Expand test coverage for controllers and services

[CybotTM]

Description

Currently, the extension has limited test coverage (~25%) with tests only for domain models. We need comprehensive test coverage for controllers, services, commands, and repositories.

Current State

Tested (4 files):

• Domain models only (Component, Environment, Translation, Type)

Not Tested:

• Controllers (TranslationController)
• Services (TranslationService, ImportService)
• ViewHelpers (TextdbViewHelper, TranslateViewHelper)
• Command classes (ImportCommand)
• Repositories (query methods)

Proposed Changes

1. Controller Tests

• Tests/Unit/Controller/TranslationControllerTest.php
• Test all actions: list, translated, translateRecord, import, export
• Mock dependencies (repositories, services)

2. Service Tests

• Tests/Unit/Service/TranslationServiceTest.php
• Tests/Unit/Service/ImportServiceTest.php
• Test business logic and error handling

3. Functional Tests

• Tests/Functional/Domain/Repository/ - Test repository queries
• Tests/Functional/Service/ - Test import/export workflows
• Use fixtures and database state

4. ViewHelper Tests

• Tests/Unit/ViewHelpers/TextdbViewHelperTest.php
• Tests/Unit/ViewHelpers/TranslateViewHelperTest.php

Acceptance Criteria

• Test coverage reaches 60%+
• All controllers have unit tests
• All services have unit tests with mocking
• Functional tests for import/export workflows
• Repository query methods have functional tests
• PHPUnit configuration for functional tests exists
• CI pipeline runs all tests successfully

Priority

High - Improves code quality and prevents regressions

Related

TYPO3 Conformance Report: Testing Standards score 17/20 (can reach 20/20 with proper coverage)