Explore the role of test doubles in isolating code units during testing. Learn about different types like dummies, fakes, stubs, spies, and mocks, and their practical applications in JavaScript and TypeScript.
Explore advanced mocking techniques, including partial mocks, mocking private methods, and using tools like proxyquire or rewire. Learn best practices for organizing mock code, managing test dependencies, and balancing real implementations with mocks.
Explore the practice of simulating dependencies in microservices through service virtualization. Learn how to identify key dependencies, choose the right tools, implement mock services, and integrate virtualization into testing workflows.
Explore best practices for service virtualization and mocking in microservices testing, including standardized approaches, realistic simulations, and integration into CI/CD pipelines.
Explore comprehensive strategies for unit testing event handlers in event-driven architectures, focusing on isolation, mock objects, and test automation.
Explore how to effectively mock event sources and sinks in event-driven systems using frameworks like Mockito and WireMock. Learn to create mock event producers and consumers, define mock event data, and integrate mocks into test suites for robust testing.