalized.score, 38);
assert_eq!(
norm.normalized
.module_scores
.iter()
.find(|module| module.name == "Accessibility")
.map(|module| module.score),
Some(38)
);
assert_eq!(
norm.normalized.score_calculation_method,
"viewport_weighted"
);
assert!(norm.normalized.score_breakdown.as_ref().is_some_and(|b| {
b.calculation_note.contains("70% mobile") && b.viewport_blended_accessibility == 38
}));
let names_contributing: Vec<&str> = norm
.normalized
.module_scores
.iter()
.filter(|m| m.contributes_to_overall)
.map(|m| m.name.as_str())
.collect();
assert!(
names_contributing.contains(&"Accessibility"),
"Accessibility must contribute in viewport_weighted mode, got: {:?}",
names_contributing
);
}
#[test]
fn derive_confidence_does_not_downgrade_content_on_hover_rule() {
assert_eq!(
derive_confidence(
"a11y.hover.content_visibility",
"Visuelle Darstellung",
"Schwach"
),
"very_high"
);
}
#[test]
fn derive_false_positive_risk_does_not_flag_content_on_hover_rule() {
assert_eq!(
derive_false_positive_risk(
"a11y.hover.content_visibility",
"Visuelle Darstellung",
"Schwach"
),
"very_low"
);
}
#[test]
fn derive_confidence_still_downgrades_seo_content_subcategory() {
assert_eq!(
derive_confidence("seo.headings.missing_h1", "Content", "issue"),
"medium"
);
assert_eq!(
derive_false_positive_risk("seo.headings.missing_h1", "Content", "issue"),
"medium"
);
}
}