public void WriteATestToEnsureTheBuyBeerMethodChecksThePersonsAge()
{
var mock = new ___();
BuyBeer(mock.Object);
mock.___(); // verify the user's age was checked.
}
public void UsingWhatYouHaveLearned_CreateACompletelyFunctionalIVolumeMock()
{
// Use Moq to create a Mock<IVolume> instance.
// Have the internal volume start at 50.
// The Louder and Quieter methods should incrament/decrament the internal volume by the passed in amount.
// The Louder and Quieter methods should return the internal volume level after the change.
// For example if the internal volume was 10, and .Quieter(2) is called, then it should return 8.
// The volume should stay in the range 0 to 100. It should not go below 0 or over 100.
// If .Louder(999) is called, then the volume should be at 100.
// The CurrentVolume() methoud should always return the internal volume level, as a string.
// If a negative number is passed to either Louder or Quieter, then it should throw an ArgumentOutOfRangeException.
var mock = new ___();
// ...setup your mock here...
// Do not change these Asserts. Your setup mock should make all of these pass the way they are.
var volume = mock.Object;
Assert.AreEqual("50", volume.CurrentVolume());
Assert.AreEqual(40, volume.Quieter(10));
Assert.AreEqual("40", volume.CurrentVolume());
Assert.AreEqual(60, volume.Louder(20));
Assert.AreEqual("60", volume.CurrentVolume());
Assert.AreEqual(0, volume.Quieter(1000));
Assert.AreEqual("0", volume.CurrentVolume());
Assert.AreEqual(100, volume.Louder(1000));
Assert.AreEqual("100", volume.CurrentVolume());
try
{
volume.Louder(-1);
Assert.Fail("Louder did not throw an exception on a negative input.");
}
catch (Exception ex)
{
Assert.IsInstanceOfType(ex, typeof(ArgumentOutOfRangeException));
}
try
{
volume.Quieter(-1);
Assert.Fail("Quieter did not throw an exception on a negative input.");
}
catch (Exception ex)
{
Assert.IsInstanceOfType(ex, typeof(ArgumentOutOfRangeException));
}
}
public void CreateAMockIAdditionThatOnlyAddsPositiveNumbersAndThrowsAnExceptionIfEitherNumerIsNegative()
{
// hint: remember that MockBehavior.Strict will cause an Exception if the parameters don't match any .Setup() filters.
var mock = new ___();
mock.____();
Assert.AreEqual(3, mock.Object.Add(1, 2));
Assert.AreEqual(10, mock.Object.Add(0, 10));
try
{
mock.Object.Add(5, -5);
Assert.Fail("The .Add() method did not throw an Exception when a negative number was passed in.");
}
catch (Exception)
{
// expecting an Exception because we passed in a negative number.
}
}
public void CreateANewMockOfIVolumeToMakeThisTestPass()
{
var mock = new ___();
Assert.IsInstanceOfType(mock, typeof(Moq.Mock<IVolume>));
}