If you'd like to test for equality for every object property, one at a time, in order to compare and contrast two objects and see which individual pieces are different, you can use the following function, adapted from this article on how to [compare all properties of two objects in Windows PowerShell][1]


   
    Function Compare-ObjectProperties {
        Param(
            [PSObject]$leftObj,
            [PSObject]$rightObj 
        )
    
        $leftProps = $leftObj.PSObject.Properties.Name
        $rightProps = $rightObj.PSObject.Properties.Name
        $allProps = $leftProps + $rightProps | Sort | Select -Unique
        
        $props = @()
    
        foreach ($propName in $allProps) {
            
            # test if has prop
            $leftHasProp = $propName -in $leftProps
            $rightHasProp = $propName -in $rightProps
    
            # get value from object
            $leftVal = $leftObj.$propName
            $rightVal = $rightObj.$propName
    
            # create custom output - 
            $prop = [pscustomobject] @{   
                Match = $(If ($propName -eq "SamAccountName" ) {"1st"} Else {
                            $(If ($leftHasProp -and !$rightHasProp ) {"Left"} Else {
                                $(If ($rightHasProp -and !$leftHasProp ) {"Right"} Else {
                                    $(If ($leftVal -eq $rightVal ) {"Same"} Else {"Diff"})
                                })
                              })
                         })
                PropName = $propName
                LeftVal = $leftVal
                RightVal = $rightVal
            }
    
            $props += $prop
        }
    
        # sort & format table widths
        $props | Sort-Object Match, PropName | Format-Table -Property `
                   @{ Expression={$_.Match}; Label="Match"; Width=6}, 
                   @{ Expression={$_.PropName}; Label="Property Name"; Width=25}, 
                   @{ Expression={$_.LeftVal }; Label="Left Value";    Width=40}, 
                   @{ Expression={$_.RightVal}; Label="Right Value";   Width=40}
    
    }


And then use like this:



    $adUser1 = Get-ADUser 'Grace.Hopper' -Properties *
    $adUser2 = Get-ADUser 'Katherine.Johnson' -Properties *   
    Compare-ObjectProperties $adUser1 $adUser2

**Couple Interesting Notes**:

* [How to Test if Element Has Property][2]
* [How to Get Property Value by Name][3]
* [How to Create a Custom PS Object][4]
* [How to Create a Nested Conditional / Ternary Operator][5]
* [How to Format Table with fixed Widths][6]
* Attempted to Colorize output with [VT Escape Sequences][7] or [`Write-PSObject`][8], but couldn't get it to work with fixed column widths which took priority

[1]: https://blogs.technet.microsoft.com/janesays/2017/04/25/compare-all-properties-of-two-objects-in-windows-powershell/
[2]: https://stackoverflow.com/a/48982801/1366033
[3]: https://stackoverflow.com/a/14406385/1366033
[4]: https://stackoverflow.com/a/35905423/1366033
[5]: https://stackoverflow.com/a/34311158/1366033
[6]: https://stackoverflow.com/a/52174495/1366033
[7]: https://stackoverflow.com/a/49038815/1366033 "Virtual Terminal"
[8]: https://gallery.technet.microsoft.com/scriptcenter/Format-Table-Colors-in-e0a4beac

Let's say you have two objects that are identical (meaning they have the same properties and the same values respectively). 

How do you test for equality?


**Example**

`$obj1` & `$obj2` are identical

[![enter image description here][1]][1]


Here's what I've tried:

    if($obj1 -eq $obj2)
    {
        echo 'true'
    } else {
        echo 'false'
    }
    # RETURNS "false"
    
    if(Compare-Object -ReferenceObject $obj1 -DifferenceObject $obj2)
    {
        echo 'true'
    } else {
        echo 'false'
    }
    # RETURNS "false"

**Edit**

This is **not** identical

[![enter image description here][2]][2]


  [1]: https://i.stack.imgur.com/8pPpu.png
  [2]: https://i.stack.imgur.com/QFlHc.png