function Test-IsEnvironment {
<#
.SYNOPSIS
    Check if a computer is a certain environment type

.PARAMETER ComputerName
    What computer do we check, defaults to localhost
#>
    [CmdletBinding()]
    [OutputType([System.Boolean])]
    param (
        [Parameter(Mandatory=$true)]
        [ValidateSet('Production', 'QA', 'Development', 'LoadTest', 'Build', 'Unconfigured')]
        [string]$EnvironmentType,
        [string]$ComputerName = 'localhost'
    )

    $typeMatches = switch ($EnvironmentType) {
        'Production' { return Test-IsProductionEnvironment -ComputerName $ComputerName}
        'QA' { return Test-IsQAEnvironment -ComputerName $ComputerName}
        'Development' { return Test-IsDeveloperMachine -ComputerName $ComputerName}
        'LoadTest' { return Test-IsLoadTestEnvironment -ComputerName $ComputerName}
        'Build' { return Test-IsBuildEnvironment -ComputerName $ComputerName}
        'Unconfigured' { return Test-IsUnconfiguredEnvironment -ComputerName $ComputerName}
        default { throw "what is $EnvironmentType" }
    }

    return $typeMatches
}