What is Unit testing?

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What is Unit testing?

  • Unit testing is a method by which individual units of source code are tested to determine if they are fit for use. A unit is the smallest testable part of an application like functions/procedures, classes, interfaces.
  • Unit tests are typically written and run by software developers to ensure that code meets its design and behaves as intended.
  • The goal of unit testing is to isolate each part of the program and show that the individual parts are correct.
  • A unit test provides a strict, written contract that the piece of code must satisfy. As a result, it affords several benefits. Unit tests find problems early in the development cycle.


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