@Test
  public void updateLinkValid() throws PersistenceException, URISyntaxException {
    Exercise exercise1 = getDummyExercise();
    Exercise exercise2 = new Exercise(exercise1);
    exercise2.setVideolink("test");

    updateValid(exercise1, exercise2);
  }
  @Test
  public void updateCatValid() throws PersistenceException, URISyntaxException {
    Exercise exercise1 = getDummyExercise();
    Exercise exercise2 = new Exercise(exercise1);
    exercise2.setCategories(new ArrayList<>());

    updateValid(exercise1, exercise2);
  }
  @Test
  public void updateCaloriesValid() throws PersistenceException, URISyntaxException {
    Exercise exercise1 = getDummyExercise();
    Exercise exercise2 = new Exercise(exercise1);
    exercise2.setCalories(1.0);

    updateValid(exercise1, exercise2);
  }