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Discussion About Junit?

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What is JUnit?

JUnit is a unit testing framework for Java programming language. JUnit has been important in the development of test-driven development, and is one of a family of unit testing frameworks collectively known as xUnit, that originated with JUnit.

JUnit tutorial provides basic and advanced concepts of unit testing in java with examples. Our junit tutorial is designed for beginners and professionals.

It is an open-source testing framework for java programmers. The java programmer can create test cases and test his/her own code.

It is one of the unit testing framework. Current version is junit 4.

To perform unit testing, we need to create test cases. The unit test case is a code which ensures that the program logic works as expected.

The org.junit package contains many interfaces and classes for junit testing such as Assert, Test, Before, After etc.

Features

  • Provides annotations to identify test methods.
  • Provides assertions for testing expected results.
  • Provides test runners for running tests.
  • JUnit tests allow you to write codes faster, which increases quality.
  • JUnit is elegantly simple. It is less complex and takes less time. 

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posted Jun 27, 2017 by Manish Tiwari

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What is Mockito?

Mockito is a mocking framework, JAVA-based library that is used for effective unit testing of JAVA applications. Mockito is used to mock interfaces so that a dummy functionality can be added to a mock interface that can be used in unit testing.

Mocking is a way to test the functionality of a class in isolation. Mocking does not require a database connection or properties file read or file server read to test a functionality. Mock objects do the mocking of the real service. A mock object returns a dummy data corresponding to some dummy input passed to it.

Benefits

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  • Refactoring Safe − Renaming interface method names or reordering parameters will not break the test code as Mocks are created at runtime.
  • Return value support − Supports return values.
  • Exception support − Supports exceptions.
  • Order check support − Supports check on order of method calls.
  • Annotation support − Supports creating mocks using annotation.
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What is Jest?

Jest is an open JavaScript testing library from Facebook. Its slogan is "Delightful JavaScript Testing". While Jest can be used to test any JavaScript library, it shines when it comes to React and React Native. 

Main Benefits

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             Complete and ready to set-up JavaScript testing solution. Works out of the box for any React project.

      2) Instant Feedback 

                Fast interactive watch mode runs only test files related to changed files and is optimized to give signal quickly.

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Jest is used by Facebook to test all JavaScript code including React applications. One of Jest's philosophies is to provide an integrated "zero-configuration" experience. 

NPM and Yarn Command for Installation.

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