Dart Testing Suite

Contents

• Unit Testing
• Mocking Dependencies
• Test Coverage
• Workflow: Testing Execution

Unit Testing

Utilize package:test as the standard testing library for Dart CLI and backend applications.

• Organize test files to mirror the lib directory structure. Append _test.dart to test files.
• Group related tests using the group() function.
• Use setUp() and tearDown() for shared test state.
• Write pure logic inside Domain/BLoC and extract to static pure functions for 100% unit test coverage.
• Use string interpolation for test group names: group('$ClassName', ...)
• Structure each test using the Arrange-Act-Assert (Given-When-Then) convention:
  • Arrange: Set up mocks, create instances, prepare input data.
  • Act: Call the method under test.
  • Assert: Verify the output or side effects.
• Separate setup from verification to keep tests readable and maintainable.