/// <summary>
/// Creates a new thread task but does not start it.
/// </summary>
/// <remarks>
/// <para>
/// There is no need to call <see cref="WatchTask" /> on the returned task.
/// </para>
/// </remarks>
/// <param name="name">The name of the task, or null to create a new name based
/// on the method associated with the action.</param>
/// <param name="action">The action to perform.</param>
/// <returns>The new thread task.</returns>
/// <exception cref="ArgumentNullException">Thrown if <paramref name="action"/> is null.</exception>
public static ThreadTask CreateThreadTask(string name, Action action)
{
if (action == null)
throw new ArgumentNullException("action");
var task = new TestEnvironmentAwareThreadTask(GetTaskName(name, action), action, null);
WatchTask(task);
return task;
}
public void Run()
{
var test = (PatternTest)testCommand.Test;
TestContextCookie? parentContextCookie = null;
try
{
if (parentContext != null)
parentContextCookie = parentContext.Enter();
// The first time we call Run, we check whether the ApartmentState of the
// Thread is correct. If it is not, then we start a new thread and reenter
// with a flag set to skip initial processing.
if (!reentered)
{
if (executor.progressMonitor.IsCanceled)
{
result = new TestResult(TestOutcome.Canceled);
return;
}
if (!testCommand.AreDependenciesSatisfied())
{
ITestContext context = testCommand.StartPrimaryChildStep(parentTestStep);
context.LogWriter.Warnings.WriteLine("Skipped due to an unsatisfied test dependency.");
result = context.FinishStep(TestOutcome.Skipped, null);
return;
}
executor.progressMonitor.SetStatus(test.Name);
if (test.ApartmentState != ApartmentState.Unknown
&& Thread.CurrentThread.GetApartmentState() != test.ApartmentState)
{
reentered = true;
ThreadTask task = new TestEnvironmentAwareThreadTask("Test Runner " + test.ApartmentState,
(Action) Run, executor.environmentManager);
task.ApartmentState = test.ApartmentState;
task.Run(null);
if (!task.Result.HasValue)
{
throw new ModelException(
String.Format("Failed to perform action in thread with overridden apartment state {0}.",
test.ApartmentState), task.Result.Exception);
}
return;
}
}
// Actually run the test.
// Yes, this is a monstrously long method due to the inlining optimzation to minimize stack depth.
using (Sandbox sandbox = parentSandbox.CreateChild())
{
using (new ProcessIsolation())
{
using (sandbox.StartTimer(test.TimeoutFunc()))
{
TestOutcome outcome;
PatternTestActions testActions = test.TestActions;
if (testActionsDecorator != null)
outcome = testActionsDecorator(sandbox, ref testActions);
else
outcome = TestOutcome.Passed;
if (outcome.Status == TestStatus.Passed)
{
PatternTestStep primaryTestStep = new PatternTestStep(test, parentTestStep);
PatternTestState testState = new PatternTestState(primaryTestStep, testActions,
executor.converter, executor.formatter, testCommand.IsExplicit);
bool invisibleTest = true;
outcome = outcome.CombineWith(sandbox.Run(TestLog.Writer,
new BeforeTestAction(testState).Run, "Before Test"));
if (outcome.Status == TestStatus.Passed)
{
bool reusePrimaryTestStep = !testState.BindingContext.HasBindings;
if (!reusePrimaryTestStep)
primaryTestStep.IsTestCase = false;
invisibleTest = false;
TestContext primaryContext = TestContext.PrepareContext(
testCommand.StartStep(primaryTestStep), sandbox);
testState.SetInContext(primaryContext);
using (primaryContext.Enter())
{
primaryContext.LifecyclePhase = LifecyclePhases.Initialize;
outcome = outcome.CombineWith(primaryContext.Sandbox.Run(TestLog.Writer,
new InitializeTestAction(testState).Run, "Initialize"));
}
if (outcome.Status == TestStatus.Passed)
{
var actions = new List<RunTestDataItemAction>();
try
{
foreach (IDataItem bindingItem in testState.BindingContext.GetItems(!executor.options.SkipDynamicTests))
