public async Task TestCancel()
{
const int SecondsToRun = 20;
using (TestHostContext hc = new TestHostContext(this))
using (var tokenSource = new CancellationTokenSource())
{
Tracing trace = hc.GetTrace();
var processInvoker = new ProcessInvokerWrapper();
processInvoker.Initialize(hc);
Stopwatch watch = Stopwatch.StartNew();
#if OS_WINDOWS
Task execTask = processInvoker.ExecuteAsync("", "cmd.exe", $"/c \"choice /T {SecondsToRun} /D y\"", null, tokenSource.Token);
#endif
#if (OS_OSX || OS_LINUX)
Task execTask = processInvoker.ExecuteAsync("", "bash", $"-c \"sleep {SecondsToRun}s\"", null, tokenSource.Token);
#endif
await Task.Delay(500);
tokenSource.Cancel();
await Task.WhenAny(execTask);
Assert.True(execTask.IsCompleted);
Assert.True(!execTask.IsFaulted);
Assert.True(execTask.IsCanceled);
watch.Stop();
var elapsedSeconds = watch.ElapsedMilliseconds / 1000;
//if cancellation fails, then execution time is more than 10 seconds
Assert.True(elapsedSeconds < SecondsToRun / 2, $"cancellation failed, because task took too long to run. {elapsedSeconds}");
}
}
public async Task EnableWorkerCommandsByDefault()
{
using (TestHostContext hc = new TestHostContext(this))
{
Tracing trace = hc.GetTrace();
Int32 exitCode = -1;
List <string> stdout = new List <string>();
var processInvoker = new ProcessInvokerWrapper();
processInvoker.OutputDataReceived += (object sender, ProcessDataReceivedEventArgs e) =>
{
stdout.Add(e.Data);
};
processInvoker.Initialize(hc);
exitCode = (TestUtil.IsWindows())
? await processInvoker.ExecuteAsync("", "powershell.exe", $@"-NoLogo -Sta -NoProfile -NonInteractive -ExecutionPolicy Unrestricted -Command ""Write-Host '##vso somecommand'""", null, CancellationToken.None)
: await processInvoker.ExecuteAsync("", "bash", "-c \"echo '##vso somecommand'\"", null, CancellationToken.None);
trace.Info("Exit Code: {0}", exitCode);
Assert.Equal(0, exitCode);
Assert.True(stdout.Contains("##vso somecommand"), "##vso commands should not be escaped.");
}
}
public async Task RedirectSTDINKeepStreamOpen()
{
using (TestHostContext hc = new TestHostContext(this))
{
Tracing trace = hc.GetTrace();
CancellationTokenSource cancellationTokenSource = new CancellationTokenSource();
Int32 exitCode = -1;
Channel <string> redirectSTDIN = Channel.CreateUnbounded <string>(new UnboundedChannelOptions()
{
SingleReader = true, SingleWriter = true
});
List <string> stdout = new List <string>();
redirectSTDIN.Writer.TryWrite("Single line of STDIN");
var processInvoker = new ProcessInvokerWrapper();
processInvoker.OutputDataReceived += (object sender, ProcessDataReceivedEventArgs e) =>
{
stdout.Add(e.Data);
};
processInvoker.Initialize(hc);
#if OS_WINDOWS
var proc = processInvoker.ExecuteAsync("", "cmd.exe", "/c more", null, false, null, false, redirectSTDIN, false, true, cancellationTokenSource.Token);
#else
var proc = processInvoker.ExecuteAsync("", "bash", "-c \"read input; echo $input; read input; echo $input; read input; echo $input;\"", null, false, null, false, redirectSTDIN, false, true, cancellationTokenSource.Token);
#endif
redirectSTDIN.Writer.TryWrite("More line of STDIN");
redirectSTDIN.Writer.TryWrite("More line of STDIN");
await Task.Delay(100);
redirectSTDIN.Writer.TryWrite("More line of STDIN");
redirectSTDIN.Writer.TryWrite("More line of STDIN");
await Task.Delay(100);
redirectSTDIN.Writer.TryWrite("More line of STDIN");
