public void PickWinnerWhenACompetitionIsClosedThrowsException()
{
// Arrange
Competition competition = Stubs.StubCompetition(includeCorrectAnswers: true);
var competitionState = new ClosedState();
// Act & Assert
Assert.Throws <CompetitionClosedException>(() => competitionState.PickWinner(competition));
}
public void CompetitionIsValid()
{
// Arrange
Competition competition = Stubs.StubCompetition();
// Act
bool isValid = competition.IsValid;
// Assert
Assert.IsTrue(isValid);
}
public void TheNumberOfIncorrectAnswersIs9()
{
// Arrange
Competition competition = Stubs.StubCompetition();
// Act
int incorrectAnswerCount = competition.IncorrectEntrants.Count();
// Assert
Assert.AreEqual(9, incorrectAnswerCount);
}
/// <summary>
/// Asserts the answer count.
/// </summary>
/// <param name="answer">The answer.</param>
/// <param name="expectedCount">The expected count.</param>
private static void AssertAnswerCount(CompetitionAnswer answer, int expectedCount)
{
// Arrange
Competition competition = Stubs.StubCompetition();
// Act
int count = competition.GetNumberOfEntrants(answer);
// Assert
Assert.AreEqual(expectedCount, count);
}
/// <summary>
/// Asserts the answer percentage.
/// </summary>
/// <param name="answer">The answer.</param>
/// <param name="expectedPercentage">The expected percentage.</param>
private static void AssertAnswerPercentage(CompetitionAnswer answer, decimal expectedPercentage)
{
// Arrange
Competition competition = Stubs.StubCompetition();
// Act
decimal percentage = competition.GetPercentageOfEntrants(answer);
// Assert
Assert.AreEqual(expectedPercentage, decimal.Round(percentage, 2));
}
public void PickWinnerWithNoCorrectAnswers()
{
// Arrange
Competition competition = Stubs.StubCompetition(includeCorrectAnswers: false);
var competitionState = new OpenState();
WinnerSelectedEvent winnerSelectedEvent = null;
DomainEvents.Register <WinnerSelectedEvent>(evt => winnerSelectedEvent = evt);
// Act
competitionState.PickWinner(competition);
// Assert
Assert.IsNull(winnerSelectedEvent.Competition.Winner);
Assert.AreEqual(CompetitionStatus.Closed, competition.State.Status);
}
public void PickWinnerWhenTheCloseDateHasNotPassed()
{
// Arrange
Competition competition = Stubs.StubCompetition(includeCorrectAnswers: false);
competition.ClosingDate = DateTime.Now.AddMonths(1); // always ensure the data is in the future
var competitionState = new OpenState();
WinnerSelectedEvent winnerSelectedEvent = null;
DomainEvents.Register <WinnerSelectedEvent>(evt => winnerSelectedEvent = evt);
// Act
competitionState.PickWinner(competition);
// Assert
Assert.IsNull(winnerSelectedEvent);
Assert.AreEqual(CompetitionStatus.Open, competition.State.Status);
}
