private void CheckThatNoStateHasAlreadyASuperState(IEnumerable <TState> stateIds, TState newSuperStateId)
{
IEnumerable <IState <TState, TEvent> > statesAlreadyHavingASuperState = stateIds.Select(subStateId => this.states[subStateId]).Where(subState => subState.SuperState != null);
if (statesAlreadyHavingASuperState.Any())
{
throw new InvalidOperationException(ExceptionMessages.CannotSetStateAsASuperStateBecauseASuperStateIsAlreadySet(newSuperStateId, statesAlreadyHavingASuperState));
}
}
private void CheckThatStateHasNotAlreadyASuperState(IState <TState, TEvent> subState)
{
Ensure.ArgumentNotNull(subState, "subState");
if (subState.SuperState != null)
{
throw new InvalidOperationException(
ExceptionMessages.CannotSetStateAsASuperStateBecauseASuperStateIsAlreadySet(
this.superState.Id,
subState));
}
}
public void ThrowsExceptionIfSubStateAlreadyHasASuperState()
{
const string SubState = "SubState";
var subState = new StateDefinition <string, int>(SubState)
{
SuperStateModifiable = new StateDefinition <string, int>("SomeOtherSuperState")
};
A.CallTo(() => this.states[SubState]).Returns(subState);
this.testee.Invoking(t => t.WithInitialSubState(SubState))
.Should().Throw <InvalidOperationException>()
.WithMessage(ExceptionMessages.CannotSetStateAsASuperStateBecauseASuperStateIsAlreadySet(
SuperState,
subState));
}
