Project and gem structure

LesliTesting does not generate files or impose a custom test layout. It works with conventional Rails and Ruby gem structures.

Rails application structure

my_application/
├── app/
├── config/
├── lib/
├── test/
│   ├── controllers/
│   ├── fixtures/
│   │   └── files/
│   ├── helpers/
│   ├── integration/
│   ├── models/
│   ├── system/
│   └── test_helper.rb
└── Gemfile

Configure LesliTesting.app in test/test_helper.rb. Rails continues to discover tests and fixtures using its normal conventions.

Rails engine structure

my_engine/
├── app/
├── config/
├── db/
│   └── migrate/
├── lib/
│   ├── my_engine.rb
│   └── my_engine/
│       ├── engine.rb
│       └── version.rb
├── test/
│   ├── dummy/
│   │   ├── config/
│   │   └── db/
│   ├── fixtures/
│   │   └── files/
│   ├── integration/
│   ├── models/
│   ├── test_helper.rb
│   └── my_engine_test.rb
├── my_engine.gemspec
└── Rakefile

The dummy application supplies the Rails runtime used by the engine tests. Configure LesliTesting.engine in the engine's test/test_helper.rb.

Standalone Ruby gem structure

my_gem/
├── lib/
│   ├── my_gem.rb
│   └── my_gem/
│       └── version.rb
├── test/
│   ├── test_helper.rb
│   └── my_gem_test.rb
├── Gemfile
├── my_gem.gemspec
└── Rakefile

Configure LesliTesting.gem before requiring the gem's main file so that coverage observes its source.

LesliTesting repository structure

The main implementation is organized by responsibility:

LesliTesting/
├── docs/
│   ├── images/
│   └── *.md
├── lib/
│   ├── minitest/
│   │   └── lesli_testing_plugin.rb
│   ├── lesli_testing.rb
│   └── lesli_testing/
│       ├── helpers/
│       │   └── response_integration_helper.rb
│       ├── minitest/
│       │   └── cli_reporter.rb
│       ├── simplecov/
│       │   └── profiles.rb
│       ├── coverage.rb
│       ├── engine.rb
│       ├── fixtures.rb
│       ├── testers.rb
│       └── version.rb
├── test/
│   ├── test_helper.rb
│   ├── demo_test.rb
│   └── performance_test.rb
├── lesli_testing.gemspec
└── Rakefile

Path	Responsibility
`lib/lesli_testing.rb`	Public `app`, `engine`, and `gem` configuration API.
`lib/minitest/lesli_testing_plugin.rb`	Registers the custom reporter with Minitest.
`lib/lesli_testing/minitest/cli_reporter.rb`	Per-test output, summaries, and failure formatting.
`lib/lesli_testing/coverage.rb`	Starts SimpleCov and configures its formatters and threshold.
`lib/lesli_testing/simplecov/profiles.rb`	Application, engine, and gem coverage profiles.
`lib/lesli_testing/engine.rb`	Rails initializer source for adding Lesli migration paths when this optional file is loaded.
`lib/lesli_testing/testers.rb`	Shared Rails test base classes.
`lib/lesli_testing/fixtures.rb`	Shared Lesli fixture integration.
`lib/lesli_testing/helpers/response_integration_helper.rb`	JSON integration-response assertions and parsing.
`test/demo_test.rb`	Intentional failures for visually inspecting reporter output.
`test/performance_test.rb`	Lightweight reporter execution tests.

See Testing tools for the behavior exposed by these components.

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Last Update: 2026/09/27