void ITestDiscoverer.DiscoverTests(IEnumerable <string> sources, IDiscoveryContext discoveryContext, IMessageLogger logger, ITestCaseDiscoverySink discoverySink)
{
Guard.ArgumentNotNull("sources", sources);
Guard.ArgumentNotNull("logger", logger);
Guard.ArgumentNotNull("discoverySink", discoverySink);
Guard.ArgumentValid("sources", "AppX not supported for discovery", !ContainsAppX(sources));
var stopwatch = Stopwatch.StartNew();
var loggerHelper = new LoggerHelper(logger, stopwatch);
PrintHeader(loggerHelper);
var runSettings = RunSettings.Parse(discoveryContext?.RunSettings?.SettingsXml);
if (!runSettings.IsMatchingTargetFramework())
{
return;
}
var testPlatformContext = new TestPlatformContext
{
// Discovery from command line (non designmode) never requires source information
// since there is no session or command line runner doesn't send back VSTestCase objects
// back to adapter.
RequireSourceInformation = runSettings.CollectSourceInformation,
// Command line runner could request for Discovery in case of running specific tests. We need
// the XunitTestCase serialized in this scenario.
RequireXunitTestProperty = true
};
DiscoverTests(
sources, loggerHelper, testPlatformContext, runSettings,
(source, discoverer, discoveryOptions) => new VsDiscoverySink(source, discoverer, loggerHelper, discoverySink, discoveryOptions, testPlatformContext, () => cancelled)
);
}
void RunTestsInAssembly(IRunContext runContext,
IFrameworkHandle frameworkHandle,
LoggerHelper logger,
TestPlatformContext testPlatformContext,
RunSettings runSettings,
IMessageSinkWithTypes reporterMessageHandler,
AssemblyRunInfo runInfo)
{
if (cancelled)
{
return;
}
var assemblyDisplayName = "(unknown assembly)";
try
{
var assembly = new XunitProjectAssembly {
AssemblyFilename = runInfo.AssemblyFileName
};
var assemblyFileName = runInfo.AssemblyFileName;
assemblyDisplayName = Path.GetFileNameWithoutExtension(assemblyFileName);
var configuration = runInfo.Configuration;
var shadowCopy = configuration.ShadowCopyOrDefault;
var appDomain = assembly.Configuration.AppDomain ?? AppDomainDefaultBehavior;
var longRunningSeconds = assembly.Configuration.LongRunningTestSecondsOrDefault;
if (runSettings.DisableAppDomain)
{
appDomain = AppDomainSupport.Denied;
}
#if WINDOWS_UAP
// For AppX Apps, use the package location
assemblyFileName = Path.Combine(Windows.ApplicationModel.Package.Current.InstalledLocation.Path, Path.GetFileName(assemblyFileName));
#endif
var diagnosticSink = DiagnosticMessageSink.ForDiagnostics(logger, assemblyDisplayName, runInfo.Configuration.DiagnosticMessagesOrDefault);
var diagnosticMessageSink = MessageSinkAdapter.Wrap(diagnosticSink);
using (var controller = new XunitFrontController(appDomain, assemblyFileName, shadowCopy: shadowCopy, diagnosticMessageSink: diagnosticMessageSink))
{
var testCasesMap = new Dictionary <string, TestCase>();
var testCases = new List <ITestCase>();
if (runInfo.TestCases == null || !runInfo.TestCases.Any())
{
// Discover tests
AssemblyDiscoveredInfo assemblyDiscoveredInfo = new AssemblyDiscoveredInfo();
DiscoverTestsInSource(controller, logger, testPlatformContext, runSettings,
(source, discoverer, discoveryOptions) => new VsExecutionDiscoverySink(() => cancelled),
(source, discoverer, discoveryOptions, visitor) =>
{
if (discoveryOptions.GetInternalDiagnosticMessagesOrDefault())
{
foreach (var testCase in visitor.TestCases)
