public void CtorNoReflection_CorrectNumberOfStatesButDuplicates_Throws()
{
// Arrange
var log = new StateMachineDiagnosticsLog <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 =
"StateMachine trying to initialize with an invalid set of states. Not enough states passed in. Missing states: Two";
var duplicatesMessage =
"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>(
// ReSharper disable once ObjectCreationAsStatement
// ReSharper disable once CoVariantArrayConversion
() => 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 StateMachineDiagnosticsLog <TwoStatesID>();
var stubStates = new StubStateWithDiagnostics <TwoStatesID>[]
{
new StubStateWithDiagnostics <TwoStatesID>(TwoStatesID.One, log)
};
var expectedMessage =
"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>(
// ReSharper disable once ObjectCreationAsStatement
// ReSharper disable once CoVariantArrayConversion
() => new StateMachine <TwoStatesID>(stubStates, TwoStatesID.One));
Assert.That(exception.Message, Is.EqualTo(expectedMessage));
}
public void ChangeState_CurrentState_DoesNothing()
{
// Arrange
var log = new StateMachineDiagnosticsLog <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 StateMachineDiagnosticsLog <TwoStatesID>();
expectedLog.AddEntry(StateMachineDiagnosticsLog <TwoStatesID> .LogEntry.Callback.Enter, TwoStatesID.One);
// Act
stateMachine.ChangeTo(TwoStatesID.One);
// Assert
Assert.That(log, Is.EqualTo(expectedLog));
}
public void CtorNoReflection_OneState_EnterOnlyInitialState()
{
// Arrange
var log = new StateMachineDiagnosticsLog <TwoStatesID>();
var stubStates = new StubStateWithDiagnostics <TwoStatesID>[]
{
new StubStateWithDiagnostics <TwoStatesID>(TwoStatesID.One, log),
new StubStateWithDiagnostics <TwoStatesID>(TwoStatesID.Two, log)
};
var expectedLog = new StateMachineDiagnosticsLog <TwoStatesID>();
expectedLog.AddEntry(StateMachineDiagnosticsLog <TwoStatesID> .LogEntry.Callback.Enter, TwoStatesID.One);
// Act
// ReSharper disable once CoVariantArrayConversion
// ReSharper disable once ObjectCreationAsStatement
new StateMachine <TwoStatesID>(stubStates, TwoStatesID.One);
// Assert
Assert.That(log, Is.EqualTo(expectedLog));
}