6. Testing & Quality Assurance

Test Coverage Overview

Current Test Coverage: 0%

Overall Test Coverage0 / 100
Unit Test Coverage0 / 100
Integration Test Coverage0 / 100
UI/Widget Test Coverage0 / 100

6.1 Unit Tests

Status: ❌Fail

Findings:

  • No unit tests are present in the codebase
  • Business logic components lack test coverage
  • No test directory structure exists (test/ folder is missing)
  • Critical business logic in models, helpers, and state management is untested
  • Test dependencies commented out in pubspec.yaml (flutter_test is commented out)

Evidence:

  • No test/ directory found in project root
  • No *_test.dart files found in codebase
  • Business logic files in lib/models/, lib/helpers/, lib/states/ have no corresponding tests
  • pubspec.yaml lines 100-101: flutter_test is commented out in dev_dependencies
  • No test dependencies configured (no flutter_test, mockito, mocktail, etc.)
  • Helper functions in lib/helpers/ (e.g., color_helpers.dart, file_helpers.dart, form_helpers.dart, general_helpers.dart, location_helpers.dart, social_login_helpers.dart, widget_helpers.dart) are untested
  • State management classes in lib/states/ (e.g., session_state.dart, connectivity_status.dart, saving_state.dart, user_loyalty_state.dart, selected_gas_station_marker_state.dart, map_state.dart, navigation_menu_state.dart, parameter_state.dart, explainer_state.dart, widget_layout_state.dart) are untested
  • Critical business logic in models (10+ model files) has no test coverage
  • Route models in lib/routes/models/ (20+ files) have no test coverage
  • Singleton classes in lib/singletons/ (11+ singleton classes) have no test coverage

Risk Level: High Risk

Recommendation:

  • Immediate actions:
  • Create test/ directory structure
  • Uncomment and add test dependencies to pubspec.yaml (flutter_test, mockito or mocktail)
  • Create comprehensive unit tests for business logic components
  • Focus on testing models, helpers, utilities, and state management logic
  • Short-term:
  • Use mocking frameworks (e.g., mockito or mocktail) to isolate units under test
  • Test critical business logic in models and route models
  • Test state management classes and their state transitions
  • Test helper functions for edge cases and error handling

6.2 Integration Tests

Status: ❌Fail

Findings:

  • No integration tests exist in the codebase
  • API integration with backend services is untested
  • Database operations (Drift/SQLite) lack integration test coverage
  • No tests for end-to-end user flows
  • OAuth2 authentication flow is untested

Evidence:

  • No integration test files found
  • No integration_test/ directory found
  • Dio singleton (lib/singletons/dio_singleton.dart) has no integration tests
  • Database layer (lib/database/) has no integration tests
  • No test infrastructure for staging environment integration
  • OAuth2 authentication flow (lib/singletons/dio_singleton.dart token refresh logic, lines 73-125) is untested
  • API endpoints defined via Retrofit have no integration test coverage
  • Database operations using Drift/SQLite have no test coverage
  • Route models that interact with API have no integration tests

Risk Level: High Risk

Recommendation:

  • Immediate actions:
  • Create integration test directory structure (integration_test/)
  • Implement integration tests with mock data for API responses
  • Add integration tests that connect to staging environment for real API validation
  • Short-term:
  • Test database operations with in-memory databases
  • Create test fixtures and mock data factories
  • Test critical user journeys (authentication, data synchronization, gas station search, loyalty points, etc.)
  • Test OAuth2 token refresh flow
  • Test API error handling and retry logic

6.3 UI/Widget Tests

Status: ❌Fail

Findings:

  • No widget tests exist in the codebase
  • No golden tests (visual regression tests) are implemented
  • UI components in lib/widgets/ and lib/routes/ are untested
  • No mechanism to detect UI regressions when making changes

Evidence:

  • No widget test files found
  • No golden test files (.png golden files) in test directory
  • Widget components have no test coverage
  • flutter_test is commented out in pubspec.yaml (not available for UI testing)
  • 20+ widget files in lib/widgets/ are untested
  • 20+ route files in lib/routes/ (screen implementations) are untested
  • No visual regression testing to detect UI changes
  • No widget testing framework configured in pubspec.yaml
  • Complex widgets like gas_station.dart, gas_station_bottom_sheet.dart, top_appbar_widget.dart, bottom_navigation_menu.dart have no tests

Risk Level: High Risk

Recommendation:

  • Immediate actions:
  • Uncomment flutter_test in dev_dependencies in pubspec.yaml
  • Implement golden tests (visual regression tests) to ensure UI consistency
  • Create widget tests for reusable components in lib/widgets/
  • Short-term:
  • Use golden_toolkit package for Flutter golden testing
  • Test critical UI flows and screens (login, registration, gas station search, loyalty points, camera, etc.)
  • Set up CI/CD pipeline to run golden tests and detect visual regressions
  • Store golden files in version control for comparison
  • Test widget interactions and user input handling
  • Test state-dependent UI rendering