public void ClassbookOfFourRankingWithGrade()
{
Classbook classbook = new Classbook();
classbook.AddStudent(new Student("John"));
classbook.AddStudent(new Student("Marry"));
classbook.AddStudent(new Student("Linda"));
classbook.AddStudent(new Student("Mike"));
var john = classbook.FindStudent("John");
var marry = classbook.FindStudent("Marry");
var linda = classbook.FindStudent("Linda");
var mike = classbook.FindStudent("Mike");
john.ReceiveGrade("Biology", 6);
john.ReceiveGrade("Biology", 8);
john.ReceiveGrade("Chemistry", 8);
marry.ReceiveGrade("Maths", 10);
marry.ReceiveGrade("Biology", 8);
marry.ReceiveGrade("Chemistry", 8);
linda.ReceiveGrade("Maths", 7);
linda.ReceiveGrade("Biology", 5);
mike.ReceiveGrade("Chemistry", 10);
Assert.Equal(1, classbook.Rank("Mike"));
Assert.Equal(2, classbook.Rank("Marry"));
Assert.Equal(3, classbook.Rank("John"));
Assert.Equal(4, classbook.Rank("Linda"));
}
public void AverageSubjectGradeForAStudentInClassbook()
{
Classbook classbook = new Classbook();
classbook.AddStudent(new Student("John"));
classbook.AddStudent(new Student("Marry"));
classbook.AddStudent(new Student("Linda"));
classbook.AddStudent(new Student("Mike"));
var john = classbook.FindStudent("John");
var marry = classbook.FindStudent("Marry");
var linda = classbook.FindStudent("Linda");
var mike = classbook.FindStudent("Mike");
john.ReceiveGrade("Biology", 6);
john.ReceiveGrade("Biology", 8);
john.ReceiveGrade("Chemistry", 8);
marry.ReceiveGrade("Maths", 10);
marry.ReceiveGrade("Biology", 8);
marry.ReceiveGrade("Chemistry", 8);
linda.ReceiveGrade("Maths", 7);
linda.ReceiveGrade("Biology", 5);
mike.ReceiveGrade("Chemistry", 10);
var biology = john.FindSubject("Biology");
Assert.Equal(7, biology.AverageSubjectGrade());
}