{
logger.Log(testCase, "Discovered [execution] test case '{0}' (ID = '{1}')",
testCase.DisplayName, testCase.UniqueID);
}
}
assemblyDiscoveredInfo = new AssemblyDiscoveredInfo
{
AssemblyFileName = source,
DiscoveredTestCases = GetVsTestCases(source, discoverer, visitor, logger, testPlatformContext)
};
},
assemblyFileName,
shadowCopy,
configuration
);
if (assemblyDiscoveredInfo.DiscoveredTestCases == null || !assemblyDiscoveredInfo.DiscoveredTestCases.Any())
{
if (configuration.InternalDiagnosticMessagesOrDefault)
{
logger.LogWarning("Skipping '{0}' since no tests were found during discovery [execution].", assemblyDiscoveredInfo.AssemblyFileName);
}
return;
}
// Filter tests
var traitNames = new HashSet <string>(assemblyDiscoveredInfo.DiscoveredTestCases.SelectMany(testCase => testCase.TraitNames));
var filter = new TestCaseFilter(runContext, logger, assemblyDiscoveredInfo.AssemblyFileName, traitNames);
var filteredTestCases = assemblyDiscoveredInfo.DiscoveredTestCases.Where(dtc => filter.MatchTestCase(dtc.VSTestCase)).ToList();
foreach (var filteredTestCase in filteredTestCases)
{
var uniqueID = filteredTestCase.UniqueID;
if (testCasesMap.ContainsKey(uniqueID))
{
logger.LogWarning(filteredTestCase.TestCase, "Skipping test case with duplicate ID '{0}' ('{1}' and '{2}')", uniqueID, testCasesMap[uniqueID].DisplayName, filteredTestCase.VSTestCase.DisplayName);
}
else
{
testCasesMap.Add(uniqueID, filteredTestCase.VSTestCase);
testCases.Add(filteredTestCase.TestCase);
}
}
}
else
{
try
{
var serializations = runInfo.TestCases
.Select(tc => tc.GetPropertyValue <string>(SerializedTestCaseProperty, null))
.ToList();
if (configuration.InternalDiagnosticMessagesOrDefault)
{
logger.LogWithSource(runInfo.AssemblyFileName, "Deserializing {0} test case(s):{1}{2}",
serializations.Count,
Environment.NewLine,
string.Join(Environment.NewLine, serializations.Select(x => $" {x}")));
}
var deserializedTestCasesByUniqueId = controller.BulkDeserialize(serializations);
if (deserializedTestCasesByUniqueId == null)
{
logger.LogErrorWithSource(assemblyFileName, "Received null response from BulkDeserialize");
}
else
{
for (int idx = 0; idx < runInfo.TestCases.Count; ++idx)
{
try
{
var kvp = deserializedTestCasesByUniqueId[idx];
var vsTestCase = runInfo.TestCases[idx];
if (kvp.Value == null)
{
logger.LogErrorWithSource(assemblyFileName, "Test case {0} failed to deserialize: {1}", vsTestCase.DisplayName, kvp.Key);
}
else
{
testCasesMap.Add(kvp.Key, vsTestCase);
testCases.Add(kvp.Value);
}
}
catch (Exception ex)
{
logger.LogErrorWithSource(assemblyFileName, "Catastrophic error deserializing item #{0}: {1}", idx, ex);
}
}
}
}
catch (Exception ex)
{
logger.LogWarningWithSource(assemblyFileName, "Catastrophic error during deserialization: {0}", ex);
}
}
// Execute tests
var executionOptions = TestFrameworkOptions.ForExecution(runInfo.Configuration);
if (runSettings.DisableParallelization)
{
executionOptions.SetSynchronousMessageReporting(true);
executionOptions.SetDisableParallelization(true);
}
reporterMessageHandler.OnMessage(new TestAssemblyExecutionStarting(assembly, executionOptions));
using (var vsExecutionSink = new VsExecutionSink(reporterMessageHandler, frameworkHandle, logger, testCasesMap, executionOptions, () => cancelled))
{
IExecutionSink resultsSink = vsExecutionSink;
if (longRunningSeconds > 0)
{
