@BeforeAll method in JUnit - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to mark the method to run once before all tests.

JUnit

public class CalculatorTest {

    [1]
    static void setup() {
        System.out.println("Setup before all tests");
    }

    @Test
    void testAdd() {
        // test code here
    }
}

Drag options to blanks, or click blank then click option'

A@BeforeEach

B@AfterAll

C@Test

D@BeforeAll

Attempts:

3 left

💡 Hint

Common Mistakes

Using @BeforeEach instead of @BeforeAll

Not making the method static when using @BeforeAll

The @BeforeAll annotation marks a method to run once before all tests in the class.

2fill in blank

medium

Complete the code to make the @BeforeAll method valid in JUnit 5.

JUnit

public class DatabaseTest {

    @BeforeAll
    [1] void init() {
        System.out.println("Initialize DB connection");
    }

    @Test
    void testQuery() {
        // test code
    }
}

Drag options to blanks, or click blank then click option'

Avoid

Bstatic

Cpublic void

Dprivate void

Attempts:

3 left

💡 Hint

Common Mistakes

Omitting static keyword

Making method non-static without @TestInstance annotation

In JUnit 5, @BeforeAll methods must be static unless the test class is annotated with @TestInstance(Lifecycle.PER_CLASS).

3fill in blank

hard

Fix the error in the @BeforeAll method declaration.

JUnit

public class ServiceTest {

    [1] void setup() {
        System.out.println("Setup service");
    }

    @Test
    void testService() {
        // test code
    }
}

Drag options to blanks, or click blank then click option'

A@BeforeAll static

B@BeforeEach void

C@BeforeAll void

D@AfterAll static void

Attempts:

3 left

💡 Hint

Common Mistakes

Using @BeforeAll without static

Using @BeforeEach instead of @BeforeAll

The @BeforeAll method must be static and annotated properly to run once before all tests.

4fill in blank

hard

Fill both blanks to correctly declare a @BeforeAll method with public access.

JUnit

public class ApiTest {

    @BeforeAll
    [1] [2] void setupAll() {
        System.out.println("API setup");
    }

    @Test
    void testApi() {
        // test code
    }
}

Drag options to blanks, or click blank then click option'

Apublic

Bstatic

Cvoid

Dprivate

Attempts:

3 left

💡 Hint

Common Mistakes

Omitting static keyword

Using private access modifier

The method must be public and static to be a valid @BeforeAll method.

5fill in blank

hard

Fill all three blanks to create a valid @BeforeAll method that prints a message.

JUnit

public class UserTest {

    @BeforeAll
    [1] [2] void setup() {
        System.out.println([3]);
    }

    @Test
    void testUser() {
        // test code
    }
}

Drag options to blanks, or click blank then click option'

Astatic

Bvoid

C"Starting tests"

Dpublic

Attempts:

3 left

💡 Hint

Common Mistakes

Missing public or static keywords

Not using quotes around the print message

The method must be public static void and print the message string.