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Improve how to retrieve process ID #3794

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merged 2 commits into from
Jun 22, 2022
Merged

Improve how to retrieve process ID #3794

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e62d311
Improve how to retrieve process ID
Evangelink Jun 22, 2022
d9b20c0
Fix using
Evangelink Jun 22, 2022
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3 changes: 3 additions & 0 deletions .editorconfig
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Expand Up @@ -206,6 +206,9 @@ dotnet_diagnostic.CA1840.severity = warning # not default, increased severity to
# CA1041: Provide ObsoleteAttribute message
dotnet_diagnostic.CA1041.severity = warning # not default, increased severity to ensure it is applied

# CA1837: Use Environment.ProcessId instead of Process.GetCurrentProcess().Id
dotnet_diagnostic.CA1837.severity = warning # not default, increased severity to ensure it is applied

#### C# Coding Conventions ####

# var preferences
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4 changes: 4 additions & 0 deletions src/Microsoft.TestPlatform.CrossPlatEngine/Execution/BaseRunTests.cs
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Expand Up @@ -411,7 +411,11 @@ private bool RunTestInternalWithExecutors(IEnumerable<Tuple<Uri, string>> execut
EqtTrace.Verbose("Attaching to default test host.");

attachedToTestHost = true;
#if NET5_0_OR_GREATER
var pid = Environment.ProcessId;
#else
var pid = Process.GetCurrentProcess().Id;
#endif
if (!FrameworkHandle.AttachDebuggerToProcess(pid))
{
EqtTrace.Warning(
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9 changes: 8 additions & 1 deletion src/Microsoft.TestPlatform.CrossPlatEngine/PostProcessing/ArtifactProcessingManager.cs
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Expand Up @@ -65,7 +65,14 @@ public ArtifactProcessingManager(string? testSessionCorrelationId,
{
_testSessionCorrelationId = testSessionCorrelationId;
_processArtifactFolder = Path.Combine(_fileHelper.GetTempPath(), _testSessionCorrelationId);
_testSessionProcessArtifactFolder = Path.Combine(_processArtifactFolder, $"{Process.GetCurrentProcess().Id}_{Guid.NewGuid()}");
#if NET5_0_OR_GREATER
var pid = Environment.ProcessId;
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@MarcoRossignoli MarcoRossignoli Jun 22, 2022 •
edited
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is it cached by design?

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System.Diagnostics.Process.GetCurrentProcess().Id is expensive:

It allocates a Process instance, usually just to get the Id.
The Process instance needs to be disposed, which has a performance impact.
It's easy to forget to call Dispose() on the Process instance.
If nothing else besides Id uses the Process instance, then the linked size grows unnecessarily by increasing the graph of types referenced.
It is somewhat difficult to discover or find this API.
System.Environment.ProcessId avoids all the above.

#else
int pid;
using (var p = Process.GetCurrentProcess())
pid = p.Id;
#endif
_testSessionProcessArtifactFolder = Path.Combine(_processArtifactFolder, $"{pid}_{Guid.NewGuid()}");
}
}

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16 changes: 14 additions & 2 deletions src/Microsoft.TestPlatform.VsTestConsole.TranslationLayer/VsTestConsoleWrapper.cs
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Expand Up @@ -3,7 +3,9 @@

using System;
using System.Collections.Generic;
#if !NET5_0_OR_GREATER
using System.Diagnostics;
#endif
using System.Globalization;
using System.Linq;
using System.Threading;
Expand Down Expand Up @@ -150,7 +152,12 @@ public void StartSession()
if (port > 0)
{
// Fill the parameters
_consoleParameters.ParentProcessId = Process.GetCurrentProcess().Id;
#if NET5_0_OR_GREATER
_consoleParameters.ParentProcessId = Environment.ProcessId;
#else
using (var process = Process.GetCurrentProcess())
_consoleParameters.ParentProcessId = process.Id;
#endif
_consoleParameters.PortNumber = port;

