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QUnit MCQs and Answers With Explanation – QUnit is a popular and user-friendly JavaScript unit testing framework. It allows developers to test their JavaScript code for expected behavior and quickly identify any errors. The framework provides various methods and functions to create and execute test cases for both synchronous and asynchronous code. We assure the aspirants that these QUnit MCQ Questions and Answers/ QUnit Quiz will surely help them in enhancing their knowledge and will be able to know new details about QUnit.
QUnit Mulitple Choice Questions
Candidates who are looking for a website to get the QUnit Mulitple Choice Questions to prepare for the interview or certification exam can take reference from this Qunit Online Test article. These QUnit MCQs cover some essential concepts and features of QUnit, including its syntax, assertion methods, asynchronous testing, setup, teardown functions, and skipping tests. Let’s test your knowledge of QUnit!
QUnit MCQ Questions and Answers
| Name | QUnit |
| Exam Type | MCQ (Multiple Choice Questions) |
| Category | Technical Quiz |
| Mode of Quiz | Online |
Top 45 QUnit MCQs | Practice Online Quiz
1. What is QUnit?
A. A JavaScript testing framework
B. A JavaScript animation library
C. A JavaScript data visualization library
D. A JavaScript data binding library
Answer: A
Explanation: QUnit is a powerful and easy-to-use JavaScript unit testing framework used for testing JavaScript code.
2. What is the syntax for the QUnit test function?
A. QUnit.test(“test name”, function(assert){ … });
B. test.QUnit(“test name”, function(assert){ … });
C. QUnit(“test name”, function(assert){ … });
D. QUnitTest(“test name”, function(assert){ … });
Answer: A
Explanation: The syntax for the QUnit test function is QUnit.test(“test name”, function(assert){ … });
3. How do you check if a test passes in QUnit?
A. Using the assert.ok() method
B. Using the assert.fail() method
C. Using the assert.equal() method
D. Using the assert.strictEqual() method
Answer: A
Explanation: In QUnit, you can check if a test passes by using the assert.ok() method.
4. What is the purpose of the assert parameter in the QUnit test function?
A. To provide a message to the user when a test fails
B. To provide a description of the test
C. To check if a test passes or fails
D. To provide additional functionality to the test
Answer: C
Explanation: The assert parameter in the QUnit test function is used to check if a test passes or fails.
5. What is the purpose of the done() function in QUnit?
A. To mark the end of a test
B. To mark the beginning of a test
C. To provide a message to the user when a test fails
D. To provide a description of the test
Answer: A
Explanation: The done() function in QUnit is used to mark the end of a test.
6. How do you check if two values are equal in QUnit?
A. Using the assert.ok() method
B. Using the assert.equal() method
C. Using the assert.strictEqual() method
D. Using the assert.notEqual() method
Answer: B
Explanation: In QUnit, you can check if two values are equal by using the assert.equal() method.
7. What is the purpose of the asyncTest() function in QUnit?
A. To test asynchronous code
B. To test synchronous code
C. To provide a message to the user when a test fails
D. To provide a description of the test
Answer: A
Explanation: The asyncTest() function in QUnit is used to test asynchronous code.
8. How do you check if a test fails in QUnit?
A. By intentionally passing invalid arguments to the assert methods
B. By calling the assert.fail() method
C. By calling the assert.error() method
D. By calling the assert.false() method
Answer: A
Explanation: In QUnit, you can check if a test fails by intentionally passing invalid arguments to the assert methods.
9. What is the purpose of the expect() function in QUnit?
A. To set the number of assertions to be run in a test
B. To set the number of tests to be run in a suite
C. To provide a message to the user when a test fails
D. To provide a description of the test
Answer: A
Explanation: The expect() function in QUnit is used to set the number of assertions to be run in a test.
10. How do you test for exceptions in QUnit?
A. By using the assert.exception() method
B. By using the assert.throws() method
C. By using the assert.fail() method
D. By using the assert.false() method
Answer: B
Explanation: In QUnit, you can test for exceptions by using the assert.throws() method.
11. What is the purpose of the setup() function in QUnit?
A. To run code before each test in a module
B. To run code after each test in a module
C. To run code before each test suite
D. To run code after each test suite
Answer: A
Explanation: The setup() function in QUnit is used to run code before each test in a module.
