functions/Test-DbaManagementObject.ps1

function Test-DbaManagementObject {
<#
    .SYNOPSIS
        Tests to see if the SMO version specified exists on the computer.
 
    .DESCRIPTION
        The Test-DbaManagementObject returns True if the Version is on the computer, and False if it does not exist.
 
    .PARAMETER ComputerName
        The name of the target you would like to check
 
    .PARAMETER Credential
        This command uses Windows credentials. This parameter allows you to connect remotely as a different user.
 
    .PARAMETER VersionNumber
        This is the specific version number you are looking for and the return will be True.
 
    .PARAMETER EnableException
        By default, when something goes wrong we try to catch it, interpret it and give you a friendly warning message.
        This avoids overwhelming you with "sea of red" exceptions, but is inconvenient because it basically disables advanced scripting.
        Using this switch turns this "nice by default" feature off and enables you to catch exceptions with your own try/catch.
 
    .NOTES
        Tags: SMO
        Author: Ben Miller (@DBAduck), http://dbaduck.com
 
        Website: https://dbatools.io
        Copyright: (c) 2018 by dbatools, licensed under MIT
        License: MIT https://opensource.org/licenses/MIT
 
    .LINK
        https://dbatools.io/Test-DbaManagementObject
 
    .EXAMPLE
        PS C:\> Test-DbaManagementObject -VersionNumber 13
 
        Returns True if the version exists, if it does not exist it will return False
 
#>

    [CmdletBinding()]
    param (
        [parameter(ValueFromPipeline)]
        [Alias("ServerInstance", "SqlServer", "SqlInstance")]
        [DbaInstance[]]$ComputerName = $env:COMPUTERNAME,
        [PSCredential]$Credential,
        [Parameter(Mandatory)]
        [int[]]$VersionNumber,
        [Alias('Silent')]
        [switch]$EnableException
    )

    begin {
        $scriptblock = {
            foreach ($number in $args) {
                $smoList = (Get-ChildItem -Path "$($env:SystemRoot)\assembly\GAC_MSIL\Microsoft.SqlServer.Smo" -Filter "$number.*" | Sort-Object Name -Descending).Name

                if ($smoList) {
                    [pscustomobject]@{
                        ComputerName = $env:COMPUTERNAME
                        Version      = $number
                        Exists       = $true
                    }
                }
                else {
                    [pscustomobject]@{
                        ComputerName = $env:COMPUTERNAME
                        Version      = $number
                        Exists       = $false
                    }
                }
            }
        }
    }
    process {
        foreach ($computer in $ComputerName.ComputerName) {
            try {
                Invoke-Command2 -ComputerName $computer -ScriptBlock $scriptblock -Credential $Credential -ArgumentList $VersionNumber -ErrorAction Stop
            }
            catch {
                Stop-Function -Continue -Message "Failure" -ErrorRecord $_ -Target $computer -Continue
            }
        }
    }
    end {
        Test-DbaDeprecation -DeprecatedOn "1.0.0" -EnableException:$false -Alias Test-DbaSqlManagementObject
    }
}