// Start vstest.console.exe process
Expand Down Expand Up @@ -576,7 +583,12 @@ public async Task StartSessionAsync()
if (port > 0)
{
// Fill the parameters
_consoleParameters.ParentProcessId = Process.GetCurrentProcess().Id;
#if NET5_0_OR_GREATER
_consoleParameters.ParentProcessId = Environment.ProcessId;
#else
using (var process = Process.GetCurrentProcess())
_consoleParameters.ParentProcessId = process.Id;
#endif
_consoleParameters.PortNumber = port;

// Start vstest.console.exe process
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10 changes: 9 additions & 1 deletion test/Microsoft.TestPlatform.CrossPlatEngine.UnitTests/Client/ProxyOperationManagerTests.cs
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Expand Up @@ -109,12 +109,20 @@ public void SetupChannelShouldAddRunnerProcessIdForTestHost()

_testOperationManager.SetupChannel(Enumerable.Empty<string>(), DefaultRunSettings);

#if NET5_0_OR_GREATER
var pid = Environment.ProcessId;
#else
int pid;
using (var p = Process.GetCurrentProcess())
pid = p.Id;
#endif

_mockTestHostManager.Verify(
th =>
th.GetTestHostProcessStartInfo(
It.IsAny<IEnumerable<string>>(),
It.IsAny<Dictionary<string, string>>(),
It.Is<TestRunnerConnectionInfo>(t => t.RunnerProcessId.Equals(Process.GetCurrentProcess().Id))));
It.Is<TestRunnerConnectionInfo>(t => t.RunnerProcessId.Equals(pid))));
}

[TestMethod]
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25 changes: 22 additions & 3 deletions .../Microsoft.TestPlatform.TestHostProvider.UnitTests/Hosting/DefaultTestHostManagerTests.cs
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Expand Up @@ -341,7 +341,14 @@ public void LaunchTestHostShouldReturnTestHostProcessId()

Assert.IsTrue(processId.Result);

Assert.AreEqual(Process.GetCurrentProcess().Id, _testHostId);
#if NET5_0_OR_GREATER
var pid = Environment.ProcessId;
#else
int pid;
using (var p = Process.GetCurrentProcess())
pid = p.Id;
#endif
Assert.AreEqual(pid, _testHostId);
}

[TestMethod]
Expand Down Expand Up @@ -471,7 +478,13 @@ public async Task ProcessExitedButNoErrorMessageIfNoDataWritten(int exitCode)
[TestMethod]
public async Task CleanTestHostAsyncShouldKillTestHostProcess()
{
var pid = Process.GetCurrentProcess().Id;
#if NET5_0_OR_GREATER
var pid = Environment.ProcessId;
#else
int pid;
using (var p = Process.GetCurrentProcess())
pid = p.Id;
#endif
bool isVerified = false;
_mockProcessHelper.Setup(ph => ph.TerminateProcess(It.IsAny<Process>()))
.Callback<object>(p => isVerified = ((Process)p).Id == pid);
Expand All @@ -486,7 +499,13 @@ public async Task CleanTestHostAsyncShouldKillTestHostProcess()
[TestMethod]
public async Task CleanTestHostAsyncShouldNotThrowIfTestHostIsNotStarted()
{
var pid = Process.GetCurrentProcess().Id;
#if NET5_0_OR_GREATER
var pid = Environment.ProcessId;
#else
int pid;
using (var p = Process.GetCurrentProcess())
pid = p.Id;
#endif
bool isVerified = false;
_mockProcessHelper.Setup(ph => ph.TerminateProcess(It.IsAny<Process>())).Callback<object>(p => isVerified = ((Process)p).Id == pid).Throws<Exception>();

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52 changes: 45 additions & 7 deletions test/Microsoft.TestPlatform.TestHostProvider.UnitTests/Hosting/DotnetTestHostManagerTests.cs
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Expand Up @@ -90,13 +90,21 @@ public DotnetTestHostManagerTests()
_mockFileHelper.Setup(ph => ph.Exists(_defaultTestHostPath)).Returns(true);
_mockFileHelper.Setup(ph => ph.Exists(DefaultDotnetPath)).Returns(true);

