public void ComputeLowestGrade()
{
GradeBook grades = new GradeBook();
grades.Add(10.5f);
grades.Add(90.5f);
GradeStatistics result = grades.ComputeStatistics();
Assert.AreEqual(50.5, result.AverageGrade);
}
public void ComputeHighestGrade()
{
GradeBook grades = new GradeBook();
grades.Add(10);
grades.Add(90);
GradeStatistics result = grades.ComputeStatistics();
Assert.AreEqual(90, result.HighestGrade);
}
public void LetterGradeFDescriptionTest()
{
var grades = new GradeBook();
grades.Add(40);
grades.Add(50);
grades.Add(44);
var stats = grades.ComputeStatistics();
Assert.AreEqual("Fail", stats.Description);
}
public void LetterGradeDDescriptionTest()
{
var grades = new GradeBook();
grades.Add(60);
grades.Add(60);
grades.Add(65);
var stats = grades.ComputeStatistics();
Assert.AreEqual("Average", stats.Description);
}
public void LetterGradeCDescriptionTest()
{
var grades = new GradeBook();
grades.Add(70);
grades.Add(70);
grades.Add(75);
var stats = grades.ComputeStatistics();
Assert.AreEqual("Good", stats.Description);
}
public void LetterGradeADescriptionTest()
{
var grades = new GradeBook();
grades.Add(99);
grades.Add(99);
grades.Add(99);
var stats = grades.ComputeStatistics();
Assert.AreEqual("Excellent", stats.Description);
}
public void LetterGradeFTest()
{
var grades = new GradeBook();
grades.Add(40);
grades.Add(50);
grades.Add(44);
var stats = grades.ComputeStatistics();
Assert.AreEqual("F", stats.LetterGrade);
}
public void LetterGradeDTest()
{
var grades = new GradeBook();
grades.Add(60);
grades.Add(60);
grades.Add(65);
var stats = grades.ComputeStatistics();
Assert.AreEqual("D", stats.LetterGrade);
}
public void ComputeWhenZeroGrade()
{
GradeBook grades = new GradeBook();
grades.Add(0);
grades.Add(0);
GradeStatistics result = grades.ComputeStatistics();
Assert.AreEqual(0, result.HighestGrade);
Assert.AreEqual(0, result.AverageGrade);
Assert.AreEqual(0, result.LowestGrade);
}