cancellationTokenSource.CancelAfter(100);
try
{
exitCode = await proc;
trace.Info("Exit Code: {0}", exitCode);
}
catch (Exception ex)
{
trace.Error(ex);
}
trace.Info("STDOUT: {0}", string.Join(Environment.NewLine, stdout));
Assert.True(stdout.Contains("More line of STDIN"), "STDIN should keep open and accept more inputs after first input line.");
}
}
public async Task RedirectSTDINCloseStream()
{
using (TestHostContext hc = new TestHostContext(this))
using (var redirectSTDIN = new InputQueue <string>())
{
Tracing trace = hc.GetTrace();
Int32 exitCode = -1;
List <string> stdout = new List <string>();
redirectSTDIN.Enqueue("Single line of STDIN");
using (var cancellationTokenSource = new CancellationTokenSource())
using (var processInvoker = new ProcessInvokerWrapper())
{
processInvoker.OutputDataReceived += (object sender, ProcessDataReceivedEventArgs e) =>
{
stdout.Add(e.Data);
};
processInvoker.Initialize(hc);
var proc = (TestUtil.IsWindows())
? processInvoker.ExecuteAsync("", "cmd.exe", "/c more", null, false, null, false, redirectSTDIN, false, false, cancellationTokenSource.Token)
: processInvoker.ExecuteAsync("", "bash", "-c \"read input; echo $input; read input; echo $input; read input; echo $input;\"", null, false, null, false, redirectSTDIN, false, false, cancellationTokenSource.Token);
redirectSTDIN.Enqueue("More line of STDIN");
redirectSTDIN.Enqueue("More line of STDIN");
await Task.Delay(100);
redirectSTDIN.Enqueue("More line of STDIN");
redirectSTDIN.Enqueue("More line of STDIN");
await Task.Delay(100);
redirectSTDIN.Enqueue("More line of STDIN");
cancellationTokenSource.CancelAfter(100);
try
{
exitCode = await proc;
trace.Info("Exit Code: {0}", exitCode);
}
catch (Exception ex)
{
trace.Error(ex);
}
trace.Info("STDOUT: {0}", string.Join(Environment.NewLine, stdout));
Assert.False(stdout.Contains("More line of STDIN"), "STDIN should be closed after first input line.");
}
}
}
public async Task OomScoreAdjIsWriten_Default()
{
// We are on a system that supports oom_score_adj in procfs as assumed by ProcessInvoker
string testProcPath = $"/proc/{Process.GetCurrentProcess().Id}/oom_score_adj";
if (File.Exists(testProcPath))
{
using (TestHostContext hc = new TestHostContext(this))
using (var tokenSource = new CancellationTokenSource())
{
Tracing trace = hc.GetTrace();
var processInvoker = new ProcessInvokerWrapper();
processInvoker.Initialize(hc);
int oomScoreAdj = -9999;
processInvoker.OutputDataReceived += (object sender, ProcessDataReceivedEventArgs e) =>
{
oomScoreAdj = int.Parse(e.Data);
tokenSource.Cancel();
};
try
{
var proc = await processInvoker.ExecuteAsync("", "bash", "-c \"cat /proc/$$/oom_score_adj\"", null, false, null, false, null, false, false,
highPriorityProcess : false,
cancellationToken : tokenSource.Token);
Assert.Equal(oomScoreAdj, 500);
}
catch (OperationCanceledException)
{
trace.Info("Caught expected OperationCanceledException");
}
}
}
}
public async Task TestCancel()
{
const int SecondsToRun = 20;
using (TestHostContext hc = new TestHostContext(this))
using (var tokenSource = new CancellationTokenSource())
{
Tracing trace = hc.GetTrace();
var processInvoker = new ProcessInvokerWrapper();
processInvoker.Initialize(hc);
Stopwatch watch = Stopwatch.StartNew();
Task execTask;
#if OS_WINDOWS
execTask = processInvoker.ExecuteAsync("", "cmd.exe", $"/c \"choice /T {SecondsToRun} /D y\"", null, tokenSource.Token);
