tests/Test-CmBoundariesDuplicates.ps1

function Test-CmBoundariesDuplicates {
    [CmdletBinding()]
    param (
        [parameter()][string] $TestName = "Test-CmBoundariesDuplicates",
        [parameter()][string] $TestGroup = "configuration",
        [parameter()][string] $Description = "Validate Site Boundaries are not duplicated",
        [parameter()][hashtable] $ScriptParams
    )
    try {
        [System.Collections.Generic.List[PSObject]]$tempdata = @() # for detailed test output to return if needed
        $stat  = "PASS"
        $msg   = "No issues found"
        $query = "select * from vSMS_Boundary"
        if ($ScriptParams.Credential) {
            $boundaries = @(Invoke-DbaQuery -SqlInstance $ScriptParams.SqlInstance -Database $ScriptParams.Database -Query $query -SqlCredential $ScriptParams.Credential)
        } else {
            $boundaries = @(Invoke-DbaQuery -SqlInstance $ScriptParams.SqlInstance -Database $ScriptParams.Database -Query $query)
        }
        
        $dupes = @($boundaries | Group-Object -Property BoundaryType,Value | Select-Object Count,Name)
        if (($dupes | Where-Object {$_.Count -gt 1}) -gt 0) { $stat = 'FAIL' }
    }
    catch {
        $stat = 'ERROR'
        $msg = $_.Exception.Message -join ';'
    }
    finally {
        Write-Output $([pscustomobject]@{
            TestName    = $TestName
            TestGroup   = $TestGroup
            TestData    = $tempdata
            Description = $Description
            Status      = $stat 
            Message     = $msg
            Credential  = $(if($ScriptParams.Credential){$($ScriptParams.Credential).UserName} else { $env:USERNAME })
        })
    }
}