Mockingbird makes it easy to mock, stub, and verify objects in Swift unit tests. You can test both Swift and Objective-C without writing any boilerplate or modifying production code.

Visit MockingbirdSwift.com for quick start guides, walkthroughs, and API reference articles.

Automatically generating mocks.

$ mockingbird configure BirdTests -- --target Bird

Manually generating mocks.

$ mockingbird generate --testbundle BirdTests --target Bird --output Mocks.generated.swift

Using Mockingbird in tests.

// Mocking
let bird = mock(Bird.self)

// Stubbing
given(bird.canFly).willReturn(true)

// Verification
verify(bird.fly()).wasCalled()

Please read the contributing guide to learn about reporting bugs, developing features, and submitting code changes.

Mockingbird is MIT licensed. By contributing to Mockingbird, you agree that your contributions will be licensed under its MIT license.