Error: expect(jest.fn()).tohavebeencalledwith(…expected)

Query Error: expect(jest.fn()).toHaveBeenCalledWith(…expected)

This error occurs when an expected function in a Jest test is not called with the expected arguments.
It is a common error when testing the behavior of functions with specific input parameters.

Here’s an example to illustrate this error:

        // sample.js
        function sum(a, b) {
            return a + b;
        }
        
        // sample.test.js
        test('sum function should be called with correct arguments', () => {
            const mockFn = jest.fn();
            mockFn(1, 2);
            expect(mockFn).toHaveBeenCalledWith(3, 4);
        });
        
        // Running the test will result in the following error:
        // expect(jest.fn()).toHaveBeenCalledWith(...expected)
        // Expected: 3, 4
        // Received: 1, 2
    

In this example, the test expects the mock function mockFn to be called with arguments 3 and 4.
However, the actual call to mockFn(1, 2) does not match the expected arguments, leading to the error.

To fix this error, make sure the function under test is called with the correct arguments as expected in the test case. In this example, you would need to change mockFn(1, 2) to mockFn(3, 4) to satisfy the expectation.