TestDbInitializer

TestDbInitializer

TestDbInitializer

Defines how the e2e TestService sets up a particular DB to run a single test suite. The @vendure/testing package ships with initializers for sql.js, MySQL & Postgres.

Custom initializers can be created by implementing this interface and registering it with the registerInitializer function:

Example

export class CockroachDbInitializer implements TestDbInitializer<CockroachConnectionOptions> {
    // database-specific implementation goes here
}

registerInitializer('cockroachdb', new CockroachDbInitializer());

Signature

interface TestDbInitializer<T extends BaseConnectionOptions> {
  init(testFileName: string, connectionOptions: T): Promise<T>;
  populate(populateFn: () => Promise<void>): Promise<void>;
  destroy(): void | Promise<void>;
}

Members

init

method
type:
(testFileName: string, connectionOptions: T) => Promise<T>

Responsible for creating a database for the current test suite. Typically, this method will:

  • use the testFileName parameter to derive a database name
  • create the database
  • mutate the connetionOptions object to point to that new database

populate

method
type:
(populateFn: () => Promise<void>) => Promise<void>
Execute the populateFn to populate your database.

destroy

method
type:
() => void | Promise<void>
Clean up any resources used during the init() phase (i.e. close open DB connections)