Which statements is true?

Question

Options

• AMethods annotated with @AfterEach will run only once before any tests in a class are executed.
• B@BeforeAll annotation can only be used on non-static methods.
• CMethods annotated with @BeforeAll will run only once before any tests in a class are executed.
• D@AfterEach annotation must be used on a cleanup method when @BeforeEach is used.

• A
  3% (2)
• B
  2% (1)
• C
  94% (59)
• D
  2% (1)

Explanation

@BeforeAll marks a method that runs exactly once before any test in the class executes, making it ideal for expensive setup like database connections or file loading - that's what makes C correct.

Why the distractors are wrong:

• A is a swap trick: @AfterEach runs after each individual test, not once before all tests - that describes @BeforeAll's behavior with the wrong annotation.
• B is the opposite of reality: @BeforeAll methods must be static (unless the test class uses @TestInstance(Lifecycle.PER_CLASS)), not non-static.
• D is a made-up rule: @BeforeEach and @AfterEach are independent - you can use either without the other depending on your needs.

Memory tip: Think in pairs and timing - Before/After = when it runs, All/Each = how many times. @BeforeAll = "before ALL tests, just once"; @AfterEach = "after EACH test, every time."

No community discussion yet for this question.