Unit Testing is a type of software testing focused on individual units or components. The goal is to verify that each part works as intended in isolation. Developers perform unit tests during the development phase.
Key Aspects:
- Isolation: Tests focus on a single component without dependencies.
- Automation: Often automated using unit test frameworks.
- Immediate Feedback: Helps identify bugs early in the development cycle.
- Code Coverage: Ensures all parts of the code are tested.
Unit Testing Follows a Structured Approach:
- Write test cases for each component.
- Execute tests and check results.
- Fix any identified issues.
- Repeat as necessary.
Effective unit testing improves software reliability and reduces long-term maintenance costs.