#if NET5_0_OR_GREATER
var pid = Environment.ProcessId;
#else
int pid;
using (var p = Process.GetCurrentProcess())
pid = p.Id;
#endif

_mockTestHostLauncher
.Setup(th => th.LaunchTestHost(It.IsAny<TestProcessStartInfo>(), It.IsAny<CancellationToken>()))
.Returns(Process.GetCurrentProcess().Id);
.Returns(pid);

_mockTestHostLauncher
.Setup(th => th.LaunchTestHost(It.IsAny<TestProcessStartInfo>()))
.Returns(Process.GetCurrentProcess().Id);
.Returns(pid);

_defaultTestProcessStartInfo = _dotnetHostManager.GetTestHostProcessStartInfo(new[] { defaultSourcePath }, null, _defaultConnectionInfo);
}
Expand Down Expand Up @@ -430,7 +438,13 @@ public void GetTestHostProcessStartInfoShouldUseTestHostX86ExeFromNugetIfNotFoun
[TestMethod]
public void LaunchTestHostShouldLaunchProcessWithNullEnvironmentVariablesOrArgs()
{
var expectedProcessId = Process.GetCurrentProcess().Id;
#if NET5_0_OR_GREATER
var expectedProcessId = Environment.ProcessId;
#else
int expectedProcessId;
using (var p = Process.GetCurrentProcess())
expectedProcessId = p.Id;
#endif
_mockTestHostLauncher.Setup(thl => thl.LaunchTestHost(It.IsAny<TestProcessStartInfo>(), It.IsAny<CancellationToken>())).Returns(expectedProcessId);
_mockFileHelper.Setup(ph => ph.Exists("testhost.dll")).Returns(true);
var startInfo = GetDefaultStartInfo();
Expand All @@ -448,7 +462,13 @@ public void LaunchTestHostShouldLaunchProcessWithNullEnvironmentVariablesOrArgs(
[TestMethod]
public void LaunchTestHostAsyncShouldNotStartHostProcessIfCancellationTokenIsSet()
{
var expectedProcessId = Process.GetCurrentProcess().Id;
#if NET5_0_OR_GREATER
var expectedProcessId = Environment.ProcessId;
#else
int expectedProcessId;
using (var p = Process.GetCurrentProcess())
expectedProcessId = p.Id;
#endif
_mockTestHostLauncher.Setup(thl => thl.LaunchTestHost(It.IsAny<TestProcessStartInfo>())).Returns(expectedProcessId);
_mockFileHelper.Setup(ph => ph.Exists("testhost.dll")).Returns(true);
var startInfo = GetDefaultStartInfo();
Expand Down Expand Up @@ -577,7 +597,13 @@ public async Task LaunchTestHostShouldLaunchProcessWithConnectionInfo()
[TestMethod]
public void LaunchTestHostShouldSetExitCallBackInCaseCustomHost()
{
var expectedProcessId = Process.GetCurrentProcess().Id;
#if NET5_0_OR_GREATER
var expectedProcessId = Environment.ProcessId;
#else
int expectedProcessId;
using (var p = Process.GetCurrentProcess())
expectedProcessId = p.Id;
#endif
_mockTestHostLauncher.Setup(thl => thl.LaunchTestHost(It.IsAny<TestProcessStartInfo>(), It.IsAny<CancellationToken>())).Returns(expectedProcessId);
_mockFileHelper.Setup(ph => ph.Exists("testhost.dll")).Returns(true);

Expand Down Expand Up @@ -959,7 +985,13 @@ public async Task DotNetCoreProcessExitedButNoErrorMessageIfNoDataWritten(int ex
[TestMethod]
public async Task CleanTestHostAsyncShouldKillTestHostProcess()
{
var pid = Process.GetCurrentProcess().Id;
#if NET5_0_OR_GREATER
var pid = Environment.ProcessId;
#else
int pid;
using (var p = Process.GetCurrentProcess())
pid = p.Id;
#endif
bool isVerified = false;
_mockProcessHelper.Setup(ph => ph.TerminateProcess(It.IsAny<Process>()))
.Callback<object>(p => isVerified = ((Process)p).Id == pid);
Expand All @@ -975,7 +1007,13 @@ public async Task CleanTestHostAsyncShouldKillTestHostProcess()
[TestMethod]
public async Task CleanTestHostAsyncShouldNotThrowIfTestHostIsNotStarted()
{
var pid = Process.GetCurrentProcess().Id;
#if NET5_0_OR_GREATER
var pid = Environment.ProcessId;
#else
int pid;
using (var p = Process.GetCurrentProcess())
pid = p.Id;
#endif
bool isVerified = false;
_mockProcessHelper.Setup(ph => ph.TerminateProcess(It.IsAny<Process>())).Callback<object>(p => isVerified = ((Process)p).Id == pid).Throws<Exception>();

