@Test
public void uploadVideo_VideoUploadFailed_ReturnsNull() {

    MockInterceptor okHttpMockInterceptor = new MockInterceptor();
    okHttpMockInterceptor.addRule()
            .post()
            .url("https://jumpcutter.letum.ch/upload")
            .answer(request -> new Response.Builder().code(404));
    OkHttpClient okHttpClient = new OkHttpClient.Builder()
            .addInterceptor(okHttpMockInterceptor)
            .build();
    File videoFile = new File("./src/test/java/com/eddex/jackle/jumpcutter/internet/test.mp4");
    ServerWrapper server = new ServerWrapper(okHttpClient, null);
    String videoId = server.uploadVideo(videoFile);
    Assert.assertEquals(null, videoId);
}