To access the underlying function, use Mock.fn. The Mock.mockN constructor returns a mutable opaque type for tracking call information.
This is useful when you want to completely reset a. Let calculateInterest = Mock.mock3((p, r, t) => p *. Does everything that mockFn.mockClear() does, and also removes any mocked return values or implementations. A default implementation must be specified. There are constructors for creating mocks that take up to 7 arguments. A simple example using functors is shown below. The is a shortcut for the src folder so I don. That needs to be the same path you pass to jest.unmock. Notice the path of the module I used in the jest.mock call. The mock listens to the query method on activebankrequest and returns a mock response. Many situations in which jest.mock would be useful can be addressed through dependency management and the structuring of side effects within your application. Here I mock the query module, specifically the activebankrequest object, using jest.mock. The functionality available in Rely is analagous to what Jest offers via jest.fn and there is no direct jest.mock analogy. Unlike Jest in JavaScript, module level mocking is not supported. Rely has built-in matchers for dealing with mock functions that are documented extensively here. Mock functions (or "spies") in Rely can be used to track information about the arguments and return values of functions, and allow for test-time configuration of return values.
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