public void TestCourseIfFullWithNegativeStudents()
 {
     Course english = new Course("English");
     english.StudentsCount = -5;
     bool courseFull = english.CheckIfCourseIsFull();
     Assert.IsFalse(courseFull);
 }
 public void TestCourseIfFullWith30Students()
 {
     Course english = new Course("English");
     english.StudentsCount = 30;
     bool courseFull = english.CheckIfCourseIsFull();
     Assert.IsTrue(courseFull);
 }