A function that facilitates comparison of serialized objects with their deserialized or selected equivalent

Compare-ObjectEquivalence.ps1

function Compare-ObjectEquivalence {
    [CmdletBinding(DefaultParameterSetName='Deserialized')]
    param(
        [Parameter(Position=0, Mandatory=$true)]
        [ValidateNotNull()]
        [System.Object]
        $OriginalObject,

        [Parameter(Position=1, Mandatory=$true, ParameterSetName='Deserialized')]
        [ValidateNotNull()]
        [System.Object]
        $DeserializedObject,

        [Parameter(Position=1, Mandatory=$true, ParameterSetName='Selected')]
        [ValidateNotNull()]
        [System.Object]
        $SelectedObject,

        [Parameter(Position=2)]
        [ValidateNotNullOrEmpty()]
        [System.String[]]
        $Property
    )
    try {
        $comparisonParameterName = "$($PSCmdlet.ParameterSetName)Object"
        $comparisonObject = $PSCmdlet.MyInvocation.BoundParameters[$comparisonParameterName]
        $originalObjectType = $OriginalObject.GetType()
        $equivalent = $originalObjectType -eq $comparisonObject.GetType() -or
                      $comparisonObject.PSTypeNames -match "$($PSCmdlet.ParameterSetName).$($originalObjectType.FullName)"
        if ($equivalent) {
            if (-not $PSCmdlet.MyInvocation.BoundParameters.ContainsKey('Property')) {
                $Property = @($comparisonObject.PSObject.Properties | Select-Object -ExpandProperty Name)
            }
            foreach ($entry in $PSCmdlet.MyInvocation.BoundParameters['Property']) {
                if ($originalObject.$entry.GetType().IsValueType -or $originalObject.$entry -is [string]) {
                    if ($originalObject.$entry -ne $comparisonObject.$entry) {
                        $equivalent = $false
                        break
                    }
                } else {
                    $recurseParameters = @{
                        OriginalObject = $originalObject.$entry
                        "$comparisonParameterName" = $comparisonObject.$entry
                    }
                    Compare-ObjectEquivalence @recurseParameters
                }
            }
        }
        $equivalent
    } catch {
        $PSCmdlet.ThrowTerminatingError($_)
    }
}