Spring MVC - MockMultipartFile Examples

    @Test
    public void testController () throws Exception {
        ResultMatcher ok = MockMvcResultMatchers.status().isOk();

        MockMultipartFile file = new MockMultipartFile("user-file", "test.txt",
                                                       null, "test data".getBytes());

        MockHttpServletRequestBuilder builder =
                            MockMvcRequestBuilders.fileUpload("/upload")
                                                  .file(file);
        this.mockMvc.perform(builder).andExpect(ok);

    }