Have you tested integrations?

Yes, I have experience testing integrations. This usually involved verifying interactions between different system components, such as between microservices or between a service and a database.

The following approaches were used for testing integrations:

• Writing integration tests that run multiple components together and check the correctness of data exchange.
• Using mocks and stubs to simulate external services when they are unavailable.
• Automating tests in CI/CD for timely detection of regressions.

For example: when integrating an authorization service with a user service, it was checked that creating a new user correctly updates access rights and synchronizes data.

Thus, integration testing helped ensure that the system works as a whole, not just individual modules separately.