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Add -WhatIf switch to Start-Process cmdlet by sarithsutha · Pull Request #4735 · PowerShell/PowerShell · GitHub

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Add -WhatIf switch to Start-Process cmdlet #4735

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Merged
Ilya (iSazonov) merged 7 commits into from
Sep 8, 2017
Conversation 24 Commits 7 Checks 0 Files changed
Merged

Add -WhatIf switch to Start-Process cmdlet #4735

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3fa6423
Add -WhatIf switch to Start-Process cmdlet
Sep 1, 2017
326a924
Added a test to ensure that using a whatif switch prevents the action…
Sep 1, 2017
b2333fb
Incorporated code review comments
Sep 5, 2017
f73b26b
merged two tests into one as suggested
Sep 5, 2017
97d10e2
Included the error action at the end of the cmdlet
Sep 5, 2017
85a31ab
Remove extra space before `StringUtil` and new line
daxian-dbw Sep 6, 2017
ff9556c
Renamed the resource string id ProcessStartInfo to StartProcessTarget
Sep 7, 2017
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5 changes: 4 additions & 1 deletion src/Microsoft.PowerShell.Commands.Management/commands/management/Process.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -1658,7 +1658,7 @@ private string MapReturnCodeToErrorMessage(int returnCode)
/// <summary>
/// This class implements the Start-process command
/// </summary>
[Cmdlet(VerbsLifecycle.Start, "Process", DefaultParameterSetName = "Default", HelpUri = "https://go.microsoft.com/fwlink/?LinkID=135261")]
[Cmdlet(VerbsLifecycle.Start, "Process", DefaultParameterSetName = "Default", SupportsShouldProcess = true, HelpUri = "https://go.microsoft.com/fwlink/?LinkID=135261")]
[OutputType(typeof(Process))]
public sealed class StartProcessCommand : PSCmdlet, IDisposable
{
Expand Down Expand Up @@ -2051,6 +2051,9 @@ protected override void BeginProcessing()
startInfo.WindowStyle = _windowstyle;
}

string targetMessage = StringUtil.Format(ProcessResources.StartProcessTarget, startInfo.FileName, startInfo.Arguments.Trim());
if (!ShouldProcess(targetMessage)) { return; }

//Starts the Process
Process process = Start(startInfo);

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3 changes: 3 additions & 0 deletions src/Microsoft.PowerShell.Commands.Management/resources/ProcessResources.resx
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Expand Up @@ -132,6 +132,9 @@
<data name="ProcessNameForConfirmation" xml:space="preserve">
<value>{0} ({1})</value>
</data>
<data name="StartProcessTarget" xml:space="preserve">
<value>{0} {1}</value>
</data>
<data name="CouldNotEnumerateModules" xml:space="preserve">
<value>Cannot enumerate the modules of the "{0}" process.</value>
</data>
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10 changes: 10 additions & 0 deletions test/powershell/Modules/Microsoft.PowerShell.Management/Start-Process.Tests.ps1
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Expand Up @@ -104,6 +104,16 @@ Describe "Start-Process" -Tags @("Feature") {
$process.Name | Should Be "notepad"
$process | Stop-Process
}

It "Should be able to use the -WhatIf switch without performing the actual action" {
$pingOutput = Join-Path $TestDrive "pingOutput.txt"
{ Start-Process -Wait $pingCommand -ArgumentList $pingParam -RedirectStandardOutput $pingOutput -WhatIf -ErrorAction Stop } | Should Not Throw
$pingOutput | Should Not Exist
}

It "Should return null when using -WhatIf switch with -PassThru" {
Start-Process $pingCommand -ArgumentList $pingParam -PassThru -WhatIf | Should Be $null
}
}

Describe "Start-Process tests requiring admin" -Tags "Feature","RequireAdminOnWindows" {
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