#else
execTask = processInvoker.ExecuteAsync("", "bash", $"-c \"sleep {SecondsToRun}s\"", null, tokenSource.Token);
#endif
await Task.Delay(500);
tokenSource.Cancel();
try
{
await execTask;
}
catch (OperationCanceledException)
{
trace.Info("Get expected OperationCanceledException.");
}
Assert.True(execTask.IsCompleted);
Assert.True(!execTask.IsFaulted);
Assert.True(execTask.IsCanceled);
watch.Stop();
long elapsedSeconds = watch.ElapsedMilliseconds / 1000;
#if ARM
// if cancellation fails, then execution time is more than 15 seconds
// longer time to compensate for a slower ARM environment (e.g. Raspberry Pi)
long expectedSeconds = (SecondsToRun * 3) / 4;
#else
// if cancellation fails, then execution time is more than 10 seconds
long expectedSeconds = SecondsToRun / 2;
#endif
Assert.True(elapsedSeconds <= expectedSeconds, $"cancellation failed, because task took too long to run. {elapsedSeconds}");
}
}
public async Task SuccessExitsWithCodeZero()
{
using (TestHostContext hc = new TestHostContext(this))
{
Tracing trace = hc.GetTrace();
Int32 exitCode = -1;
var processInvoker = new ProcessInvokerWrapper();
processInvoker.Initialize(hc);
exitCode = (TestUtil.IsWindows())
? await processInvoker.ExecuteAsync("", "cmd.exe", "/c \"dir >nul\"", null, CancellationToken.None)
: await processInvoker.ExecuteAsync("", "bash", "-c echo .", null, CancellationToken.None);
trace.Info("Exit Code: {0}", exitCode);
Assert.Equal(0, exitCode);
}
}
public async Task SetCIEnv()
{
using (TestHostContext hc = new TestHostContext(this))
{
var existingCI = Environment.GetEnvironmentVariable("CI");
try
{
// Clear out CI and make sure process invoker sets it.
Environment.SetEnvironmentVariable("CI", null);
Tracing trace = hc.GetTrace();
Int32 exitCode = -1;
var processInvoker = new ProcessInvokerWrapper();
processInvoker.Initialize(hc);
var stdout = new List <string>();
var stderr = new List <string>();
processInvoker.OutputDataReceived += (object sender, ProcessDataReceivedEventArgs e) =>
{
trace.Info(e.Data);
stdout.Add(e.Data);
};
processInvoker.ErrorDataReceived += (object sender, ProcessDataReceivedEventArgs e) =>
{
trace.Info(e.Data);
stderr.Add(e.Data);
};
#if OS_WINDOWS
exitCode = await processInvoker.ExecuteAsync("", "cmd.exe", "/c \"echo %CI%\"", null, CancellationToken.None);
#else
exitCode = await processInvoker.ExecuteAsync("", "bash", "-c \"echo $CI\"", null, CancellationToken.None);
#endif
trace.Info("Exit Code: {0}", exitCode);
Assert.Equal(0, exitCode);
Assert.Equal("true", stdout.First(x => !string.IsNullOrWhiteSpace(x)));
}
finally
{
Environment.SetEnvironmentVariable("CI", existingCI);
}
}
}
public async Task SuccessExitsWithCodeZero()
{
using (TestHostContext hc = new TestHostContext(this))
{
Tracing trace = hc.GetTrace();
Int32 exitCode = -1;
var processInvoker = new ProcessInvokerWrapper();
processInvoker.Initialize(hc);
#if OS_WINDOWS
exitCode = await processInvoker.ExecuteAsync("", "cmd.exe", "/c \"dir >nul\"", null, CancellationToken.None);
#endif
#if (OS_OSX || OS_LINUX)
exitCode = await processInvoker.ExecuteAsync("", "bash", "-c echo .", null, CancellationToken.None);
#endif
trace.Info("Exit Code: {0}", exitCode);
Assert.Equal(0, exitCode);
}
}
public async Task DefaultsToCurrentSystemOemEncoding()
{
// This test verifies that the additional code pages encoding provider is registered.
