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VibeTunnel iOS Testing Approach

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Overview

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Test Structure

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1. Standalone Tests (StandaloneTests.swift)

• API endpoint construction
• JSON encoding/decoding
• WebSocket binary protocol
• Model validation
• Data persistence patterns

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2. Mock-Based Tests (Future Implementation)

• MockAPIClient - Full API client mock with response configuration
• MockURLProtocol - Network request interception
• MockWebSocketTask - WebSocket connection mocking

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Running Tests

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Command Line

cd ios
swift test              # Run all tests
swift test --parallel   # Run tests in parallel
swift test --filter Standalone  # Run specific test suite

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CI/CD

1. Swift tests run using swift test
2. iOS app builds separately to ensure compilation

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Test Categories

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Critical Tests (.tags(.critical))

• Core API functionality
• Connection management
• Essential data models

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Networking Tests (.tags(.networking))

• HTTP request/response handling
• Error scenarios
• URL construction

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WebSocket Tests (.tags(.websocket))

• Binary protocol parsing
• Message handling
• Connection lifecycle

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Model Tests (.tags(.models))

• Data encoding/decoding
• Model validation
• Computed properties

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Persistence Tests (.tags(.persistence))

• UserDefaults storage
• Connection state restoration
• Data migration

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Why This Approach?

1. Xcode Project Limitations: The iOS app uses an Xcode project which doesn’t easily integrate with Swift Testing when running via SPM.
2. Swift Testing Benefits: Using the modern Swift Testing framework provides:
   • Better async/await support
   • Parallel test execution
   • Expressive assertions with #expect
   • Tag-based organization
3. Standalone Tests: By testing concepts rather than importing the app module directly, we can:
   • Run tests via SPM
   • Verify core logic independently
   • Maintain fast test execution

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Future Improvements

1. Xcode Test Target: Add a proper test target to the Xcode project to enable testing of actual app code.
2. Integration Tests: Create integration tests that run against a mock server.
3. UI Tests: Add XCUITest target for end-to-end testing.
4. Code Coverage: Enable coverage reporting once tests can import the app module.

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Adding New Tests

1. Add test functions to StandaloneTests.swift or create new test files
2. Use appropriate tags for organization
3. Follow the pattern:
   Copy

   @Test("Description of what is being tested")
   func testFeature() {
       // Arrange
       let input = ...
       
       // Act
       let result = ...
       
       // Assert
       #expect(result == expected)
   }
   

4. Run tests locally before committing
5. Ensure CI passes