@Test
public void resolved_image_file_path_with_imagedir_not_found() {

    /* prepare */
    File imageFolder = TestResourcesLoader.assertTestFile("codeassist/include/test1/subfolder2");
    Collection<AsciiDoctorMarker> errors = new ArrayList<>();
    
    /* execute */
    validatorToTest.validate(imageFolder, Collections.singleton(new AsciiDoctorFileReference("image::unknown.png", 1, 20, 20)),errors);
    
    /* test */
    assertEquals(1,errors.size());
}