public static EventInfo ParseAddHandlerAction(this MocksRepository repo, Action addHandlerAction, out object instance)
{
EventInfo theEvent = null;
object instanceVar = null;
var recorder = new DelegatingRecorder();
recorder.Record += invocation =>
{
var candidateEvent = invocation.Method.GetEventFromAddOrRemove();
if (candidateEvent != null)
{
theEvent = candidateEvent;
instanceVar = MocksRepository.GetMockMixin(invocation.Instance, theEvent.DeclaringType)
?? invocation.Instance;
}
};
using (repo.StartRecording(recorder, true))
{
addHandlerAction();
}
instance = instanceVar;
return(theEvent);
}
internal static CallPattern FromAction(MocksRepository repository, Action memberAction, bool dispatchToMethodMocks = false)
{
var callPattern = new CallPattern();
Invocation lastInvocation = null;
var recorder = new DelegatingRecorder();
recorder.Record += invocation => lastInvocation = invocation;
using (repository.StartRecording(recorder, dispatchToMethodMocks))
{
memberAction();
}
if (lastInvocation == null)
{
throw new MockException("The specified action did not call a mocked method.");
}
callPattern.SetMethod(lastInvocation.Method, checkCompatibility: true);
callPattern.InstanceMatcher = new ReferenceMatcher(lastInvocation.Instance);
// Because it's impossible to distinguish between a literal value passed as an argument and
// one coming from a matcher, it is impossible to tell exactly which arguments are literal and which are matchers.
// So, we assume that the user always first specifies some literal values, and then some matchers.
// We assume that the user will never pass a literal after a matcher.
using (repository.StartArrangeArgMatching())
{
for (int i = 0; i < lastInvocation.Args.Length; ++i)
{
var indexInMatchers = i - (lastInvocation.Args.Length - repository.MatchersInContext.Count);
var matcher = indexInMatchers >= 0 ? repository.MatchersInContext[indexInMatchers] : new ValueMatcher(lastInvocation.Args[i]);
callPattern.ArgumentMatchers.Add(matcher);
}
}
repository.MatchersInContext.Clear();
callPattern.AdjustForExtensionMethod();
return(callPattern);
}
