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App-Test-Generator-0.32

Changes for version 0.32 - 2026-04-12

  • Added detect_scattered_failures() root cause detector. Surfaces a weak-confidence advisory when failures and passes coexist across 2 or more common Perl series with no detectable version cliff or OS pattern, suggesting flaky tests, optional dependency differences, or CGI environment assumptions rather than a compatibility issue. Complements detect_universal_failure() which handles the opposite case of near-total failure. Confidence is intentionally set to 0.40 (Weak) since this is a catch-all signal rather than a precise diagnosis, ensuring it appears below stronger signals in the root causes table when multiple detectors fire simultaneously.
  • Added detect_universal_failure() root cause detector. Surfaces a high-confidence warning when failures occur across 3 or more distinct Perl versions and 2 or more OS types with fewer than 10% passing reports, indicating a likely broken release rather than a version- or platform-specific compatibility issue. Likely causes listed in evidence: missing file in tarball, broken Makefile.PL, or undeclared dependency. Integrated into detect_root_causes() where it is evaluated first and sorted by confidence alongside the existing OS, locale, and Perl version cliff detectors.
  • Fixed blib/ paths appearing in coverage table instead of lib/ paths. Devel::Cover instruments blib/ during testing; paths are now normalised to lib/ for display, with deduplication against any native lib/ entry.
  • Fixed structural coverage percentages in Executive Summary and Structural Coverage sections showing ~24% instead of ~93%. _coverage_totals now aggregates from individual own-project files rather than Devel::Cover's pre-aggregated Total key which includes all instrumented CPAN dependencies.
  • Fixed cyclomatic complexity badge colour and tooltip inverted. High complexity now correctly shows red/Needs improvement; low complexity shows green/Good. Second condition also fixed to use $complexity rather than $score.

Documentation

README.md
app-test-generator-mutate
Run mutation testing against a Perl test suite
demo_extractor.pl
Demonstrate the schema extractor
extract-schemas
Extract test schemas from Perl modules
extract-schemas2
Extract schemas and optionally emit Perl tests
fuzz-harness-generator
Generate fuzzing + corpus-based test harnesses from test schemas
generate_index.pl
Test coverage dashboard generator

Modules

doc/SchemaExtractor.pm
App::Test::Generator
Generate fuzz and corpus-driven test harnesses from test schemas
App::Test::Generator::CoverageGuidedFuzzer
AFL-style coverage-guided fuzzing for App::Test::Generator
lib/App/Test/Generator/Exporter/YAML.pm
App::Test::Generator::LCSAJ
Static LCSAJ extraction for Perl
App::Test::Generator::Mutator
Generate mutation tests
Test::App::Generator::Sample::Module
Example module for schema extraction testing
App::Test::Generator::SchemaExtractor
Extract test schemas from Perl modules
App::Test::Generator::Template
Template for the test files generated by App::Test::Generator
Devel::App::Test::Generator::LCSAJ::Runtime
Debugger backend for LCSAJ coverage

Provides

App::Test::Generator::Analyzer::Complexity
in lib/App/Test/Generator/Analyzer/Complexity.pm
App::Test::Generator::Analyzer::Return
in lib/App/Test/Generator/Analyzer/Return.pm
App::Test::Generator::Analyzer::ReturnMeta
in lib/App/Test/Generator/Analyzer/ReturnMeta.pm
App::Test::Generator::Analyzer::SideEffect
in lib/App/Test/Generator/Analyzer/SideEffect.pm
App::Test::Generator::Emitter::Perl
in lib/App/Test/Generator/Emitter/Perl.pm
App::Test::Generator::LCSAJ::Coverage
in lib/App/Test/Generator/LCSAJ/Coverage.pm
App::Test::Generator::Model::Method
in lib/App/Test/Generator/Model/Method.pm
App::Test::Generator::Mutant
in lib/App/Test/Generator/Mutant.pm
App::Test::Generator::Mutation::Base
in lib/App/Test/Generator/Mutation/Base.pm
App::Test::Generator::Mutation::BooleanNegation
in lib/App/Test/Generator/Mutation/BooleanNegation.pm
App::Test::Generator::Mutation::ConditionalInversion
in lib/App/Test/Generator/Mutation/ConditionalInversion.pm
App::Test::Generator::Mutation::NumericBoundary
in lib/App/Test/Generator/Mutation/NumericBoundary.pm
App::Test::Generator::Mutation::ReturnUndef
in lib/App/Test/Generator/Mutation/ReturnUndef.pm
App::Test::Generator::Pipeline
in lib/App/Test/Generator/Pipeline.pm
App::Test::Generator::Planner
in lib/App/Test/Generator/Planner.pm
App::Test::Generator::Planner::Fixture
in lib/App/Test/Generator/Planner/Fixture.pm
App::Test::Generator::Planner::Grouping
in lib/App/Test/Generator/Planner/Grouping.pm
App::Test::Generator::Planner::Isolation
in lib/App/Test/Generator/Planner/Isolation.pm
App::Test::Generator::Planner::Mock
in lib/App/Test/Generator/Planner/Mock.pm
App::Test::Generator::Report::HTML
in lib/App/Test/Generator/Report/HTML.pm
App::Test::Generator::TestStrategy
in lib/App/Test/Generator/TestStrategy.pm

Other files