JUnit Online Quiz

Following quiz provides Multiple Choice Questions (MCQs) related to JUnit Framework. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.

Q 1 - Which of the following is correct about a Unit Test Case?

A - A Unit Test Case is a part of code which ensures that the another part of code (method) works as expected.

B - A formal written unit test case is characterized by a known input and by an expected output, which is worked out before the test is executed.

C - The known input should test a precondition and the expected output should test a postcondition.

D - All of the above.

Answer : D

Explanation

All of the above options are correct.

Q 2 - Which of the following class contains methods to collect the results of executing a test case?

Answer : C

Explanation

TestResult class contains methods to collect the results of executing a test case.

Q 3 - Which of the following annotation causes that method to be run after each Test method?

Answer : C

Explanation

Annotating a public void method with @After causes that method to be run after each Test method.

Q 4 - Which of the following method of Assert class checks if two object references are not pointing to the same object?

A - void assert(Object expected, Object actual,boolean isSame)

B - void assertCheck(Object expected, Object actual,boolean isSame)

C - void assertNotSame(Object expected, Object actual)

D - void assertChecks(Object expected, Object actual,boolean isSame)

Answer : C

Explanation

void assertNotSame(Object expected, Object actual) checks if two object references are not pointing to the same object.

Q 5 - Which of the following method of TestCase class tears down the fixture, for example, close a network connection?

A - void tearDownTestName()

B - void tearDown()

C - void tearDownFixture()

D - void tearDownTestCase()

Answer : B

Explanation

void tearDown() method tears down the fixture.

Q 6 - Which of the following method of TestSuite class adds a test to the suite?

A - void add(Test)

B - void add()

C - void addTest(Test test)

D - void addTestCase(Test test)

Answer : C

Explanation

void addTest(Test test) method adds a test to the suite.

Q 7 - Which of the following method of TestSuite class returns a test which will fail and log a warning message?

A - static Test displayWarning(String message)

B - static Test showWarning(String message)

C - static Test getWarning(String message)

D - static Test warning(String message)

Answer : D

Explanation

int testCount() method returns a test which will fail and log a warning message.

Q 8 - @RunWith and @Suite annotation are used to run the suite test.

A - false

B - true

Answer : B

Explanation

Both @RunWith and @Suite annotation are used to run the suite test.

Q 9 - JUnit provides Assertions for testing expected results.

A - true

B - false

Answer : A

Explanation

JUnit provides Assertions for testing expected results.

Q 10 - Unit Tests are written after the code during development in order to help coders test the code.

A - true

B - false

Answer : B

Explanation

Unit Tests are to be written before the code during development in order to help coders write the best code.

junit_questions_answers.htm