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Javascript Unit Testing: Get Started Quickly and Easily

  • JavaScript unit testing is essential for ensuring the quality and consistency of your software.
  • Tests are valuable in verifying that your code functions as intended and remains stable as it evolves.
  • It is recommended to start testing early in your development process and incorporate tests for all new work.
  • Tests should be run continuously during development and also automated in a separate system to ensure readiness for production.
  • Jest is a popular tool for JavaScript testing due to its ease of use and comprehensive functionality.
  • Setting up Jest involves installing it as a dev dependency and creating tests using matchers for assertions.
  • The Arrange Act Assert method is a common structure for organizing tests logically.
  • Jest offers various matchers for different types of assertions to validate code behavior.
  • Setup methods in Jest help prepare the system for testing and reduce duplication in code.
  • Asynchronous testing in Jest is facilitated through async/await for handling processes that rely on promises.

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