public void testRemoveStudent() { Student str = new Student(); str.StudentID = "11"; str.FirstName = "romyr"; contoller.addOrUpdateStudent(str); //str.StudentID = "123"; //str.FirstName = "sample"; //contoller.addOrUpdateStudent(str); contoller.removeStudent("11"); int asd = contoller.getAllStudents().Count; Assert.AreEqual(contoller.getStudent("11"), null); Assert.AreEqual(contoller.getAllStudents().Count, asd); //Remove a student //Test that the student is not present after running the remove function }