@DisplayName for readable names in JUnit - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to add a readable name to the test method using @DisplayName.

JUnit

@Test
@DisplayName([1])
void testAddition() {
    assertEquals(5, 2 + 3);
}

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

A"Addition works correctly"

B'Addition works correctly'

CAddition works correctly

DAddition_works_correctly

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting to use quotes around the display name string.

Using single quotes instead of double quotes.

Passing a variable or unquoted text.

The @DisplayName annotation requires a string literal in double quotes to provide a readable name.

2fill in blank

medium

Complete the code to add a display name that describes the test purpose.

JUnit

@Test
@DisplayName([1])
void testSubtraction() {
    assertEquals(2, 5 - 3);
}

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

A"Subtracting two numbers"

B'Subtracting two numbers'

CSubtracting two numbers

Dsubtracting_two_numbers

Attempts:

3 left

💡 Hint

Common Mistakes

Using single quotes instead of double quotes.

Not using quotes at all.

Using underscores instead of spaces.

The display name must be a string literal in double quotes to be valid.

3fill in blank

hard

Fix the error in the @DisplayName annotation to make the test method name readable.

JUnit

@Test
@DisplayName([1])
void testMultiplication() {
    assertEquals(6, 2 * 3);
}

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

Amultiplication_test

BMultiplication test

C'Multiplication test'

D"Multiplication test"

Attempts:

3 left

💡 Hint

Common Mistakes

Using single quotes instead of double quotes.

Not using any quotes.

Using underscores instead of spaces.

The @DisplayName annotation requires a string literal in double quotes to be valid.

4fill in blank

hard

Fill both blanks to add a display name and a test annotation correctly.

JUnit

[1]
@DisplayName([2])
void testDivision() {
    assertEquals(2, 6 / 3);
}

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

A@Test

B"Division works correctly"

C@TestMethod

D'Division works correctly'

Attempts:

3 left

💡 Hint

Common Mistakes

Using @TestMethod instead of @Test.

Using single quotes for display name.

Omitting the @Test annotation.

Use @Test annotation and a string literal in double quotes for @DisplayName.

5fill in blank

hard

Fill all three blanks to create a test method with @Test, @DisplayName, and a proper assertion.

JUnit

[1]
@DisplayName([2])
void testModulo() {
    assertEquals([3], 10 % 3);
}

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

A@Test

B"Modulo operation test"

C1

D2

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong annotation like @TestMethod.

Using single quotes for display name.

Using wrong expected value in assertEquals.

Use @Test annotation, a string literal for display name, and the correct assertion value 1 for 10 % 3.