resultsSink = new DelegatingLongRunningTestDetectionSink(resultsSink, TimeSpan.FromSeconds(longRunningSeconds), diagnosticSink);
}
controller.RunTests(testCases, resultsSink, executionOptions);
resultsSink.Finished.WaitOne();
reporterMessageHandler.OnMessage(new TestAssemblyExecutionFinished(assembly, executionOptions, resultsSink.ExecutionSummary));
}
}
}
catch (Exception ex)
{
logger.LogError("{0}: Catastrophic failure: {1}", assemblyDisplayName, ex);
}
}
private bool DiscoverTestsInSource <TVisitor>(XunitFrontController framework,
LoggerHelper logger,
TestPlatformContext testPlatformContext,
RunSettings runSettings,
Func <string, ITestFrameworkDiscoverer, ITestFrameworkDiscoveryOptions, TVisitor> visitorFactory,
Action <string, ITestFrameworkDiscoverer, ITestFrameworkDiscoveryOptions, TVisitor> visitComplete,
string assemblyFileName,
bool shadowCopy,
TestAssemblyConfiguration configuration)
where TVisitor : IVsDiscoverySink, IDisposable
{
if (cancelled)
{
return(false);
}
var fileName = "(unknown assembly)";
try
{
var reporterMessageHandler = GetRunnerReporter(logger, runSettings, new[] { assemblyFileName }).CreateMessageHandler(new VisualStudioRunnerLogger(logger));
var assembly = new XunitProjectAssembly {
AssemblyFilename = assemblyFileName
};
fileName = Path.GetFileNameWithoutExtension(assemblyFileName);
if (!IsXunitTestAssembly(assemblyFileName))
{
if (configuration.DiagnosticMessagesOrDefault)
{
logger.Log("Skipping: {0} (no reference to xUnit.net)", fileName);
}
}
else
{
var targetFramework = framework.TargetFramework;
if (targetFramework.StartsWith("MonoTouch", StringComparison.OrdinalIgnoreCase) ||
targetFramework.StartsWith("MonoAndroid", StringComparison.OrdinalIgnoreCase) ||
targetFramework.StartsWith("Xamarin.iOS", StringComparison.OrdinalIgnoreCase))
{
if (configuration.DiagnosticMessagesOrDefault)
{
logger.Log("Skipping: {0} (unsupported target framework '{1}')", fileName, targetFramework);
}
}
else
{
var discoveryOptions = TestFrameworkOptions.ForDiscovery(configuration);
using (var visitor = visitorFactory(assemblyFileName, framework, discoveryOptions))
{
var totalTests = 0;
var usingAppDomains = framework.CanUseAppDomains && AppDomainDefaultBehavior != AppDomainSupport.Denied;
reporterMessageHandler.OnMessage(new TestAssemblyDiscoveryStarting(assembly, usingAppDomains, shadowCopy, discoveryOptions));
try
{
framework.Find(testPlatformContext.RequireSourceInformation, visitor, discoveryOptions);
totalTests = visitor.Finish();
visitComplete?.Invoke(assemblyFileName, framework, discoveryOptions, visitor);
}
finally
{
reporterMessageHandler.OnMessage(new TestAssemblyDiscoveryFinished(assembly, discoveryOptions, totalTests, totalTests));
}
}
}
}
}
catch (Exception e)
{
var ex = e.Unwrap();
if (ex is InvalidOperationException)
{
logger.LogWarning("Skipping: {0} ({1})", fileName, ex.Message);
}
else if (ex is FileNotFoundException fileNotFound)
{
logger.LogWarning("Skipping: {0} (could not find dependent assembly '{1}')", fileName, Path.GetFileNameWithoutExtension(fileNotFound.FileName));
}
#if !WINDOWS_UAP
else if (ex is FileLoadException fileLoad)
{
logger.LogWarning("Skipping: {0} (could not find dependent assembly '{1}')", fileName, Path.GetFileNameWithoutExtension(fileLoad.FileName));
}
#endif
else
{
logger.LogWarning("Exception discovering tests from {0}: {1}", fileName, ex);
}
}
return(true);
}