ci: switch test workflows to MariaDB

[nielsdrost7]

Motivation

• The CI was using an SQLite in-memory setup which produced SQL errors for queries like SHOW TABLES, so tests should run against MariaDB/MySQL in GitHub Actions to match production behavior.
• Ensure workflows that run migrations, seeds or full tests have a consistent MySQL/MariaDB service and the correct PDO extension installed so CI test runs succeed.

Description

• Replaced SQLite testing defaults with MySQL settings in .env.testing.example by setting DB_CONNECTION=mysql and adding DB_HOST, DB_PORT, DB_DATABASE, DB_USERNAME, and DB_PASSWORD.
• Updated phpunit.xml and phpunit.smoke.xml to use MySQL connection environment variables instead of SQLite :memory:.
• Modified GitHub Actions workflows (.github/workflows/phpunit.yml, smoke.yml, quickstart.yml, composer-update.yml, setup.yml, yarn-update.yml) to add a MariaDB service (image mariadb:11), expose matching DB_* env vars, and use a MariaDB-friendly healthcheck.
• Replaced sqlite with pdo_mysql in the action defaults and workflow PHP extension lists and updated .github/actions/setup-php-composer/action.yml to default to pdo_mysql.
• Updated documentation in .github/RUNNING_TESTS.md to reflect the MariaDB/MySQL-backed PHPUnit configuration.

Testing

• Loaded all workflow YAML files with ruby -e 'require "yaml"; ...' and parsing succeeded for every .github/workflows/*.yml.
• Ran composer validate --no-check-publish and it passed (Composer schema warnings remain but are unrelated to this change).
• Verified with rg that the previous SQLite in-memory configuration was removed from phpunit.xml, phpunit.smoke.xml, .env.testing.example and workflows (no remaining SQLite test configuration in checked files).
• Attempted composer install and php artisan test --env=testing locally but these were blocked: composer install failed due to the container PHP version (8.5.7-dev) incompatible with locked phpoffice/phpspreadsheet constraints, and php artisan test could not run because vendor/ was not available.

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Codex Task

Summary by CodeRabbit

• Chores

  • Updated testing infrastructure to use MySQL/MariaDB instead of SQLite for improved compatibility with production environment configurations.

• Tests

  • Updated GitHub Actions workflows and PHPUnit configurations to align with new database setup.

[nielsdrost7]

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 1bb24ba3-95f2-42a4-b59a-926b60638e72

📥 Commits

Reviewing files that changed from the base of the PR and between 8a2500c and b4d4b11.

📒 Files selected for processing (5)

• .github/RUNNING_TESTS.md
• .github/workflows/phpunit.yml
• .github/workflows/quickstart.yml
• .github/workflows/smoke.yml
• .github/workflows/yarn-update.yml

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📝 Walkthrough

Walkthrough

This PR migrates the test infrastructure from in-memory SQLite to MySQL/MariaDB, updating PHPUnit configurations, GitHub Actions workflows with database services, PHP extensions, and documentation across the entire testing pipeline.

Changes

SQLite to MySQL Testing Infrastructure

Layer / File(s)	Summary
Test Configuration and Documentation phpunit.xml, phpunit.smoke.xml, .github/RUNNING_TESTS.md	Test environment files switch from SQLite in-memory (:memory:) to MySQL with explicit DB_HOST, DB_PORT, DB_DATABASE, DB_USERNAME, and DB_PASSWORD variables. Documentation is updated to reference MySQL configuration instead of SQLite.
PHP MySQL Driver Extensions .github/actions/setup-php-composer/action.yml, .github/workflows/composer-update.yml, .github/workflows/setup.yml, .github/workflows/smoke.yml, .github/workflows/yarn-update.yml	Composite action default and all workflow steps are updated to load pdo_mysql for MySQL connectivity and remove previous sqlite, pdo_sqlite, and mysql extensions.
CI Workflows - MySQL Service and Database Connection .github/workflows/composer-update.yml, .github/workflows/setup.yml, .github/workflows/phpunit.yml, .github/workflows/quickstart.yml, .github/workflows/smoke.yml	All CI workflows provision a MariaDB 11 service container with port 3306 exposed and health-check configured, and inject job-level environment variables for database connection (host, port, database, username, password).

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~12 minutes

Possibly related PRs

• InvoicePlane/InvoicePlane-v2#295: Reverses the database migration by switching phpunit.xml and CI workflows back from MariaDB/MySQL to SQLite in-memory.
• InvoicePlane/InvoicePlane-v2#468: Updates GitHub Actions test workflows to run against MariaDB/MySQL service and adjusts PHP extensions in the same workflow files.

Poem

🐰 From memory's fleeting SQLite dance,
We hop to MySQL's steady stance,
Extensions configured, services awake,
A database foundation for tests to make,
In workflows coordinated, credentials in place,
The testing grounds now embrace the pace.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately and specifically summarizes the main change—migrating test workflows from SQLite to MariaDB for database testing consistency.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch codex/switch-github-actions-to-mariadb-or-mysql

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Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In @.github/RUNNING_TESTS.md:
- Line 173: The sentence "Uses MariaDB/MySQL via the testing database settings
in `.env.testing.example`" is misleading because PHPUnit uses DB_* values
defined in phpunit.xml and phpunit.smoke.xml; update that line to state PHPUnit
reads DB_* from those XML files (phpunit.xml/phpunit.smoke.xml) and that
`.env.testing.example` is only an example/local reference for other tooling, not
the source of PHPUnit DB configuration.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 853f3b70-1c1f-41fa-a5e5-ff173e99e39d

📥 Commits

Reviewing files that changed from the base of the PR and between ad4cb74 and 8a2500c.

📒 Files selected for processing (11)

• .env.testing.example
• .github/RUNNING_TESTS.md
• .github/actions/setup-php-composer/action.yml
• .github/workflows/composer-update.yml
• .github/workflows/phpunit.yml
• .github/workflows/quickstart.yml
• .github/workflows/setup.yml
• .github/workflows/smoke.yml
• .github/workflows/yarn-update.yml
• phpunit.smoke.xml
• phpunit.xml