// By default, only Unicode encodings, ASCII, and code page 28591 are supported. An
// additional provider must be registered to support the full set of encodings that
// were included in Full .NET prior to 4.6.
//
// For example, on an en-US box, this is required for loading the encoding for the
// default console output code page '437'. Without loading the correct encoding for
// code page IBM437, some characters cannot be translated correctly, e.g. write 'ç'
// from powershell.exe.
using (TestHostContext hc = new TestHostContext(this))
{
Tracing trace = hc.GetTrace();
var processInvoker = new ProcessInvokerWrapper();
processInvoker.Initialize(hc);
var stdout = new List <string>();
var stderr = new List <string>();
processInvoker.OutputDataReceived += (object sender, ProcessDataReceivedEventArgs e) =>
{
stdout.Add(e.Data);
};
processInvoker.ErrorDataReceived += (object sender, ProcessDataReceivedEventArgs e) =>
{
stderr.Add(e.Data);
};
await processInvoker.ExecuteAsync(
workingDirectory : "",
fileName : "powershell.exe",
arguments : $@"-NoLogo -Sta -NoProfile -NonInteractive -ExecutionPolicy Unrestricted -Command ""Write-Host 'From STDOUT ''ç''' ; Write-Error 'From STDERR ''ç'''""",
environment : null,
requireExitCodeZero : false,
cancellationToken : CancellationToken.None);
Assert.Equal(1, stdout.Count);
Assert.Equal("From STDOUT 'ç'", stdout[0]);
Assert.True(stderr.Count > 0);
Assert.True(stderr[0].Contains("From STDERR 'ç'"));
}
}
private static async Task CreateDirectoryReparsePoint(IHostContext context, string link, string target)
{
string fileName = (TestUtil.IsWindows())
? Environment.GetEnvironmentVariable("ComSpec")
: "/bin/ln";
string arguments = (TestUtil.IsWindows())
? $@"/c ""mklink /J ""{link}"" {target}"""""
: $@"-s ""{target}"" ""{link}""";
ArgUtil.File(fileName, nameof(fileName));
using (var processInvoker = new ProcessInvokerWrapper())
{
processInvoker.Initialize(context);
await processInvoker.ExecuteAsync(
workingDirectory : context.GetDirectory(WellKnownDirectory.Bin),
fileName : fileName,
arguments : arguments,
environment : null,
requireExitCodeZero : true,
cancellationToken : CancellationToken.None);
}
}
public async Task TestCancel()
{
const int SecondsToRun = 20;
using (TestHostContext hc = new TestHostContext(this))
using (var tokenSource = new CancellationTokenSource())
{
Tracing trace = hc.GetTrace();
using (var processInvoker = new ProcessInvokerWrapper())
{
processInvoker.Initialize(hc);
Stopwatch watch = Stopwatch.StartNew();
Task execTask = processInvoker.ExecuteAsync("", "bash", $"-c \"sleep {SecondsToRun}s\"", null, tokenSource.Token);
await Task.Delay(500);
tokenSource.Cancel();
try
{
await execTask;
}
catch (OperationCanceledException)
{
trace.Info("Get expected OperationCanceledException.");
}
Assert.True(execTask.IsCompleted);
Assert.True(!execTask.IsFaulted);
Assert.True(execTask.IsCanceled);
watch.Stop();
long elapsedSeconds = watch.ElapsedMilliseconds / 1000;
// if cancellation fails, then execution time is more than 15 seconds
long expectedSeconds = (SecondsToRun * 3) / 4;
Assert.True(elapsedSeconds <= expectedSeconds, $"cancellation failed, because task took too long to run. {elapsedSeconds}");
}
}
}