12. What is the purpose of the teardown() function in QUnit?
A. To run code after each test in a module
B. To run code before each test in a module
C. To run code after each test suite
D. To run code before each test suite
Answer: A
Explanation: The teardown() function in QUnit is used to run code after each test in a module.
13. How do you skip a test in QUnit?
A. By calling the assert.skip() method
B. By calling the QUnit.skip() method
C. By calling the test.skip() method
D. By calling the assert.fail() method with a skip message
Answer: C
Explanation: In QUnit, you can skip a test by calling the test.skip() method.
14. What is the purpose of the QUnit.done() function?
A. To mark the end of a test suite
B. To mark the beginning of a test suite
C. To provide a message to the user when a test fails
D. To provide a description of the test
Answer: A
Explanation: The QUnit.done() function in QUnit is used to mark the end of a test suite.
15. How do you run a single test in QUnit?
A. By clicking on the test name in the QUnit UI
B. By specifying the test name as a parameter to the QUnit test() function
C. By specifying the test name as a parameter to the QUnit.run() function
D. By using the QUnit.only() function
Answer: B
Explanation: In QUnit, you can run a single test by specifying the test name as a parameter to the QUnit test() function.
16. What is the purpose of the QUnit.config() function?
A. To configure the QUnit test runner
B. To configure the QUnit UI
C. To provide a message to the user when a test fails
D. To provide a description of the test
Answer: A
Explanation: The QUnit.config() function in QUnit is used to configure the QUnit test runner.
17. How do you test for deep equality in QUnit?
A. Using the assert.ok() method
B. Using the assert.deepEqual() method
C. Using the assert.strictEqual() method
D. Using the assert.notEqual() method
Answer: B
Explanation: In QUnit, you can test for deep equality by using the assert.deepEqual() method.
18. How do you test for strict equality in QUnit?
A. Using the assert.ok() method
B. Using the assert.deepEqual() method
C. Using the assert.strictEqual() method
D. Using the assert.notEqual() method
Answer: C
Explanation: In QUnit, you can test for strict equality by using the assert.strictEqual() method.
19. What is the purpose of the QUnit.assert namespace?
A. To define custom assertion methods
B. To define custom setup and teardown methods
C. To define custom test modules
D. To define custom event handlers
Answer: A
Explanation: The QUnit.assert namespace is used to define custom assertion methods in QUnit. Custom assertion methods can be used to extend the functionality of QUnit’s built-in assertions, or to create entirely new assertions that are specific to your testing needs.
20. How do you test for the existence of a property in an object in QUnit?
A. Using the assert.exist() method
B. Using the assert.notExist() method
C. Using the assert.property() method
D. Using the assert.notProperty() method
Answer: C
Explanation: In QUnit, you can test for the existence of a property in an object by using the assert.property() method.
21. How do you test for the non-existence of a property in an object in QUnit?
A. Using the assert.exist() method
B. Using the assert.notExist() method
C. Using the assert.property() method
D. Using the assert.notProperty() method
Answer: D
Explanation: In QUnit, you can test for the non-existence of a property in an object by using the assert.notProperty() method.
22. How do you test for the length of an array in QUnit?
A. Using the assert.length() method
B. Using the assert.notLength() method
C. Using the assert.array() method
D. Using the assert.notArray() method
Answer: A
Explanation: In QUnit, you can test for the length of an array by using the assert.length() method.
23. How do you test for the type of a value in QUnit?
A. Using the assert.typeOf() method
B. Using the assert.notTypeOf() method
C. Using the assert.instanceOf() method
D. Using the assert.notInstanceOf() method
Answer: A
Explanation: In QUnit, you can test for the type of a value by using the assert.typeOf() method.
24. How do you test for the non-type of a value in QUnit?
A. Using the assert.typeOf() method
B. Using the assert.notTypeOf() method
C. Using the assert.instanceOf() method
D. Using the assert.notInstanceOf() method
Answer: B
Explanation: In QUnit, you can test for the non-type of a value by using the assert.notTypeOf() method.
