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Articles tagged with #testing
Custom repositories extend the base repository class and enrich it with several additional methods. This post covers unit and integration testing. // user.repository.ts @Injectable() export class UserRepository extends Repository<UserEntity> { cons...
Integration testing means testing a component with multiple sub-components and how they interact. Some sub-components can be external services, databases, and message queues. External services run, but their business logic is mocked based on received...
Besides asserting the output of the function call, unit testing includes the usage of spies and mocking. Spies are functions that let you spy on the behavior of functions called indirectly by some other code. Spy can be created by using jest.fn(). Mo...