public bool AfterStarting(IMessageBus messageBus, TestStarting message)
{
_timer = new ExecutionTimer();
var testMethod = message.TestMethod.Method.ToRuntimeMethod();
foreach (var beforeAfterTestCaseAttribute in _beforeAfterAttributes)
{
try
{
_timer.Aggregate(() => beforeAfterTestCaseAttribute.Before(testMethod));
_attributesStack.Push(beforeAfterTestCaseAttribute);
}
catch (Exception e)
{
_exceptions.Add(e);
}
}
return(true);
}
public void OnTestEvent(string report)
{
XmlNode xmlNode = XmlHelper.CreateXmlNode(report);
switch (xmlNode.Name)
{
case "start-test":
TestStarting?.Invoke(new TestNodeEventArgs(TestAction.TestStarting, new TestNode(xmlNode)));
break;
case "start-suite":
SuiteStarting?.Invoke(new TestNodeEventArgs(TestAction.SuiteStarting, new TestNode(xmlNode)));
break;
case "start-run":
RunStarting?.Invoke(new RunStartingEventArgs(xmlNode.GetAttribute("count", -1)));
break;
case "test-case":
ResultNode result = new ResultNode(xmlNode);
_resultIndex[result.Id] = result;
TestFinished?.Invoke(new TestResultEventArgs(TestAction.TestFinished, result));
break;
case "test-suite":
result = new ResultNode(xmlNode);
_resultIndex[result.Id] = result;
SuiteFinished?.Invoke(new TestResultEventArgs(TestAction.SuiteFinished, result));
break;
case "test-run":
result = new ResultNode(xmlNode);
_resultIndex[result.Id] = result;
RunFinished?.Invoke(new TestResultEventArgs(TestAction.RunFinished, result));
break;
}
}
protected override async Task <RunSummary> RunTestAsync()
{
var scenarioFactTestCase = (ScenarioFactTestCase)TestCase;
var test = CreateTest(TestCase, DisplayName);
var aggregatedResult = new RunSummary();
// Theories are called with required arguments. Keep track of what arguments we already tested so that we can skip those accordingly
var testedArguments = new HashSet <object>();
// Each time we find a new theory argument, we will want to restart our Test so that we can collect subsequent test cases
bool pendingRestart;
do
{
// Safeguarding against abuse
if (testedArguments.Count >= scenarioFactTestCase.TheoryTestCaseLimit)
{
pendingRestart = false;
MessageBus.QueueMessage(new TestSkipped(test, "Theory tests are capped to prevent infinite loops. You can configure a different limit by setting TheoryTestCaseLimit on the Scenario attribute"));
aggregatedResult.Aggregate(new RunSummary
{
Skipped = 1,
Total = 1
});
}
else
{
var bufferedMessageBus = new BufferedMessageBus(MessageBus);
var stopwatch = Stopwatch.StartNew();
var skipAdditionalTests = false;
var testRecorded = false;
pendingRestart = false; // By default we dont expect a new restart
object? capturedArgument = null;
ScenarioContext scenarioContext = null;
scenarioContext = new ScenarioContext(scenarioFactTestCase.FactName, async(ScenarioTestCaseDescriptor descriptor) =>
{
// If we're hitting our target test
if (descriptor.Name == scenarioFactTestCase.FactName)
{
testRecorded = true;
if (skipAdditionalTests)
{
pendingRestart = true; // when we discovered more tests after a test completed, allow us to restart
scenarioContext.EndScenarioConditionally();
return;
}
if (descriptor.Argument is not null)
{
// If we've already received this test case, don't run it again
if (testedArguments.Contains(descriptor.Argument))
{
return;
}
testedArguments.Add(descriptor.Argument);
capturedArgument = descriptor.Argument;
}
// At this stage we found our first valid test case, any subsequent test case should issue a restart instead
skipAdditionalTests = true;
try
{
await descriptor.Invocation();
}
catch (Exception)
{
// If we caught an exception but we're in a theory, we will want to try for additional test cases
if (descriptor.Argument is not null)
{
pendingRestart = true;
}
throw;
}
finally
{
scenarioContext.IsTargetConclusive = true;
}
}
else
{
// We may be hitting a shared fact, those need to be invoked as well but not recorded as our primary target
if (!scenarioFactTestCase.RunInIsolation || descriptor.Flags.HasFlag(ScenarioTestCaseFlags.Shared))
{
await descriptor.Invocation();
}
}
});
scenarioContext.AutoAbort = scenarioFactTestCase.ExecutionPolicy is ScenarioTestExecutionPolicy.EndAfterConclusion;
TestMethodArguments = new object[] { scenarioContext };
RunSummary result;
result = await CreateTestRunner(test, bufferedMessageBus, TestClass, ConstructorArguments, TestMethod, TestMethodArguments, SkipReason, BeforeAfterAttributes, Aggregator, CancellationTokenSource).RunAsync();
aggregatedResult.Aggregate(result);
stopwatch.Stop();
var testInvocationTest = capturedArgument switch
{
null => CreateTest(TestCase, DisplayName),
not null => CreateTest(TestCase, $"{DisplayName} ({capturedArgument})")
};
var bufferedMessages = bufferedMessageBus.QueuedMessages;
// We should have expected at least one test run. We probably returned before our target test was able to run
if (!testRecorded && result.Failed == 0)
{
bufferedMessageBus.QueueMessage(new TestSkipped(test, scenarioContext.SkippedReason ?? "No applicable tests were able to run"));
result = new RunSummary {
Skipped = 1, Total = 1
};
}
// If we skipped this test, make sure that this is reported accordingly
if (scenarioContext.Skipped && !bufferedMessages.OfType <TestSkipped>().Any())
{
bufferedMessages = bufferedMessages.Concat(new[] { new TestSkipped(testInvocationTest, scenarioContext.SkippedReason) });
}
// If we have indeed skipped this test, make sure that we're not reporting it as passed or failed
if (bufferedMessages.OfType <TestSkipped>().Any())
{
bufferedMessages = bufferedMessages.Where(x => x is not TestPassed and not TestFailed);
}
// If we have a failure in post conditions, don't mark this test case as passed
if (bufferedMessages.OfType <TestFailed>().Any())
{
bufferedMessages = bufferedMessages.Where(x => x is not TestPassed);
}
var output = string.Join("", bufferedMessages
.OfType <ITestOutput>()
.Select(x => x.Output));
var duration = (decimal)stopwatch.Elapsed.TotalSeconds;
foreach (var queuedMessage in bufferedMessages)
{
var transformedMessage = queuedMessage switch
{
TestStarting testStarting => new TestStarting(testInvocationTest),
TestSkipped testSkipped => new TestSkipped(testInvocationTest, testSkipped.Reason),
TestPassed testPassed => new TestPassed(testInvocationTest, duration, output),
TestFailed testFailed => new TestFailed(testInvocationTest, duration, output, testFailed.ExceptionTypes, testFailed.Messages, testFailed.StackTraces, testFailed.ExceptionParentIndices),
TestFinished testFinished => new TestFinished(testInvocationTest, duration, output),
_ => queuedMessage
};
if (!MessageBus.QueueMessage(transformedMessage))
{
return(aggregatedResult);
}
}
}
}while (pendingRestart);
return(aggregatedResult);
}
}
}
