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‎action-plans/01-enhance-test-infrastructure.md‎

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# Action Plan: Enhance Test Infrastructure
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**Priority**: 1 (Highest)
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**Estimated Effort**: High
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**Dependencies**: None
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**Risk Level**: Low
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## Objective
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Establish a comprehensive test infrastructure for the TeamSpeak 3 Java API library to ensure code reliability and enable safe refactoring for future improvements.
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## Rationale
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The current test coverage is critically insufficient (~1%) with only basic command string building tests. This creates significant risks:
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1. **No Safety Net**: Major refactoring or upgrades could introduce regressions
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2. **Poor Code Quality Assurance**: No validation of core functionality
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3. **Integration Gaps**: No testing of actual TeamSpeak server interactions
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4. **Maintenance Burden**: Difficult to verify changes don't break existing functionality
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## Current State Analysis
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- **Existing Tests**: Only `FileCommandsTest.java` with basic command building validation
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- **Test Framework**: JUnit 4.13.2 (outdated)
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- **Coverage Areas**: Command string generation only
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- **Missing Areas**: API methods, event system, connection management, error handling, integration tests
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## Implementation Plan
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### Phase 1: Upgrade Test Framework
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1. **Upgrade to JUnit 5**
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- Update Maven dependencies
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- Migrate existing test to JUnit 5 syntax
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- Configure Maven Surefire plugin for JUnit 5
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2. **Add Modern Testing Dependencies**
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- Mockito for mocking
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- AssertJ for fluent assertions
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- TestContainers for integration testing
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- WireMock for HTTP mocking if needed
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### Phase 2: Unit Test Coverage
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1. **Command Classes Testing**
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- Expand FileCommandsTest coverage
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- Create tests for ClientCommands, QueryCommands, ChannelCommands, etc.
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- Test parameter validation and command string generation
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2. **Wrapper Classes Testing**
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- Test all wrapper classes (Client, Channel, VirtualServer, etc.)
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- Validate data parsing and getter methods
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- Test edge cases and null handling
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3. **API Classes Testing**
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- Mock-based tests for TS3Api and TS3ApiAsync
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- Test method delegation and parameter validation
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- Test error handling and exception propagation
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4. **Event System Testing**
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- Test event creation and firing
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- Test listener registration and removal
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- Test event adapter functionality
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### Phase 3: Integration Test Framework
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1. **TestContainers Setup**
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- Create TeamSpeak server container configuration
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- Implement test lifecycle management
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- Create base integration test class
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2. **Connection Testing**
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- Test connection establishment and teardown
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- Test reconnection scenarios
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- Test timeout handling
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3. **End-to-End API Testing**
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- Test complete workflows (connect, login, execute commands)
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- Test file transfer operations
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- Test event subscription and handling
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### Phase 4: Test Utilities and Helpers
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1. **Test Data Builders**
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- Create builders for common test objects
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- Implement test data factories
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- Create assertion helpers
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2. **Mock Configurations**
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- Pre-configured mocks for common scenarios
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- Mock response builders
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- Error scenario mocks
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## Acceptance Criteria
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- [ ] JUnit 5 migration completed
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- [ ] Modern testing dependencies added and configured
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- [ ] Unit test coverage > 80% for core classes
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- [ ] Integration test framework established with TestContainers
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- [ ] All command classes have comprehensive tests
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- [ ] All wrapper classes have validation tests
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- [ ] Event system fully tested
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- [ ] Connection management tested
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- [ ] Test utilities and helpers implemented
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- [ ] CI/CD pipeline updated for new test structure
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## Technical Specifications
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### Dependencies to Add
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```xml
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<!-- JUnit 5 -->
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<dependency>
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<groupId>org.junit.jupiter</groupId>
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<artifactId>junit-jupiter</artifactId>
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<version>5.10.1</version>
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<scope>test</scope>
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</dependency>
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<!-- Mockito -->
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<dependency>
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<groupId>org.mockito</groupId>
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<artifactId>mockito-core</artifactId>
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<version>5.7.0</version>
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<scope>test</scope>
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</dependency>
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<!-- AssertJ -->
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<dependency>
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<groupId>org.assertj</groupId>
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<artifactId>assertj-core</artifactId>
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<version>3.24.2</version>
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<scope>test</scope>
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</dependency>
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<!-- TestContainers -->
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<dependency>
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<groupId>org.testcontainers</groupId>
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<artifactId>junit-jupiter</artifactId>
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<version>1.19.3</version>
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<scope>test</scope>
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</dependency>
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```
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### Test Structure
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```
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src/test/java/
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├── com/github/theholywaffle/teamspeak3/
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│ ├── commands/ # Command building tests
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│ ├── api/ # API method tests
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│ ├── wrapper/ # Wrapper class tests
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│ ├── event/ # Event system tests
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│ ├── integration/ # Integration tests
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│ └── util/ # Test utilities
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```
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## Risk Mitigation
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- **Backward Compatibility**: Ensure existing functionality remains unchanged
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- **Performance Impact**: Monitor test execution time and optimize as needed
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- **CI/CD Integration**: Update build pipelines to handle new test structure
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- **Documentation**: Update README with testing guidelines
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## Success Metrics
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- Test coverage increased from ~1% to >80%
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- All critical paths covered by tests
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- Integration test suite operational
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- Zero regression issues during implementation
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- Improved developer confidence in making changes
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## Next Steps
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After completion, this enhanced test infrastructure will enable:
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- Safe Java version upgrades
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- Confident dependency updates
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- Code refactoring and improvements
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- Feature additions with regression protection

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