/// <summary>
/// Waits until the Question's answer value meets the condition.
/// If the expected condition is not met within the time limit, then an exception is thrown.
/// Returns the actual awaited value.
/// </summary>
/// <param name="actor">The Screenplay Actor.</param>
/// <returns></returns>
protected void WaitForValue(IActor actor)
{
// Set variables
bool satisfied = false;
ActualTimeout = CalculateTimeout(actor);
// Adjust log level if necessary (to avoid too many messages)
LogSeverity original = actor.Logger.LowestSeverity;
if (SuppressLogs && actor.Logger.LowestSeverity < LogSeverity.Warning)
{
actor.Logger.LowestSeverity = LogSeverity.Warning;
}
// Start the timer
var timer = new Stopwatch();
timer.Start();
try
{
// Repeatedly check if the condition is satisfied until the timeout is reached
do
{
satisfied = EvaluateCondition(actor);
}while (!satisfied && timer.Elapsed.TotalSeconds < ActualTimeout);
}
finally
{
// Return the log level to normal, no matter what goes wrong
if (SuppressLogs)
{
actor.Logger.LowestSeverity = original;
}
// Stop the timer
timer.Stop();
}
// Verify successful waiting
if (!satisfied)
{
if (ConditionEvaluators.Count > 1)
{
throw new WaitingException(this, ConditionEvaluators.Select(c => c.Answer).ToList());
}
else
{
throw ConditionEvaluators[0].WaitingException(this);
}
}
}
/// <summary>
/// Add a Question and condition pair to the list of conditions to be evaluated with an Or operator.
/// </summary>
/// <typeparam name="TAnswer"></typeparam>
/// <param name="question"></param>
/// <param name="condition"></param>
/// <returns></returns>
public Wait Or <TAnswer>(IQuestion <TAnswer> question, ICondition <TAnswer> condition)
{
ConditionEvaluators.Add(new ConditionEvaluator <TAnswer>(question, condition, ConditionOperators.Or));
return(this);
}
