public void TestAllMethodCourseNoCourse()
        {
            var system = new CoursesController(new BangaloreUniversityDate(), new User(Username, Password, Role.Lecturer));

            var result = system.All();

            Assert.AreEqual("No courses.", result.Display());
        }
        public void TestAllMethodCourse()
        {
            var system = new CoursesController(new BangaloreUniversityDate(), new User(Username, Password, Role.Lecturer));
            var expect = new StringBuilder();

            expect.Append("All courses:").AppendLine();
            expect.Append("Advanced C# (0 students)").AppendLine();
            expect.Append("Java Basic (0 students)");
            system.Create("Advanced C#");
            system.Create("Java Basic");
            var result = system.All();

            Assert.AreEqual(expect.ToString(), result.Display().Trim());
        }