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What is the main purpose of unit testing in software development?

easy📝 Conceptual Q11 of 15
Testing Fundamentals - Testing Types and Levels
What is the main purpose of unit testing in software development?
ATo deploy the software to users
BTo test the entire software system at once
CTo check small parts of code work correctly
DTo design the user interface
Step-by-Step Solution
Solution:

  1. Step 1: Understand unit testing scope

    Unit testing focuses on testing small, individual parts of code, like functions or methods.

  2. Step 2: Compare with other testing types

    Testing the entire system is integration or system testing, not unit testing.

  3. Final Answer:

    To check small parts of code work correctly -> Option C

  4. Quick Check:

    Unit testing = small code parts check [OK]
Quick Trick: Unit tests check small code parts, not whole system [OK]
Common Mistakes:
  • Confusing unit testing with system testing
  • Thinking unit tests check UI or deployment
  • Believing unit tests run the full application

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