function Test-IsChocoPackageInstalled {
<#
.SYNOPSIS
    This function checks to see if a chocolatey package with a given id has been installed.

.PARAMETER PackageName
    [string] The name/id of a chocolatey package
#>
    [CmdletBinding()]
    param(
        [Parameter(Mandatory = $true)]
        [string]$PackageName
    )

    $chocoInstallPath = (Get-ChocolateyInstallPath)
    $packagePath = (Join-Path (Join-Path $chocoInstallPath "lib") $PackageName)

    return (Test-Path $packagePath)
}