Stub

How it is used

Used in testing to isolate code from external systems and make results predictable. Often mentioned with fixed responses, dependencies, and unit tests.

Example sentences

1. In the unit test, we replaced the billing service with a stub that always returns the same invoice status for overdue accounts.

   Here the term means a controlled stand-in that supplies known outputs so the test can focus on our code's behavior.

2. The backend team exposed a stub for the shipping API so the mobile app could be tested before the partner system went live.

   In this sentence, it refers to a temporary substitute that imitates expected replies and removes the need for the real integration.

Common collocations

• test stub
• create a stub
• stub response

Related terms

• mockA fake version of a real object or service used in tests, so you can control its behavior and check how your code uses it. Also a verb: to mock a service.
• unit testA small automated test that checks one function or class on its own, separate from the database, the network and the rest of the system.

More terms: Testing

• test case
• edge case
• QA
• regression
• integration test
• test coverage
• end-to-end test
• flaky
• test suite
• manual testing
• automated testing
• assertion