private string GetDevEnvPath()
{
var version = new Version(_visualStudioVersion);
if (version.Major >= 15)
{
return(VsSetup.GetDevEnv(version));
}
var varName = "VS" + _visualStudioVersion.Replace(".", "") + "COMNTOOLS";
var varValue = Environment.GetEnvironmentVariable(varName);
if (string.IsNullOrEmpty(varValue) || !Directory.Exists(varValue))
{
throw new ArgumentException(string.Format("Visual Studio Version '{0}' path was not found in environment variable '{1}'.", _visualStudioVersion, varName));
}
// Path is like: C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\Tools\..\IDE\devenv.exe
// We need to move up one level and down to IDE for the final devenv path.
var path = Path.GetFullPath(Path.Combine(varValue, @"..\IDE\devenv.exe"));
if (!File.Exists(path))
{
throw new ArgumentException(string.Format("Visual Studio Version '{0}' executable was not found at the expected location '{1}' according to the environment variable '{2}'.", _visualStudioVersion, path, varName));
}
return(path);
}
public async Task <RunSummary> RunAsync(VsixTestCase vsixTest, IMessageBus messageBus, ExceptionAggregator aggregator)
{
// We don't apply retry behavior when a debugger is attached, since that
// typically means the developer is actually debugging a failing test.
#if !DEBUG
if (Debugger.IsAttached)
{
return(await RunAsyncCore(vsixTest, messageBus, aggregator));
}
#endif
var bufferBus = new InterceptingMessageBus();
var summary = await RunAsyncCore(vsixTest, bufferBus, aggregator);
var shouldRecycle = vsixTest.RecycleOnFailure.GetValueOrDefault();
// Special case for MEF cache corruption, clear cache and restart the test.
if (summary.Failed != 0 && (
(aggregator.HasExceptions && aggregator.ToException().GetType().FullName == "Microsoft.VisualStudio.ExtensibilityHosting.InvalidMEFCacheException") ||
(bufferBus.Messages.OfType <IFailureInformation>().Where(fail => fail.ExceptionTypes.Any(type => type == "Microsoft.VisualStudio.ExtensibilityHosting.InvalidMEFCacheException")).Any())
))
{
shouldRecycle = true;
try
{
var path = VsSetup.GetComponentModelCachePath(_devEnvPath, new Version(_visualStudioVersion), _rootSuffix);
if (Directory.Exists(path))
{
Directory.Delete(path, true);
}
}
catch (IOException)
{
s_tracer.TraceEvent(TraceEventType.Warning, 0, "Failed to clear MEF cache after a failed test caused by an InvalidMEFCacheException.");
}
}
if (summary.Failed != 0 && shouldRecycle)
{
Recycle();
aggregator.Clear();
summary = await RunAsyncCore(vsixTest, messageBus, aggregator);
}
else
{
// Dispatch messages from the first run to actual bus.
foreach (var msg in bufferBus.Messages)
{
messageBus.QueueMessage(msg);
}
}
return(summary);
}