Struct TarantulaIntegration 

pub struct TarantulaIntegration;

Tarantula integration wrapper (pmat-style)

Provides high-level interface for fault localization that integrates with cargo-llvm-cov for coverage and pmat for TDG enrichment.

Toyota Way Principles

• Genchi Genbutsu: Uses actual coverage data, not estimates
• Muda: Avoids waste by reusing existing coverage tools
• Jidoka: Provides human-readable explanations

Implementations

impl TarantulaIntegration

pub fn is_coverage_tool_available() -> bool

Check if cargo-llvm-cov is available

pub fn parse_lcov_output(content: &str) -> Result<Vec<(StatementId, usize)>>

Parse LCOV format output from cargo-llvm-cov

pub fn run_localization( passed_coverage: &[(StatementId, usize)], failed_coverage: &[(StatementId, usize)], total_passed: usize, total_failed: usize, config: &LocalizationConfig, ) -> FaultLocalizationResult

Run fault localization on coverage data

Arguments

• passed_coverage - Coverage from passing tests
• failed_coverage - Coverage from failing tests
• total_passed - Number of passing tests
• total_failed - Number of failing tests
• config - Localization configuration

pub fn generate_report( result: &FaultLocalizationResult, format: ReportFormat, ) -> Result<String>

Generate report in specified format

pub fn enrich_with_tdg( result: &mut FaultLocalizationResult, tdg_scores: &HashMap<String, f32>, )

Enrich fault localization results with TDG scores from pmat

Arguments

• result - Mutable reference to localization result
• tdg_scores - Map of file path to TDG score

pub fn collect_coverage<P: AsRef<Path>>( repo_path: P, test_filter: Option<&str>, ) -> Result<String>

Run cargo-llvm-cov and collect coverage for a test run

Arguments

• repo_path - Path to repository
• test_filter - Optional test filter pattern

Returns

LCOV format coverage data as string