tests/Test-SqlDbDedicated.ps1

function Test-SqlDbDedicated {
    [CmdletBinding()]
    param (
        [parameter()][string] $TestName = "Test-SqlDbDedicated",
        [parameter()][string] $TestGroup = "database",
        [parameter()][string] $Description = "Verify SQL Instance is dedicated to ConfigMgr site",
        [parameter()][hashtable] $ScriptParams
    )
    try {
        $stat = 'PASS'
        $msg  = "No issues found"
        $supported  = Get-CmHealthDefaultValue -KeySet "sqlserver:LicensedDatabases" -DataSet $CmHealthConfig
        Write-Verbose "Supported Names: $($supported -join ',')"
        [System.Collections.Generic.List[PSObject]]$tempdata = @() # for detailed test output to return if needed
        if ($ScriptParams.Credential) {
            $dbnames = Get-DbaDatabase -SqlInstance $ScriptParams.SqlInstance -SqlCredential $ScriptParams.Credential | Select-Object -ExpandProperty Name
        } else { 
            $dbnames = Get-DbaDatabase -SqlInstance $ScriptParams.SqlInstance | Select-Object -ExpandProperty Name
        }
        $dblist1 = @()
        $dblist2 = @()
        $dbnames | ForEach-Object {
            Write-Verbose "database name: $_"
            if (-not (($_ -match 'CM_') -or ($_ -in $supported))) {
                $dblist1 += $_
            } else {
                $dblist2 += $_
            }
        }
        if ($dblist1.Count -gt 0) {
            Write-Verbose "unsupported names were found"
            $stat = "WARNING"
            $msg  = "Databases found which are not supported by MEMCM SQL licensing"
            $tempdata.Add("$($dblist1 -join ',')")
        } else {
            Write-Verbose "no unsupported names were found"
            if ($dblist2.Count -gt 0) {
                $tempdata.Add("$($dblist2 -join ',')")
            } else {
                $tempdata.Add("$($supported -join ',')")
            }
            $msg = "All databases are supported for MEMCM SQL licensing"
        }
    }
    catch {
        $msg = $_.Exception.Message -join ';'
        $stat = "ERROR"
    }
    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 })
        })
    }
}