public void ComputeLowestGrade()
{
ThrowAwayGradeBook book = new ThrowAwayGradeBook();
book.AddGrades(10);
book.AddGrades(90);
GradeStatistics result = book.ComputeStatistics();
Assert.AreEqual(10, result.LowestGrade);
}
public void ComputeAverageGrade()
{
ThrowAwayGradeBook book = new ThrowAwayGradeBook();
book.AddGrades(91);
book.AddGrades(89.5f);
book.AddGrades(75);
GradeStatistics result = book.ComputeStatistics();
Assert.AreEqual(85.16, result.AverageGrade, 0.01);
}