@Test
public void process_Duplicate() throws Exception {

    course.setId(100L);
    course.setTitle("Title");
    course.setSemester(null);
    course.setEnabled("0");
    Course resultCourse = courseProcessor.process(course);
    assertEquals(resultCourse, course);
    Course duplicateCourse = courseProcessor.process(course);
    assertNull(duplicateCourse);
}