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Difference between @BeforeEach and @Before Annotations in JUnit Test Class

The @BeforeEach and @Before annotations both serve as methods to run before each test method in a JUnit test class, but there are differences in their usage:

• @BeforeEach: Introduced in JUnit 5, the @BeforeEach annotation indicates a method that runs before each test method. It is typically used for setting up or initializing test data that is required for each test case.
• @Before: In JUnit 4 and earlier versions, the @Before annotation serves the same purpose as @BeforeEach. It is used to run a method before each test method, performing setup tasks before the test execution.

When to use each annotation:

1. Use @BeforeEach in JUnit 5 for better compatibility and readability of your tests.
2. Use @Before in JUnit 4 if you are working with older codebases or projects that have not yet migrated to JUnit 5.

By understanding the differences between these annotations, you can choose the appropriate one based on the JUnit version you are using and maintain consistency in your test classes.

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The Difference between @BeforeEach and @Before Annotations in JUnit Testing

The @Before annotation in JUnit is used to signal a method that should be executed before each test method in a test class. This ensures that the setup steps are performed before every test method execution.

On the other hand, @BeforeEach is a more recent addition in JUnit 5 and serves a similar purpose to @Before in JUnit 4. It is used to mark a method that should be run before each test method in a JUnit 5 test class.

It's important to note that @BeforeEach and @Before are not interchangeable; they belong to different versions of JUnit and should be used accordingly based on the JUnit version being employed.

One should use @Before in JUnit 4 to perform setup tasks before each test method, while @BeforeEach should be used in JUnit 5 for the same purpose.

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