What are the advantages and disadvantages of using stabilizers in systems?

Stubs are simplified placeholders for system components that mimic the behavior of real modules or services.

Advantages:

• Allow isolating the tested component by excluding the influence of external dependencies.
• Speed up test execution as they do not require running real services.
• Facilitate testing scenarios that are difficult to reproduce with real components.

Disadvantages:

• May not fully reflect the behavior of real components, leading to a false sense of stability.
• Require maintenance and updates when interfaces or logic of real services change.
• Excessive use can complicate the testing infrastructure and reduce coverage with integration tests.

Using stubs is justified for unit testing, but it is important to combine them with integration tests to verify component interactions in real conditions.