JUnit 5 execute method annotated with BeforeEach

JUnit 5 execute method annotated with BeforeEach

In JUnit 5, the @BeforeEach annotation is used to indicate a method that should be executed before each test method in a test class. This method is typically used to set up the test environment or perform any necessary preparations before running each test case. Here's how you can execute a method annotated with @BeforeEach in JUnit 5:

import org.junit.jupiter.api.BeforeEach; import org.junit.jupiter.api.Test; public class MyTest { @BeforeEach void setUp() { // This method will be executed before each test method // You can perform setup tasks here System.out.println("Before each test method"); } @Test void test1() { // Test case 1 System.out.println("Test 1"); } @Test void test2() { // Test case 2 System.out.println("Test 2"); } }

In the example above:

  • The setUp method is annotated with @BeforeEach. This method will be executed before each test method (test1 and test2).

  • Inside the setUp method, you can perform any necessary setup or initialization tasks that should apply to all test methods in the test class.

  • The @Test annotation is used to mark test methods (test1 and test2). These methods represent individual test cases that will be executed.

When you run this test class, JUnit 5 will execute the setUp method before executing each test method. This allows you to have a clean and consistent test environment for each test case.

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