Testing Strategies

The apko project employs a comprehensive testing suite to ensure its robustness and reliability. This section outlines the various testing approaches utilized, including unit testing, integration testing, and end-to-end testing.

Unit Testing

Unit tests focus on verifying the functionality of individual components or units of code in isolation. They are designed to be quick, isolated, and highly focused on specific functionality.

Examples:

• Testing individual functions or methods within a module.
• Verifying input validation and error handling.
• Testing the logic of individual data structures.

Source: tree/main/pkg

Code Examples:

• pkg/build/build_test.go
• pkg/build/source_test.go

Integration Testing

Integration tests verify the interactions and communication between different components or units of code. They ensure that these components work together as expected.

Examples:

• Testing the flow of data between modules or services.
• Verifying interactions with external systems or dependencies.
• Testing the integration of different APIs or libraries.

Source: tree/main/pkg

Code Examples:

• pkg/build/build_test.go

End-to-End Testing

End-to-end tests simulate real-world usage scenarios by testing the entire system from beginning to end. They ensure that the application functions as expected in a complete and integrated environment.

Examples:

• Testing the entire workflow of a user interaction, from input to output.
• Simulating network conditions and potential failures.
• Verifying the functionality of the application in a production-like environment.

Source: tree/main/test

Code Examples:

• test/integration_test.go

Test Runner

The apko project utilizes go test for running tests.

Source: https://pkg.go.dev/testing

Code Examples:

• test/test_helper.go

Best Practices

• Use descriptive and meaningful test names.
• Keep tests focused and isolated.
• Follow the principles of Test-Driven Development (TDD).
• Use mocks and stubs to isolate dependencies.
• Employ test coverage tools to ensure adequate test coverage.

Source: CONTRIBUTING.md