testing-patterns

The test pyramid balances fast unit tests against fewer integration tests. Apply testing patterns based on scope: use unit tests for logic, integration tests for interactions, and mocks to isolate dependencies during software quality checks.

Structure unit tests using the AAA pattern by organizing code into Arrange, Act, and Assert sections. This pattern clarifies setup, execution, and verification steps, making tests easier to read and maintain across different testing frameworks.

Use mocking in unit tests to isolate the component under test from external dependencies. Use integration tests without mocks to verify real interactions between modules, choosing strategies that improve test quality and maintain reliable test suites.

Organize test suites for a new feature by applying pyramid principles and the AAA pattern. Balance unit and integration tests, use mocking where appropriate, and align with common testing frameworks to ensure fast feedback and maintainability.

Test suites slow development when poorly structured. Fix this by applying core testing patterns: prioritize fast unit tests at the pyramid base, isolate dependencies with mocks, and reserve slower integration tests for critical paths.

No specific framework is required. The testing patterns, including pyramid principles, AAA structure, and mock types, align with common testing frameworks, letting you apply strategies across software projects and teams without framework restrictions.