Currently, we use different names for the same thing across different processors. We've got a bunch of health check-style scripts that exist today, such testConnection(Adyen/Ingenico) and testApi(Braintree), and they all serve the same purpose, which is to act as health check scripts and let us know the status of a remote API and our access to it. Some of these scripts are used by our endpoint monitoring services.

Let's introduce a standard health check implementation that will improve reusability and give us more consistency across processor libraries. The first run at this is here. This will allow us to use a single command, e.g. 'php /PaymentProviders/$Processor/Maintenance/HealthCheck.php' across all processor libraries and give the endpoint monitor services a consistent entry point.