Struct CoverageAnalyzer 

pub struct CoverageAnalyzer { /* private fields */ }

Test coverage analyzer

Implementations

impl CoverageAnalyzer

pub fn new() -> Self

Create a new coverage analyzer with default configuration

pub fn with_config(config: CoverageConfig) -> Self

Create a new coverage analyzer with custom configuration

pub fn check_tarpaulin_installed(&self) -> Result<bool>

Check if cargo-tarpaulin is installed

Errors

Returns an error if the cargo command cannot be executed.

pub async fn install_tarpaulin(&self) -> Result<()>

Install cargo-tarpaulin if not already installed

Errors

Returns an error if cargo install fails to run or the installation process exits with a non-zero status.

pub async fn run_coverage(&self, project_path: &Path) -> Result<CoverageReport>

Run test coverage analysis

Errors

Returns an error if cargo-tarpaulin is not installed, the tarpaulin command fails, or the output cannot be parsed.

pub fn config(&self) -> &CoverageConfig

Get config reference

pub async fn run_tarpaulin(&self, project_path: &Path) -> Result<CoverageReport>

Run tarpaulin and get coverage report

This is a convenience wrapper around run_coverage that’s more explicit about running tarpaulin

Errors

Returns an error if cargo-tarpaulin is not installed or the coverage run fails.

pub fn parse_coverage_report( &self, tarpaulin_output: &str, ) -> Result<CoverageReport>

Parse a coverage report from tarpaulin output

Parses the JSON output from cargo-tarpaulin and converts it to our CoverageReport format

Errors

Returns an error if the JSON output cannot be parsed.

pub fn enforce_minimum_coverage( &self, report: &CoverageReport, threshold: f64, ) -> Result<()>

Enforce minimum coverage threshold

Returns an error if the coverage is below the specified threshold.

Errors

Returns a validation error if report.line_coverage is below threshold.

pub fn generate_coverage_badge(&self, report: &CoverageReport) -> String

Generate a coverage badge SVG

Creates an SVG badge showing the current test coverage percentage

impl CoverageAnalyzer

pub fn validate_coverage(&self, report: &CoverageReport) -> Result<()>

Validate coverage meets minimum thresholds

Errors

Returns a validation error if any coverage metric falls below its configured minimum threshold and fail_on_low_coverage is enabled.

pub fn format_coverage_report(&self, report: &CoverageReport) -> String

Generate a human-readable coverage report

pub async fn check_project_coverage(&self, project_path: &Path) -> Result<()>

Check coverage for a project

Errors

Returns an error if the coverage run fails or coverage is below the configured minimum thresholds.

Trait Implementations

impl Default for CoverageAnalyzer

fn default() -> Self

Returns the “default value” for a type.