Unit testing is a software testing technique where individual components or modules of a software application are tested in isolation. It involves testing the smallest testable parts of an application (units) independently from other parts.
Importance:
Early Bug Detection: Identifies issues during development rather than production
Code Quality: Ensures code behaves as expected under various conditions
Refactoring Safety: Provides confidence when modifying existing code
Documentation: Tests serve as living documentation of how code should behave
Faster Development: Reduces debugging time and prevents regression bugs
Rewriting in plainer words…
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