Private/ParameterValidation/Test-StatusCakeHelperTimeZone.ps1
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<# .SYNOPSIS Tests to confirm that a supplied TimeZone is valid .DESCRIPTION Tests to confirm that a supplied TimeZone is valid .PARAMETER TimeZone TimeZone string to test is valid .PARAMETER TimeZoneFile Path to JSON file containing valid timezones .EXAMPLE C:\PS>"UTC" | Test-StatusCakeHelperTimeZone Test if UTC is a valid time zone .OUTPUTS Returns true if Time Zone is valid #> function Test-StatusCakeHelperTimeZone { [CmdletBinding(PositionalBinding=$false)] [OutputType([System.Boolean])] Param( [Parameter(Mandatory=$True, ValueFromPipeline=$True)] [string] $TimeZone, [string] $TimeZoneFile="$PSScriptRoot\Files\TimeZones.json" ) $timeZoneList = Get-Content $TimeZoneFile | ConvertFrom-Json if($timeZoneList -contains $TimeZone) { Return $true } Return $false } |