Unit testing, integration testing, and test driven development concepts from an intro software engineering course.
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- What is unit testing?
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Testing individual components or functions in isolation to verify they work correctly.- What is integration testing?
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Testing how different components and modules work together as a group.- What is test-driven development (TDD)?
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A development approach where you write test cases before writing the implementation code.- What are the three phases of the TDD cycle?
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Red (write a failing test), Green (write code to pass the test), Refactor (improve the code).- What is a test fixture?
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The setup of initial conditions, data, and state required for a test to run.- What is code coverage?
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The percentage of source code that is executed by the test suite.- What is a mock object?
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A fake object that simulates the behavior of a real object for testing purposes.- What is a stub?
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A test double that provides hardcoded, predetermined responses to method calls.- What is a test assertion?
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A statement that checks whether the actual result matches the expected result.- What does it mean when a test fails?
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The actual output or behavior does not match the expected output defined in the assertion.- What is regression testing?
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Re-running existing tests after code changes to ensure new bugs were not introduced.- What is a boundary test?
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A test that checks the behavior of code at the limits or edges of input ranges.- What is an edge case?
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An input or condition that falls at the extreme end of the expected operating range.- What is test isolation?
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The principle that each test should be independent and not rely on or affect other tests.- Why is test isolation important?
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It ensures that failing tests clearly identify the actual problem without side effects from other tests.
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