Failure notification setup in JUnit - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the JUnit Test annotation.

JUnit

import org.junit.[1];

public class SampleTest {
    @Test
    public void testExample() {
        // test code
    }
}

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

AAfter

BBefore

CTest

DIgnore

Attempts:

3 left

💡 Hint

Common Mistakes

Using @Before or @After instead of @Test

Forgetting to import the annotation

The @Test annotation marks a method as a test method in JUnit.

2fill in blank

medium

Complete the code to assert that two values are equal.

JUnit

import static org.junit.Assert.[1];

public class SampleTest {
    @Test
    public void testSum() {
        int result = 2 + 3;
        assertEquals(5, result);
    }
}

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

AassertTrue

BassertEquals

CassertNull

DassertNotNull

Attempts:

3 left

💡 Hint

Common Mistakes

Using assertTrue with equality instead of assertEquals

Not importing the assertion method

assertEquals checks if two values are equal in JUnit tests.

3fill in blank

hard

Fix the error in the test method to notify failure correctly.

JUnit

import static org.junit.Assert.assertEquals;

public class SampleTest {
    @Test
    public void testFailNotification() {
        int expected = 10;
        int actual = 5;
        assertEquals([1], actual);
    }
}

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

Aexpected

Bactual

C15

D0

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping expected and actual values

Using a wrong literal value

The first argument to assertEquals is the expected value, then the actual value.

4fill in blank

hard

Fill both blanks to create a test that fails with a custom message.

JUnit

import static org.junit.Assert.assertEquals;

public class SampleTest {
    @Test
    public void testFailWithMessage() {
        assertEquals([1], [2], 100);
    }
}

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

A"Failure: values differ"

B100

C50

D"Test passed"

Attempts:

3 left

💡 Hint

Common Mistakes

Putting the message in the wrong position

Using the actual value instead of expected

The first argument is the failure message, the second is the expected value.

5fill in blank

hard

Fill all three blanks to write a test that fails if a condition is false with a message.

JUnit

import static org.junit.Assert.assertTrue;

public class SampleTest {
    @Test
    public void testCondition() {
        assertTrue([1], [2] > [3]);
    }
}

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

A"Check if x is greater than y"

Bx

Cy

D"Condition met"

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping x and y in the condition

Using the wrong message or no message

The first argument is the failure message, then the condition checks if x is greater than y.