Java Junit for unit testing

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Java Junit for unit testing

Unit testing is a software testing method where individual units or components of a software application are tested in isolation to ensure they work as intended. In Java, JUnit is a widely used framework for unit testing. Here's a brief overview of unit testing with Java and JUnit:

  1. Annotations:
    • JUnit uses annotations to identify methods that specify a test. Common annotations include @Test to denote a test method.

 

  1. Assertions:
    • JUnit provides various assertion methods to check expected results. Common assertions include assertEquals, assertTrue, assertFalse, etc.

 

  1. Test Suites:
    • Test suites allow you to group related tests. JUnit provides @RunWith and @Suite annotations to create test suites.

 

 

  1. Setup and Teardown:
    • JUnit provides @Before and @After annotations to mark methods that should be run before and after each test method, ensuring a clean state.

 

  1. Parameterized Tests:
    • JUnit supports parameterized tests using the @RunWith(Parameterized.class) annotation.

 

JUnit facilitates the creation and execution of tests, making it an essential tool for Java developers practicing unit testing.

 

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