Firebase Testing Support is a collection of libraries that provide type definitions and tools required for writing tests for code that uses Firebase, e.g.:

• Instances of types like Query cannot be created with a simple constructor which makes unit testing of the code that depends on them difficult/impossible. Firestore Testing Support lib provides a type QueryFake that can be instantiated and used instead of actual Query instances in the tests.

tests.dependency 'FirebaseFirestoreTestingSupport', '~> 1.0'

dependencies: [
    ...
    "FirebaseFirestoreTestingSupport"
],

See test for example, e.g. QueryFakeTests.swift.

E.g. for FirebaseFirestoreTestingSupport run the following command for the root repo directory:

pod gen --auto-open --local-sources=./ FirebaseFirestoreTestingSupport.podspec --platforms=ios

• Open the main package definition:

xed Package.swift

• Select (or add if not exists yet) a scheme for the test target, e.g. FirestoreTestingSupportTests

• make required modifications and run tests as needed.