public void GetFullCourseStudentInfo() { Student pesho = new Student("Pepito", 10101); Student gosho = new Student("Gosho", 10201); Course pottary = new Course("Pottary"); testingSchool.AddStudent(pesho); testingSchool.AddStudent(gosho); testingSchool.AddCourse(pottary); testingSchool.AddStudentToCourse(pesho, pottary); testingSchool.AddStudentToCourse(gosho, pottary); StringBuilder actualResult = new StringBuilder(); actualResult.AppendLine(pesho.DisplayFullCourseInfoToConsoleAndReturnValue()); StringBuilder expectedResult = new StringBuilder(); expectedResult.AppendLine("Pepito is attending:"); expectedResult.AppendFormat("Course name: Pottary"); expectedResult.AppendLine(); expectedResult.AppendLine("The students appending this course are:"); foreach (Course course in pesho.AttendedCourse) { expectedResult.AppendLine(course.GetFullInfo()); } Assert.AreEqual(expectedResult, expectedResult); }