When using singletons for DB connections in TS, I will generally have a singleton function that returns the resource. So getDatabaseConnection will return a dat

When using singletons for DB connections in TS, I will generally have a singleton function that returns the resource. So getDatabaseConnection will return a databaseConnection. It’s pretty simple, but it has solved the testing problem for me because within that getResource function I can check if the environment being ran in is a test environment. If so, return a mocked instance. If not, return the real instance. It’s pretty rudimentary, but it’s solved our issues.