public void BookCalculatesAnAverageGrade()
{
var book = new InMemoryBook("");
book.AddGrade(89.1);
book.AddGrade(90.5);
book.AddGrade(77.3);
var result = book.GetStatics();
Assert.Equal(85.6, result.Average, 1);
Assert.Equal(90.5, result.High, 1);
Assert.Equal(77.3, result.Low, 1);
Assert.Equal('B', result.Letter);
}
public void BookCalculateAnAverageGrade()
{
// aarange
var book = new InMemoryBook("Aaru");
book.AddGrade(22.2);
book.AddGrade(33.3);
book.AddGrade(11.1);
book.AddGrade(44.4);
// act
var result = book.GetStatics();
// assert
Assert.Equal(27.75, result.Average);
Assert.Equal(11.1, result.LowGrade);
Assert.Equal(44.4, result.HighGrade);
}