public void CtorNoReflection_CorrectNumberOfStatesButDuplicates_Throws()
{
// Arrange
var log = new StateMachineDiagonosticsLog <TwoStatesID>();
var stubStates = new StubStateWithDiagnostics <TwoStatesID>[]
{
new StubStateWithDiagnostics <TwoStatesID>(TwoStatesID.One, log),
new StubStateWithDiagnostics <TwoStatesID>(TwoStatesID.One, log),
};
// Both "DuplicateStates" and "NotEnoughStates" would be valid errors
var notEnoughMessage = string.Concat(
"StateMachine trying to initialize with an invalid set of states. " +
"Not enough states passed in. Missing states: Two");
var duplicatesMessage = string.Concat(
"StateMachine trying to initialize with an invalid set of states. " +
"Duplicate states passed in. Duplicate states: One");
// Act / Assert
var exception = Assert.Throws <System.ArgumentException>(
() => new StateMachine <TwoStatesID>(stubStates, TwoStatesID.One));
Assert.That(exception.Message,
Is.EqualTo(notEnoughMessage).Or.EqualTo(duplicatesMessage));
}
public void CtorNoReflection_NotEnoughStates_Throws()
{
// Arrange
var log = new StateMachineDiagonosticsLog <TwoStatesID>();
var stubStates = new StubStateWithDiagnostics <TwoStatesID>[]
{
new StubStateWithDiagnostics <TwoStatesID>(TwoStatesID.One, log)
};
var expectedMessage = string.Concat(
"StateMachine trying to initialize with an invalid set of states. " +
"Not enough states passed in. Missing states: Two");
// Act / Assert
var exception = Assert.Throws <System.ArgumentException>(
() => new StateMachine <TwoStatesID>(stubStates, TwoStatesID.One));
Assert.That(exception.Message, Is.EqualTo(expectedMessage));
}
public void CtorNoReflection_OneState_EntersOnlyInitialState()
{
// Arrange
var log = new StateMachineDiagonosticsLog <TwoStatesID>();
var stubStates = new StubStateWithDiagnostics <TwoStatesID>[]
{
new StubStateWithDiagnostics <TwoStatesID>(TwoStatesID.One, log),
new StubStateWithDiagnostics <TwoStatesID>(TwoStatesID.Two, log),
};
var expectedLog = new StateMachineDiagonosticsLog <TwoStatesID>();
expectedLog.AddEntry(StateMachineDiagonosticsLog <TwoStatesID> .LogEntry.Callback.Enter, TwoStatesID.One);
// Act
new StateMachine <TwoStatesID>(stubStates, TwoStatesID.One);
// Assert
Assert.That(log, Is.EqualTo(expectedLog));
}
public void ChangeState_CurrentState_DoesNothing()
{
// Arrange
var log = new StateMachineDiagonosticsLog <TwoStatesID>();
var stubStates = new StubStateWithDiagnostics <TwoStatesID>[]
{
new StubStateWithDiagnostics <TwoStatesID>(TwoStatesID.One, log),
new StubStateWithDiagnostics <TwoStatesID>(TwoStatesID.Two, log),
};
var stateMachine = new StateMachine <TwoStatesID>(stubStates, TwoStatesID.One);
var expectedLog = new StateMachineDiagonosticsLog <TwoStatesID>();
expectedLog.AddEntry(StateMachineDiagonosticsLog <TwoStatesID> .LogEntry.Callback.Enter, TwoStatesID.One);
// Act
stateMachine.ChangeState(TwoStatesID.One);
// Assert
Assert.That(log, Is.EqualTo(expectedLog));
}
public StubStateWithDiagnostics(T id, StateMachineDiagonosticsLog <T> diagonosticsLog)
{
this.ID = id;
this.Log = diagonosticsLog;
}
