corsFilter.doFilter(mockRequest, mockResponse, mockFilterChain);

        assertTrue(mockFilterChain.wasDoFilterCalled());
        assertTrue(corsHandlerFactory.wasGetCalled());
        assertTrue(handler.wasProcessCalled());
        assertEquals(origin, handler.getLastOrigin());
        assertSame(mockRequest, handler.getLastRequest());
        assertSame(mockResponse, handler.getLastResponse());