Enum BrickAssertion 

pub enum BrickAssertion {
    TextVisible,
    ContrastRatio(f32),
    MaxLatencyMs(u32),
    ElementPresent(String),
    Focusable,
    Custom {
        name: String,
        validator_id: u64,
    },
}

Brick assertion that must be verified at runtime.

Assertions are falsifiable hypotheses about the UI state. If any assertion fails, the brick is falsified.

Variants

TextVisible

Text content must be visible (not hidden, not zero-opacity)

ContrastRatio(f32)

WCAG 2.1 AA contrast ratio requirement (4.5:1 for normal text)

MaxLatencyMs(u32)

Maximum render latency in milliseconds

ElementPresent(String)

Element must be present in DOM

Focusable

Element must be focusable for accessibility

Custom

Custom assertion with name and validation function ID

Fields

name: String

Assertion name for error reporting

validator_id: u64

Validation function identifier

Implementations

impl BrickAssertion

pub const fn text_visible() -> BrickAssertion

Create a text visibility assertion

pub const fn contrast_ratio(ratio: f32) -> BrickAssertion

Create a contrast ratio assertion (WCAG 2.1 AA)

pub const fn max_latency_ms(ms: u32) -> BrickAssertion

Create a max latency assertion

pub fn element_present(selector: impl Into<String>) -> BrickAssertion

Create an element presence assertion

Trait Implementations

impl Clone for BrickAssertion

fn clone(&self) -> BrickAssertion

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for BrickAssertion

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl PartialEq for BrickAssertion

fn eq(&self, other: &BrickAssertion) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for BrickAssertion