Testing Dart Applications

Contents

• Core Testing Principles
• Test Implementation Guidelines
• Mocking and Isolation
• Running Tests
• Workflows
• Examples
• Related Skills

Core Testing Principles

Apply the appropriate testing strategy based on the target environment and scope:

• Unit Tests: Verify the smallest piece of testable software (functions, methods, classes). Maximize coverage here.
• Component/Widget Tests: Verify that a component (multiple classes or Flutter Widgets) behaves as expected. Use mock objects to mimic user actions and events.
• Integration/End-to-End Tests: Verify the behavior of an entire app or large subsystem on a simulated/real device or browser.