Testing whitespace returns true (but docs say 'false')

[DotNetSparky]

Example 8 (Test a path with whitespace as the value) says:

When a whitespace is or empty string in provided for the the -Path parameter, it returns false. The following example show whitespace and empty string.

I just tried this on my machine, and it seems to return true if you test a path that is just white-space:

Test-Path ' '
True
Test-Path ' ' -IsValid
True
Test-Path ''
Test-Path : Cannot bind argument to parameter 'Path' because it is an empty string.
At line:1 char:11
+ Test-Path ''
+           ~~
    + CategoryInfo          : InvalidData: (:) [Test-Path], ParameterBindingValidationException
    + FullyQualifiedErrorId : ParameterArgumentValidationErrorEmptyStringNotAllowed,Microsoft.PowerShell.Commands.TestPathCommand

Test-Path '' -IsValid
Test-Path : Cannot bind argument to parameter 'Path' because it is an empty string.
At line:1 char:11
+ Test-Path '' -IsValid
+           ~~
    + CategoryInfo          : InvalidData: (:) [Test-Path], ParameterBindingValidationException
    + FullyQualifiedErrorId : ParameterArgumentValidationErrorEmptyStringNotAllowed,Microsoft.PowerShell.Commands.TestPathCommand

$PSVersionTable

Name                           Value
----                           -----
PSVersion                      5.1.19018.1
PSEdition                      Desktop
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}
BuildVersion                   10.0.19018.1
CLRVersion                     4.0.30319.42000
WSManStackVersion              3.0
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1

---

Document Details

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• ID: 7cdf53fb-2b99-4d30-565a-dac575bfacc9
• Version Independent ID: 1ef1a1f1-1bb5-727e-edce-c4c15aa5a3d4
• Content: Test-Path (Microsoft.PowerShell.Management)
• Content Source: reference/5.1/Microsoft.PowerShell.Management/Test-Path.md
• Product: powershell
• Technology: powershell-cmdlets
• GitHub Login: @daxian-dbw
• Microsoft Alias: dongbow

[sdwheeler]

@DotNetSparky FYI - Test-Path ' ' return False on PowerShell 6. Will update docs accordingly.