Software Testing

Software Testing#

Software Testing Concepts#

Unit Testing#

  • Definition: Unit testing involves testing individual components or units of code in isolation. These units could be functions, methods, or classes.

  • Purpose: To verify that each unit works as expected and meets its specific requirements.

  • Benefits:

    • Early detection of defects

    • Improved code quality

    • Increased code maintainability

    • Supports regression testing

Integration Testing#

  • Definition: Integration testing combines multiple units or components to test their interactions and communication.

  • Purpose: To verify that different parts of the software work together as expected.

  • Benefits:

    • Identifies interface-related defects

    • Ensures data integrity and flow

    • Improves system stability

Regression Testing#

  • Definition: Regression testing is the process of re-executing a subset of tests to ensure that previously developed and tested software still performs correctly after changes have been made.

  • Purpose: To prevent new code from introducing unintended side effects or breaking existing functionality.

  • Benefits:

    • Maintains software quality over time

    • Reduces the risk of introducing new defects

    • Improves confidence in software changes

In essence:

  • Unit testing focuses on the smallest parts of the code.

  • Integration testing focuses on how those parts work together.

  • Regression testing focuses on ensuring that previous functionality remains intact after changes.

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