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function Test-WMI {
    param(
        [Parameter(Position = 0, Mandatory = $false, ValueFromPipeline = $true, ValueFromPipelineByPropertyName = $true)]
        [String]
        $Namespace = "root"
        ,
        [Parameter(Position = 1, Mandatory = $false)]
        [String]
        $Class = "__Namespace"
        ,
        [Parameter(Mandatory = $false)]
        [switch]
        $Quiet
    ) 

    begin {
        [System.Environment]::ExitCode = -1
    }

    process {
        $Properties = @{
            Namespace = $Namespace
            Class = $Class
            Result = -1
        }
        try {
            $CimInstance = (Get-CimInstance -ClassName $Class -Namespace $Namespace -ErrorAction Stop)
            $Properties.Result = 0
        }
        catch {
            $Properties.Result = $error[0].Exception.HResult
        }
        finally {
            if ($CimInstance) {
                $Properties.Result = 0
            }
            elseif (!$CimInstance -and $error[0].Exception.HResult -eq 0) {
                $Properties.Result = 0x8004100E
            }
            else {
                $Properties.Result = $error[0].Exception.HResult
            }
        }
    }

    end {
        if ($Quiet) {
            ($Properties.Result -eq 0)
        }
        else {
            $obj = New-Object -TypeName PSObject -Property $Properties
            Write-Output -InputObject $obj
        }
    }
}