tests/Test-SqlDatabaseNameDefault.ps1

function Test-SqlDatabaseNameDefault {
    [CmdletBinding()]
    param (
        [parameter()][string] $TestName = "Check if SQL DB name uses default format",
        [parameter()][string] $TestGroup = "configuration",
        [parameter()][string] $Description = "Check if site database name is using the CM_XXX format",
        [parameter()][hashtable] $ScriptParams
    )
    try {
        $startTime = (Get-Date)
        #[int]$Setting = Get-CmHealthDefaultValue -KeySet "keygroup:keyname" -DataSet $CmHealthConfig
        [System.Collections.Generic.List[PSObject]]$tempdata = @() # for detailed test output to return if needed
        $stat   = "PASS" # do not change this
        $except = "WARNING" # or "FAIL"
        $msg    = "No issues found" # do not change this either
        $regkey = "HKLM:\SOFTWARE\Microsoft\SMS\SQL Server"
        $vname  = "Database Name"

        $reghost = $ScriptParams.ComputerName
        $dbname  = ""
        if ($reghost -eq $env:COMPUTERNAME) {
            Write-Log -Message "reading local registry: $regkey"
            $dbname = Get-RegistryValueData -RegistryHive LocalMachine -RegistryKeyPath $regkey -ValueName $vname
        } else {
            Write-Log -Message "reading remote registry: $regkey"
            $dbname = Get-RegistryValueData -ComputerName $reghost -RegistryHive LocalMachine -RegistryKeyPath $regkey -ValueName $vname
        }

        if (![string]::IsNullOrEmpty($dbname)) {
            if (-not($dbname.StartsWith('CM_'))) {
                $stat = $except
                $msg = "$dbname is not using the default naming format"
                Write-Log -Message $msg -Category $except
            } else {
                $msg = "$dbname is using the default naming format"
                Write-Log -Message $msg
            }
        } else {
            Write-Log -Message "Unable to read registry data" -Category Error
        }

        $tempdata.Add(
            [pscustomobject]@{
                Status = $stat
                ComputerName = $reghost
                DatabaseName = $dbname
                Message = $msg
            }
        )
    }
    catch {
        $stat = 'ERROR'
        $msg = $_.Exception.Message -join ';'
    }
    finally {
        Write-Output $([pscustomobject]@{
            TestName    = $TestName
            TestGroup   = $TestGroup
            TestData    = $tempdata
            Description = $Description
            Status      = $stat
            Message     = $msg
            RunTime     = $(Get-RunTime -BaseTime $startTime)
            Credential  = $(if($ScriptParams.Credential){$($ScriptParams.Credential).UserName} else { $env:USERNAME })
        })
    }
}