public void TestFailedWait()
{
MockQuestion.Setup(x => x.RequestAs(It.IsAny <IActor>())).Returns(1);
MockCondition.Setup(x => x.Evaluate(It.IsAny <int>())).Returns(false);
Actor.Invoking(actor => actor.AskingFor(ValueAfterWaiting.Until(MockQuestion.Object, MockCondition.Object).ForUpTo(0)))
.Should().Throw <WaitingException <int> >(because: "the Question should not satisfy the condition");
}
public void TestSuccessfulWait()
{
MockQuestion.Setup(x => x.RequestAs(It.IsAny <IActor>())).Returns(1);
MockCondition.Setup(x => x.Evaluate(It.IsAny <int>())).Returns(true);
Actor.AskingFor(ValueAfterWaiting.Until(MockQuestion.Object, MockCondition.Object).ForUpTo(0))
.Should().Be(1, because: "waiting should return the Question's final answer");
}
/// <summary>
/// A simplified extension method for waiting.
/// Calls will look like `Actor.WaitsUntil(...)` instead of `Actor.AsksFor(ValueAfterWaiting.Until(...))`.
/// </summary>
/// <typeparam name="TAnswer">The type of the question's answer value.</typeparam>
/// <param name="actor">The Screenplay actor.</param>
/// <param name="question">The question upon whose answer to wait.</param>
/// <param name="condition">The expected condition for which to wait.</param>
/// <param name="timeout">The timeout override in seconds. If null, use the standard timeout value.</param>
/// <param name="additional">An additional amount to add to the timeout. Defaults to 0.</param>
/// <returns></returns>
public static TAnswer WaitsUntil <TAnswer>(
this IActor actor,
IQuestion <TAnswer> question,
ICondition <TAnswer> condition,
int?timeout = null,
int additional = 0) =>
actor.AsksFor(ValueAfterWaiting.Until(question, condition).ForUpTo(timeout).ForAnAdditional(additional));
public void TestSuccessfulWaitAfterChange()
{
const int limit = 5;
int incrementer = 0;
MockQuestion.Setup(x => x.RequestAs(It.IsAny <IActor>())).Returns(() => ++ incrementer);
MockCondition.Setup(x => x.Evaluate(It.Is <int>(v => v < limit))).Returns(false);
MockCondition.Setup(x => x.Evaluate(It.Is <int>(v => v >= limit))).Returns(true);
Actor.AskingFor(ValueAfterWaiting.Until(MockQuestion.Object, MockCondition.Object).ForUpTo(1))
.Should().Be(limit, because: "waiting should return the Question's final answer");
incrementer.Should().Be(limit, because: $"the Question should be called {limit} times");
}