Rules/Test-ForParameterSetAmbiguity.ps1
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function Test-ForParameterSetAmbiguity { param( [Parameter(ParameterSetName='TestCommandInfo',Mandatory=$true,ValueFromPipeline=$true)] [Management.Automation.CommandInfo] $CommandInfo ) process { if ($CommandInfo.ParameterSets.Count -gt 1 -and -not ($CommandInfo -as [Management.Automation.CommandMetadata]).DefaultParameterSetName) { Write-Error "$CommandInfo has more than one parameter set, but no default." } } } |