public void ReferenceTypePassByValue()
{
ThrowAwayGradeBook book1 = new ThrowAwayGradeBook();
ThrowAwayGradeBook book2 = book1;
GiveBookAName(/*ref*/ book2);
Assert.AreEqual("A GradeBook", book2.Name);
}
public void GradeVariableHoldReference()
{
ThrowAwayGradeBook g1 = new ThrowAwayGradeBook();
ThrowAwayGradeBook g2 = g1;
g1.Name = "Berg's Grade Book";
Assert.AreEqual(g1.Name, g2.Name);
}
private static GradeBook InitializeGradeBook()
{
GradeBook book = new ThrowAwayGradeBook();
book.AddGrade(90);
book.AddGrade(0);
return(book);
}
public void ReferenceTypePassByValue()
{
ThrowAwayGradeBook book1 = new ThrowAwayGradeBook();
ThrowAwayGradeBook book2 = book1;
GiveBookAName(book2);
Assert.AreEqual("A GradeBook", book1.Name);
}
public void GradeBookVariablesHoldAReference()
{
ThrowAwayGradeBook g1 = new ThrowAwayGradeBook();
ThrowAwayGradeBook g2 = g1;
g1 = new ThrowAwayGradeBook();
g1.Name = "Ravi's Grade Book";
Assert.AreNotEqual(g1.Name, g2.Name);
}
public void ComputeLowestGrade()
{
ThrowAwayGradeBook book = new ThrowAwayGradeBook();
book.AddGrades(10);
book.AddGrades(90);
GradeStatistics result = book.ComputeStatistics();
Assert.AreEqual(10, result.LowestGrade);
}
public void ComputesHighestGrade()
{
GradeBook book = new ThrowAwayGradeBook();
book.AddGrade(10);
book.AddGrade(90);
GradeStatistics result = book.ComputeStatistics();
Assert.AreEqual(90, result.HighestGrade);
}
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);
}
private void GiveBookAName(ThrowAwayGradeBook book)
{
book.Name = "A GradeBook";
}
private void GiveBookAName(/*ref*/ ThrowAwayGradeBook book)
{
//book = new GradeBook();
book.Name = "A GradeBook";
}
private static IGradeTracker CreateGradebook()
{
IGradeTracker book = new ThrowAwayGradeBook("Johan's Book");
return book;
}
