public void CheckIfGradeIsValidValud()
{
// arrange
var book = new InMemoryBook("");
// book.AddGrade(115.7);
book.AddGrade(90.5);
// book.AddGrade(-3.2);
// act
var result = book.GetStatistics();
// assert
Assert.Equal(1, book.getGradeCount());
}
public void LetterGradeAddsCorrectGrade()
{
var myBook1 = new InMemoryBook("Peter's Grade Book");
myBook1.AddGrade('A');
myBook1.AddGrade('F');
Statistics stats = new Statistics();
stats = myBook1.GetStatistics();
var count = myBook1.getGradeCount();
Assert.Equal(2, count);
Assert.Equal(90, stats.High, 1);
Assert.Equal(0, stats.Low, 1);
Assert.Equal(45, stats.Average, 1);
}