Testing

Phexium employs a three-level testing strategy: unit tests, integration tests, and acceptance tests.

In This Section

Strategy Overview - Testing philosophy and approach
Unit Testing - Pest PHP unit tests
Integration Testing - Component integration tests
Acceptance Testing (Behat) - BDD acceptance tests
Test Doubles - Fakes and spies for isolated testing
Mutation Testing - Test quality verification

Test Categories

Type	Framework	Location	Purpose
Unit	Pest PHP	`tests/*/Unit/`	Isolated class testing
Integration	Pest PHP	`tests/*/Integration/`	Component interactions
Acceptance	Behat	`tests/*/Acceptance/`	User scenarios (BDD)

Running Tests

# Unit tests
task tests:unit

# Integration tests
task tests:integration

# Acceptance tests
task tests:acceptance              # All implementations
task tests:acceptance:inmemory     # Fastest (no database)

# All tests with merged coverage
task tests:all

# Mutation testing
task tests:mutation

Code Coverage

The merged code coverage report is published on GitLab Pages after each CI pipeline run on the trunk branch.

View coverage report:

To generate the report locally:

task tests:coverage:merge

The HTML report is generated in public/debug/code-coverage/.

Configuration Files

phpunit.xml - Pest/PHPUnit configuration
behat.yml - Behat acceptance test suites
tests/Pest.php - Pest bootstrap