context = new TestAbstractCIFSContext(null); // Test with null credentials
        assertFalse(context.hasDefaultCredentials());
    }

    @Test
    void testRenewCredentials() {
        assertFalse(context.renewCredentials("someLocation", new Exception("someError")));
    }

    @Test
    void testClose() throws CIFSException {
        assertFalse(context.isCloseCalled());

        // Then
        assertEquals(newContext, context);
        verify(mockContext).withCredentials(creds);
    }

    @Test
    @DisplayName("Should renew credentials")
    void testRenewCredentials() {
        // Given
        String hint = "hint";
        Throwable error = new Exception();
        when(mockContext.renewCredentials(hint, error)).thenReturn(true);

        // When