57b3d3380b
The cleanup is coming from a code review to cleanup psl. Here we clean up the side branch of the code that will allow later to clean up a branch which uses psl. - IO.FileInfo does not make system calls in constructor. So we can create the object and then use the required attributes without direct call IO.FileInfo.GetAttributes() ( SafeGetFileAttributes() ). This allow us to exclude some p/invoke calls in our code in later cleanups. Also we get unified code for both Windows and Unix. - Remove SafeGetFileAttributes() and WinSafeGetFileAttributes(). Currently .Net Core support file attributes on all platforms in fastest way and we can remove our workaround. We get a regression in rare case (for files like pagefile.sys). Fix is ready in CoreFX, we get it in 2.1.1. I suggest ignore the regression because this is a very-very rare situation (Get-ChildItem c:\pagefile.sys -Hidden). The .Net Core team was not even able to create an artificial test for such files and uses a real pagefile.sys file for the test. Also the enumeration is still working (dir c:\ -hidden). - Re-add test which we lost in #4050. The test is pending because of the regression. |
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Pester Testing Test Guide
Also see the Writing Pester Tests document.
Running Pester Tests
First, restore the correct version of Pester using Restore-PSPester.
Then, go to the top level of the PowerShell repository and run: Start-PSPester
inside a self-hosted copy of PowerShell.
You can use Start-PSPester -Tests SomeTestSuite* to limit the tests run.
Testing new powershell processes
Any launch of a new powershell process must include -noprofile so that
modified user and system profiles do not causes tests to fail. You also must
take care to call the development copy of PowerShell, which is not the first
one on the path.
Example:
$powershell = Join-Path -Path $PsHome -ChildPath "pwsh"
& $powershell -noprofile -command "ExampleCommand" | Should Be "ExampleOutput"
Portability
Some tests simply must be tied to certain platforms. Use Pester's
-Skip directive on an It statement to do this. For instance to run
the test only on Windows:
It "Should do something on Windows" -Skip:($IsLinux -Or $IsMacOS) { ... }
Or only on Linux and OS X:
It "Should do something on Linux" -Skip:$IsWindows { ... }
Pending
When writing a test that should pass, but does not, please do not skip or delete
the test, but use It "Should Pass" -Pending to mark the test as pending, and
file an issue on GitHub.