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App-Test-Generator-0.41

Changes for version 0.41 - 2026-06-28

  • Bug fixes
    • Fix bin/test-generator-mutate's per-mutant prove invocation: switch from a workspace-copy + PERL5LIB strategy to in-place mutation of the project's own lib/ file (with save/restore) plus prove -l. The previous approach injected the mutated workspace via PERL5LIB, but test files that use 'use lib "$Bin/../lib"' (a common CPAN idiom) call unshift @INC at compile time, which prepends the project's actual lib/ before the PERL5LIB workspace path. Every test then loaded the original code instead of the mutant, making all 403 mutants survive and producing a 0% kill rate. In-place mutation writes the mutant directly to lib/, so every @INC strategy (PERL5LIB, -l, 'use lib "$Bin/../lib"') sees the mutated code. prove -l is used so tests that rely on -Ilib rather than 'use lib' also find the module. The workspace is retained as a staging area for the compile check; the original file is restored after every prove run regardless of outcome.

Documentation

README.md
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
test-generator-index
Test coverage dashboard generator
test-generator-mutate
Run mutation testing against a Perl test suite

Modules

doc/SchemaExtractor.pm
App::Test::Generator
Fuzz Testing, Mutation Testing, LCSAJ Metrics and Test Dashboard for Perl modules
App::Test::Generator::CoverageGuidedFuzzer
AFL-style coverage-guided fuzzing for App::Test::Generator
App::Test::Generator::Exporter::YAML
Serialise a test plan to YAML
App::Test::Generator::LCSAJ
Static LCSAJ extraction for Perl
App::Test::Generator::LCSAJ::Coverage
Merge LCSAJ path data with runtime hits
App::Test::Generator::Model::Method
Evidence-based model of a single method under test
App::Test::Generator::Mutation::BooleanNegation
Negate boolean return expressions to expose missing assertion coverage
App::Test::Generator::Mutation::ReturnUndef
Replace return expressions with undef to expose missing undef-return checks in the test suite
App::Test::Generator::Mutator
Generate and apply mutation tests
App::Test::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::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::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::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::TestStrategy
in lib/App/Test/Generator/TestStrategy.pm

Other files