Test-Path "c:\..\..\test" -IsValid

False

test-path : The path 'C:\..\..\test' referred to an item that was outside the base 'C:'.
At line:1 char:1
+ Test-Path "c:\..\..\test" -IsValid
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo          : InvalidArgument: (:) [Test-Path], PSArgumentException
+ FullyQualifiedErrorId : System.Management.Automation.PSArgumentException,Microsoft.PowerShell.Commands.TestPathCommand

True

Name                           Value
----                           -----
PSVersion                      6.2.0-preview.1
PSEdition                      Core
GitCommitId                    6.2.0-preview.1
OS                             Microsoft Windows 10.0.17134
Platform                       Win32NT
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0