public static void TakeMemoryDump(this Process process, string outputFolderPath, ITestOutputHelper output)
{
// this environment variable is set by Github Actions CI to `true` https://docs.github.com/en/actions/learn-github-actions/environment-variables
string ciEnvVar = Environment.GetEnvironmentVariable("CI");
if (!bool.TryParse(ciEnvVar, out var result) || !result)
{
output.WriteLine("^^^^^^^^^^^^^^^^^^^^^^ Currently not running in Github Actions CI. No memory dump will be taken.");
return;
}
output.WriteLine($"^^^^^^^^^^^^^^^^^^^^^^ Taking memory dump of process Id {process.Id}...");
using var processDump = new Process();
if (EnvironmentHelper.IsRunningOnWindows())
{
// In Github Actions CI, we downloaded, extracted procdump. We also add its folder to the PATH
processDump.StartInfo.FileName = Environment.Is64BitProcess ? "procdump64.exe" : "procdump.exe";
processDump.StartInfo.Arguments = $@"-ma {process.Id} -accepteula";
}
else
{
processDump.StartInfo.FileName = "dotnet-dump";
processDump.StartInfo.Arguments = $"collect --process-id {process.Id}";
}
processDump.StartInfo.UseShellExecute = false;
processDump.StartInfo.CreateNoWindow = true;
processDump.StartInfo.RedirectStandardOutput = true;
processDump.StartInfo.RedirectStandardError = true;
processDump.StartInfo.RedirectStandardInput = false;
processDump.StartInfo.WorkingDirectory = outputFolderPath;
processDump.Start();
using var helper = new ProcessHelper(processDump);
bool ranToCompletion = processDump.WaitForExit(MemoryDumpDurationMs) && helper.Drain(MemoryDumpDurationMs / 2);
if (!ranToCompletion)
{
output.WriteLine(" Failed to take a memory dump.");
if (!processDump.HasExited)
{
output.WriteLine($" Dumping tool (Id {processDump.Id}) has not exited. Terminating it.");
try
{
processDump.KillTree();
}
catch
{
// do nothing
}
}
}
else
{
output.WriteLine($" Memory dump successfully taken for process {process.Id}");
}
var standardOutput = helper.StandardOutput;
if (!string.IsNullOrWhiteSpace(standardOutput))
{
output.WriteLine($" Memory dump tool output: {Environment.NewLine}{standardOutput}");
}
var errorOutput = helper.ErrorOutput;
if (!string.IsNullOrWhiteSpace(errorOutput))
{
output.WriteLine($" Memory dump tool error: {Environment.NewLine}{errorOutput}");
}
}
private void RunTest(int agentPort)
{
(var executor, var arguments) = BuildTestCommandLine();
using var process = new Process();
SetEnvironmentVariables(process.StartInfo.EnvironmentVariables, agentPort);
process.StartInfo.FileName = executor;
process.StartInfo.Arguments = arguments;
process.StartInfo.UseShellExecute = false;
process.StartInfo.CreateNoWindow = true;
process.StartInfo.RedirectStandardOutput = true;
process.StartInfo.RedirectStandardError = true;
process.StartInfo.RedirectStandardInput = false;
process.Start();
using var processHelper = new ProcessHelper(process);
var ranToCompletion = process.WaitForExit((int)_maxTestRunDuration.TotalMilliseconds) && processHelper.Drain((int)_maxTestRunDuration.TotalMilliseconds / 2);
var standardOutput = processHelper.StandardOutput;
var errorOutput = processHelper.ErrorOutput;
if (!ranToCompletion)
{
if (!process.HasExited)
{
process.GetAllThreadsStack(_testBaseOutputDir, _output);
process.TakeMemoryDump(_testBaseOutputDir, _output);
try
{
process.KillTree();
}
catch
{
// do nothing
}
_output.WriteLine($"The test {_appName} is running for too long (more than {_maxTestRunDuration.TotalSeconds} seconds) or was lost.");
_output.WriteLine(standardOutput);
_output.WriteLine(errorOutput);
throw new TimeoutException($"The test {_appName} is running for too long or was lost");
}
}
if (!string.IsNullOrWhiteSpace(standardOutput))
{
_output.WriteLine($"[TestRunner] Standard output: {standardOutput}");
Assert.False(standardOutput.Contains("[Error]"), "An error occured during the test. See the standard output above.");
}
if (!string.IsNullOrWhiteSpace(errorOutput))
{
_output.WriteLine($"[TestRunner] Error output: {errorOutput}");
Assert.False(errorOutput.Contains("[Error]"), "An error occured during the test. See the error output above.");
}
Assert.True(
0 == process.ExitCode,
$"Exit code of \"{Path.GetFileName(process.StartInfo?.FileName ?? string.Empty)}\" should be 0 instead of {process.ExitCode} (= 0x{process.ExitCode.ToString("X")})");
}