To fix Jest mock the same function twice with different arguments, we call mockReturnValueOnce.

For instance, we write

myMock.mockReturnValueOnce(10).mockReturnValueOnce("x").mockReturnValue(true);

to call mockReturnValueOnce on the myMock mock object.

Then we call mockReturnValue again to return a different mock value for a different call.

Finally, we call mockReturnValue to return a 3rd value for myMock.

Then we can check them with

expect(mock).toHaveBeenNthCalledWith(1, "1st call args");
expect(mock).toHaveBeenNthCalledWith(2, "2nd call arg 1", "2nd call arg 2");

to check with the arguments that mock is called with in different calls.