public void ExpectMessages(params Event[] g)
{
_thenWasCalled = true;
_then.AddRange(g);
IEnumerable<Event> actual;
var givenEvents = _givenEvents.ToArray();
if (_dontExecuteOnExpect) return;
try
{
actual = ExecuteCommand(givenEvents, _when);
}
catch (DomainError e)
{
actual = new Event[] { new ExceptionThrown(e.Name) };
}
var results = CompareAssert(_then.ToArray(), actual.ToArray()).ToArray();
PrintSpecification();
PrintResults(results);
if (results.Any(r => r.Failure != null))
Assert.Fail("Specification failed");
}
protected static IEnumerable<ExpectResult> CompareAssert(
Event[] expected,
Event[] actual)
{
var max = Math.Max(expected.Length, actual.Length);
for (int i = 0; i < max; i++)
{
var ex = expected.Skip(i).FirstOrDefault();
var ac = actual.Skip(i).FirstOrDefault();
var expectedString = ex == null ? "No event expected" : ex.ToString();
var actualString = ac == null ? "No event actually" : ac.ToString();
var result = new ExpectResult { Expectation = expectedString };
var realDiff = CompareObjects.FindDifferences(ex, ac);
if (!string.IsNullOrEmpty(realDiff))
{
var stringRepresentationsDiffer = expectedString != actualString;
result.Failure = stringRepresentationsDiffer ?
GetAdjusted("Was: ", actualString) :
GetAdjusted("Diff: ", realDiff);
}
yield return result;
}
}
protected abstract Event[] ExecuteCommand(Event[] store, Command cmd);
public EventDescriptor(Guid id, Event eventData, int version)
{
EventData = eventData;
Version = version;
Id = id;
}