JUnit Framework

Posted By : Hany Yadav | 31-May-2020

Junit framework

JUnit is a unit testing framework for JAVA programming language. JUnit used to write and execute scripts in selenium. It completely depends on annotations and with the help of JUnit classes and methods are to be controlled. It is the platform that generates the HTML reports. JUnit framework can be easily integrated with following:-

  • Eclipse
  • Ant
  • Maven

 

Annotations:-

  • @BeforeClass
  • @Before
  • @Test
  • @After
  • @AfterClass

 

  • @BeforeClass:-

                    It is an annotation that is applicable on static function and runs once before all the test cases mentioned in the script start their execution.

  • @Before:-

                    It is a method that is a precondition for all test cases mentioned in scripts and is invoked/run for each test case.

  • @Test:-

                   It is used to control functions and is applicable to non-static and non-parameterized functions. @Test annotation is a randomized annotation so, it is not possible to set priority in @test annotation just because of randomized. Any method can be executed initially. It converts the functions into test cases, executes them, and generates the report with the function name.

  • @AfterClass:-

                   It is annotation that is applicable to static function and runs once all the test cases mentioned in the script complete their execution.

  • @After:-

                   It is a method which is a postcondition for all test cases mentioned in scripts and for each test cases it will be invoked/run.   

Example:-

import org.junit.*;

 

public class Junit {

 

    // Run once

    @BeforeClass

    public static void BeforeClass() {

        System.out.println("@BeforeClass");

    }

 

    // Run once

    @AfterClass

    public static void AfterClass() {

        System.out.println("@AfterClass");

    }

 

    // Run before TestMethod

    @Before

    public void runBeforeTestMethod() {

        System.out.println("@Before");

    }

 

    // Run after TestMethod

 

    @After

    public void After() {

        System.out.println("@After");

    }

 

    @Test

    public void test_method_1() {

        System.out.println("@Test1");

    }

 

    @Test

    public void test_method_2() {

        System.out.println("@Test2");

    }

 

}

Outout:-

 

@BeforeClass

@Before 

@Test1

@After 

@Before 

@Test2

@After

@AfterClass

 

 

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