// Verify that setRequestCredits was called with the correct argument
        verify(mockRequest, times(1)).setRequestCredits(credits);
    }

    @Test
    void testIsCancelTrue() {
        // Test case for isCancel method when it returns true
        when(mockRequest.isCancel()).thenReturn(true);

        assertTrue(mockRequest.isCancel(), "isCancel should return true when mocked to do so.");