private bool InitializeForTest(ITestElement testElement, IRunContext runContext) {
var runId = runContext.RunConfig.TestRun.Id;
TestResultMessage failure = null;
try {
var vars = new TestProperties(testElement, runContext.RunConfig.TestRun.RunConfiguration);
InitializeWorker(vars, runContext, testElement).GetAwaiter().GetResult();
_remote.Initialize(_runContext);
AttachDebuggerIfNeeded(runContext, _ide, vars);
} catch (ArgumentException ex) {
failure = GetFailure(ex, runId, testElement);
} catch (TimeoutException ex) {
failure = GetFailure(ex, runId, testElement);
} catch (InvalidOperationException ex) {
failure = GetFailure(ex, runId, testElement);
} catch (Exception ex) {
failure = GetFailure(ex, runId, testElement);
failure.SystemException = ex;
}
if (failure != null) {
runContext.ResultSink.AddResult(failure);
runContext.StopTestRun();
return false;
}
return true;
}
private void AttachDebuggerIfNeeded(IRunContext runContext, Internal.VisualStudio ide, TestProperties vars) {
var config = runContext.RunConfig.TestRun.RunConfiguration;
if (!config.IsExecutedUnderDebugger || ide == null) {
return;
}
// If we're debugging, tell our host VS to attach to the new VS
// instance we just started.
string strValue;
bool boolValue;
bool mixedMode = vars.TryGetValue(VSTestProperties.VSDebugMixedMode.Key, out strValue) &&
bool.TryParse(strValue, out boolValue) &&
boolValue;
TesterDebugAttacherShared.AttachDebugger(ide.ProcessId, mixedMode);
}
/// <summary>
/// Implements initialization. This is called by ITestAdapter.Initialize
/// (a synchronous function) which will block until this function is
/// completed.
/// </summary>
/// <param name="runContext">
/// The context for the current test run.
/// </param>
private async Task InitializeWorker(
TestProperties vars,
IRunContext runContext,
ITestElement currentTest = null
) {
string application, executable, versionString, hive;
Version version;
string launchTimeoutInSecondsString;
int launchTimeoutInSeconds;
// VSApplication is the registry key name like 'VisualStudio'
application = vars[VSTestProperties.VSApplication.Key] ?? VSTestProperties.VSApplication.VisualStudio;
// VSExecutableName is the executable name like 'devenv'
if (!vars.TryGetValue(VSTestProperties.VSExecutable.Key, out executable)) {
executable = VSTestProperties.VSExecutable.DevEnv;
}
if (!string.IsNullOrEmpty(executable) &&
string.IsNullOrEmpty(Path.GetExtension(executable))) {
executable = Path.ChangeExtension(executable, ".exe");
}
// VSVersion is the version like '12.0'
if (!vars.TryGetValue(VSTestProperties.VSVersion.Key, out versionString) ||
!Version.TryParse(versionString, out version)) {
version = new Version(int.Parse(AssemblyVersionInfo.VSVersion), 0);
}
// VSHive is the optional hive like 'Exp'
hive = vars[VSTestProperties.VSHive.Key];
if (!vars.TryGetValue(VSTestProperties.VSLaunchTimeoutInSeconds.Key, out launchTimeoutInSecondsString) ||
!int.TryParse(launchTimeoutInSecondsString, out launchTimeoutInSeconds)) {
launchTimeoutInSeconds = 30;
}
if (string.IsNullOrEmpty(application) || string.IsNullOrEmpty(executable) || version == null) {
throw new ArgumentException(string.Format(
Resources.MissingConfigurationValues,
application ?? "(null)",
executable ?? "(null)",
version != null ? version.ToString() : "(null)",
hive ?? "(default)"
));
}
_mockVs = (application == VSTestProperties.VSApplication.Mock);
if (_mockVs) {
_remote = new TesteeTestAdapter();
_remote.Initialize(_runContext);
// In the mock case tester and testee are the same process, therefore
// VSTestContext is in our process too. So we can just set this value
// directly here.
VSTestContext.IsMock = true;
return;
}
// TODO: Detect and perform first run of VS if necessary.
// The first time a VS hive is run, the user sees a dialog allowing
// them to select settings such as the theme. We can avoid this by
// running devenv.exe /resetSettings <path to profile.settings>
// first, though it is not trivial to detect when this is necessary.
// Without having done this, all tests will time out. For now, the
// user is responsible for running VS at least once before
// attempting to execute tests.
var cts = new CancellationTokenSource(TimeSpan.FromSeconds(launchTimeoutInSeconds));
try {
await Connect(application, executable, version, hive, runContext, currentTest, cts.Token);
} catch (OperationCanceledException ex) {
throw new TimeoutException(string.Format(Resources.VSLaunchTimeout, launchTimeoutInSeconds), ex);
} catch (Exception ex) {
throw new InvalidOperationException(
string.Format(Resources.VSFailedToLaunch, application, executable, version, hive),
ex
);
}
}
