Introduction to Stubbing
Explore the technique of stubbing in unit testing using xUnit on .NET. Understand how to replace external dependencies with predefined stubs to isolate the code under test. Learn to create and use stubs effectively, and evaluate their advantages and trade-offs for clearer, simpler test setups.
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In unit testing, stubbing refers to a technique used to isolate the code being tested by replacing certain parts with simplified implementations, often called stubs. Stubs are essentially placeholder functions or objects that mimic the behavior of the real components, but they’re designed to return predefined values or perform predefined actions. The purpose of stubbing is to control the behavior of external dependencies or collaborators during unit testing, ensuring that the test focuses only on the specific unit of code being tested.
Stubbing and mocking are related concepts used in automated testing, and they both involve ...