actions.Add(new RunTestDataItemAction(executor, testCommand, testState, primaryContext,
reusePrimaryTestStep, bindingItem));
if (actions.Count == 0)
{
TestLog.Warnings.WriteLine("Test skipped because it is parameterized but no data was provided.");
outcome = TestOutcome.Skipped;
}
else
{
if (actions.Count == 1 || ! test.IsParallelizable)
{
foreach (var action in actions)
action.Run();
}
else
{
executor.scheduler.Run(GenericCollectionUtils.ConvertAllToArray<RunTestDataItemAction, Action>(
actions, action => action.Run));
}
TestOutcome combinedOutcome = TestOutcome.Passed;
foreach (var action in actions)
combinedOutcome = combinedOutcome.CombineWith(action.Outcome);
outcome = outcome.CombineWith(reusePrimaryTestStep ? combinedOutcome : combinedOutcome.Generalize());
}
}
catch (TestException ex)
{
if (ex.Outcome.Status == TestStatus.Failed)
{
TestLog.Failures.WriteException(ex, String.Format("An exception occurred while getting data items for test '{0}'.", testState.Test.FullName));
}
else
{
TestLog.Warnings.WriteException(ex);
}
outcome = ex.Outcome;
}
catch (Exception ex)
{
TestLog.Failures.WriteException(ex, String.Format("An exception occurred while getting data items for test '{0}'.", testState.Test.FullName));
outcome = TestOutcome.Error;
}
}
primaryContext.SetInterimOutcome(outcome);
using (primaryContext.Enter())
{
primaryContext.LifecyclePhase = LifecyclePhases.Dispose;
outcome = outcome.CombineWith(primaryContext.Sandbox.Run(TestLog.Writer,
new DisposeTestAction(testState).Run, "Dispose"));
}
result = primaryContext.FinishStep(outcome);
}
outcome = outcome.CombineWith(sandbox.Run(TestLog.Writer,
new AfterTestAction(testState).Run, "After Test"));
if (invisibleTest)
result = PublishOutcomeFromInvisibleTest(testCommand, primaryTestStep, outcome);
}
}
}
}
}
catch (Exception ex)
{
result = ReportTestError(testCommand, parentTestStep, ex, String.Format("An exception occurred while preparing to run test '{0}'.", test.FullName));
}
finally
{
if (parentContextCookie.HasValue)
parentContextCookie.Value.ExitContext();
executor.progressMonitor.SetStatus("");
executor.progressMonitor.Worked(1);
}
}
/// <inheritdoc />
protected override void DecorateTest(IPatternScope scope, ICodeElementInfo codeElement)
{
scope.TestBuilder.TestInstanceActions.RunTestInstanceBodyChain.Around((state, inner) =>
{
TaskContainer container = new TaskContainer();
try
{
TestOutcome[] threadOutcomes = new TestOutcome[numThreads];
TestContext context = TestContext.CurrentContext;
for (int i = 0; i < numThreads; i++)
{
int index = i;
string name = String.Format("Threaded Repetition #{0}", index + 1);
var task = new TestEnvironmentAwareThreadTask(name, delegate
{
TestContext threadContext = TestStep.RunStep(name, delegate
{
TestOutcome innerOutcome = inner(state);
if (innerOutcome.Status != TestStatus.Passed)
throw new SilentTestException(innerOutcome);
}, null, false, codeElement);
threadOutcomes[index] = threadContext.Outcome;
}, null);
task.Terminated += delegate
{
if (! task.Result.HasValue)
{
threadOutcomes[index] = TestOutcome.Error;
context.LogWriter.Default.WriteException(task.Result.Exception,
String.Format("An exception occurred while starting Threaded Repetition #{0}.",
index));
}
};
container.Watch(task);
task.Start();
}
container.JoinAll(null);
TestOutcome outcome = TestOutcome.Passed;
int passedCount = 0;
foreach (TestOutcome threadOutcome in threadOutcomes)
{
outcome = outcome.CombineWith(threadOutcome);
if (threadOutcome.Status == TestStatus.Passed)
passedCount += 1;
}
context.LogWriter.Default.WriteLine(String.Format("{0} of {1} threaded repetitions passed.",
passedCount, numThreads));
return outcome;
}
finally
{
container.AbortAll();
container.JoinAll(null);
}
});
}
