public void TestStudent_LeaveCourseNull()
{
Student testStudentOne = new Student("Pesho");
Course javascript = new Course("Javascript Course", "Nakov");
testStudentOne.JoinCourse(javascript);
testStudentOne.LeaveCourse(null);
}
public void TestStudent_LeaveCourse()
{
Student testStudentOne = new Student("Pesho");
Course javascript = new Course("Javascript Course", "Nakov");
testStudentOne.JoinCourse(javascript);
testStudentOne.LeaveCourse(javascript);
Assert.IsFalse(javascript.Students.Contains(testStudentOne), "Student has not been removed in the course");
}