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11 changes: 10 additions & 1 deletion test/TranslationLayer.UnitTests/VsTestConsoleWrapperAsyncTests.cs
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Expand Up @@ -4,6 +4,9 @@
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
#if !NET5_0_OR_GREATER
using System.Diagnostics;
#endif
using System.Threading;
using System.Threading.Tasks;

Expand Down Expand Up @@ -57,7 +60,13 @@ public VsTestConsoleWrapperAsyncTests()
public async Task StartSessionAsyncShouldStartVsTestConsoleWithCorrectArguments()
{
var inputPort = 123;
int expectedParentProcessId = System.Diagnostics.Process.GetCurrentProcess().Id;
#if NET5_0_OR_GREATER
var expectedParentProcessId = Environment.ProcessId;
#else
int expectedParentProcessId;
using (var p = Process.GetCurrentProcess())
expectedParentProcessId = p.Id;
#endif
_mockRequestSender.Setup(rs => rs.InitializeCommunicationAsync(It.IsAny<int>())).Returns(Task.FromResult(inputPort));

await _consoleWrapper.StartSessionAsync();
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8 changes: 7 additions & 1 deletion test/TranslationLayer.UnitTests/VsTestConsoleWrapperTests.cs
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Expand Up @@ -58,7 +58,13 @@ public VsTestConsoleWrapperTests()
public void StartSessionShouldStartVsTestConsoleWithCorrectArguments()
{
var inputPort = 123;
int expectedParentProcessId = Process.GetCurrentProcess().Id;
#if NET5_0_OR_GREATER
var expectedParentProcessId = Environment.ProcessId;
#else
int expectedParentProcessId;
using (var p = Process.GetCurrentProcess())
expectedParentProcessId = p.Id;
#endif
_mockRequestSender.Setup(rs => rs.InitializeCommunication()).Returns(inputPort);

_consoleWrapper.StartSession();
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14 changes: 11 additions & 3 deletions test/vstest.console.UnitTests/Processors/PortArgumentProcessorTests.cs
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Expand Up @@ -2,7 +2,9 @@
// Licensed under the MIT license. See LICENSE file in the project root for full license information.

using System;
#if !NET5_0_OR_GREATER
using System.Diagnostics;
#endif

using Microsoft.VisualStudio.TestPlatform.Client.DesignMode;
using Microsoft.VisualStudio.TestPlatform.Client.RequestHelper;
Expand Down Expand Up @@ -120,12 +122,18 @@ public void ExecutorInitializeShouldSetProcessExitCallback()
{
_executor = new PortArgumentExecutor(CommandLineOptions.Instance, _testRequestManager.Object, _mockProcessHelper.Object);
int port = 2345;
int processId = Process.GetCurrentProcess().Id;
CommandLineOptions.Instance.ParentProcessId = processId;
#if NET5_0_OR_GREATER
var pid = Environment.ProcessId;
#else
int pid;
using (var p = Process.GetCurrentProcess())
pid = p.Id;
#endif
CommandLineOptions.Instance.ParentProcessId = pid;

_executor.Initialize(port.ToString());

_mockProcessHelper.Verify(ph => ph.SetExitCallback(processId, It.IsAny<Action<object?>>()), Times.Once);
_mockProcessHelper.Verify(ph => ph.SetExitCallback(pid, It.IsAny<Action<object?>>()), Times.Once);
}

[TestMethod]
Expand Down