What are the advantages and disadvantages of integration testing?

Integration testing verifies the interaction between modules or system components, identifying errors at their interfaces.

Advantages:

• Allows detection of errors not visible during unit testing.
• Checks the correctness of interaction between components.
• Helps ensure that the integration of different parts of the system works as intended.

Disadvantages:

• Setting up an integration test environment for multiple components can be challenging.
• Tests may be slower and more complex to maintain than unit tests.
• Sometimes it is difficult to localize the cause of an error, as it may arise from the interaction of multiple components.