function Save-IISServerManagerChanges {
<#
.SYNOPSIS
    Commits changes from a Microsoft.Web.Administration.ServerManager object

.DESCRIPTION
    Commits changes from a Microsoft.Web.Administration.ServerManager object.  Used for mocking

.PARAMETER serverManager
    A Microsoft.Web.Administration.ServerManager object

.EXAMPLE
    $mgr = New-Object Microsoft.Web.Administration.ServerManager
    Save-IISServerManagerChanges $mgr

#>
    [CmdletBinding()]
    param (
        [Parameter(Mandatory = $true)]
        [object]$serverManager
    )

    ([Microsoft.Web.Administration.ServerManager]$serverManager.CommitChanges()) | Out-Null
}