25. How do you test for the instance of an object in QUnit?
A. Using the assert.typeOf() method
B. Using the assert.notTypeOf() method
C. Using the assert.instanceOf() method
D. Using the assert.notInstanceOf() method
Answer: C
Explanation: In QUnit, you can test for the instance of an object by using the assert.instanceOf() method.
26. How do you test for the non-instance of an object in QUnit?
A. Using the assert.typeOf() method
B. Using the assert.notTypeOf() method
C. Using the assert.instanceOf() method
D. Using the assert.notInstanceOf() method
Answer: D
Explanation: In QUnit, you can test for the non-instance of an object by using the assert.notInstanceOf() method.
27. How do you test for the presence of a substring in a string in QUnit?
A. Using the assert.include() method
B. Using the assert.notInclude() method
C. Using the assert.string() method
D. Using the assert.notString() method
Answer: A
Explanation: In QUnit, you can test for the presence of a substring in a string by using the assert.include() method.
28. How do you test for the non-presence of a substring in a string in QUnit?
A. By using the assert.noSubstring() method
B. By using the assert.notSubstring() method
C. By using the assert.stringNotInclude() method
D. By using the assert.stringExclude() method
Answer: B
Explanation: In QUnit, you can test for the non-presence of a substring in a string by using the assert.notSubstring() method. This method takes two parameters – the substring you want to test for and the string to test against. If the substring is not present in the string, the assertion passes. If the substring is present in the string, the assertion fails.
29. How do you test if a function throws an exception in QUnit?
A. Using the assert.exception() method
B. Using the assert.notException() method
C. Using the assert.throw() method
D. Using the assert.notThrow() method
Answer: A
Explanation: In QUnit, you can test if a function throws an exception by using the assert.exception() method.
30. How do you test if a function does not throw an exception in QUnit?
A. Using the assert.exception() method
B. Using the assert.notException() method
C. Using the assert.throw() method
D. Using the assert.notThrow() method
Answer: B
Explanation: In QUnit, you can test if a function does not throw an exception by using the assert.notException() method.
31. How do you test if a function returns a value in QUnit?
A. Using the assert.returns() method
B. Using the assert.notReturns() method
C. Using the assert.return() method
D. Using the assert.notReturn() method
Answer: A
Explanation: In QUnit, you can test if a function returns a value by using the assert.returns() method.
32. How do you test if a function does not return a value in QUnit?
A. Using the assert.returns() method
B. Using the assert.notReturns() method
C. Using the assert.return() method
D. Using the assert.notReturn() method
Answer: B
Explanation: In QUnit, you can test if a function does not return a value by using the assert.notReturns() method.
33. How do you test for the truthiness of a value in QUnit?
A. Using the assert.ok() method
B. Using the assert.notOk() method
C. Using the assert.truthy() method
D. Using the assert.falsy() method
Answer: A
Explanation: In QUnit, you can test for the truthiness of a value by using the assert.ok() method.
34. How do you test for the falsiness of a value in QUnit?
A. Using the assert.ok() method
B. Using the assert.notOk() method
C. Using the assert.truthy() method
D. Using the assert.falsy() method
Answer: B
Explanation: In QUnit, you can test for the falsiness of a value by using the assert.notOk() method.
35. What is the purpose of the QUnit.assert argument in a test function?
A. It is used to access the QUnit API
B. It is used to provide additional test data
C. It is used to specify the test name
D. It is used to specify the test module
Answer: A
Explanation: The QUnit.assert argument in a test function is used to access the QUnit API and perform assertions.
36. How do you run a specific test in QUnit?
A. By specifying the test name in the QUnit.run() method
B. By specifying the test module in the QUnit.run() method
C. By specifying the test ID in the QUnit.run() method
D. By specifying the test function in the QUnit.run() method
Answer: A
Explanation: In QUnit, you can run a specific test by specifying the test name in the QUnit
.run() method.
37. How do you set up a test fixture in QUnit?
A. By using the QUnit.config() method
B. By using the QUnit.fixture() method
C. By using the QUnit.setup() method
D. By using the QUnit.testStart() method
Answer: C
Explanation: In QUnit, you can set up a test fixture by using the QUnit.setup() method.
38. How do you tear down a test fixture in QUnit?
A. By using the QUnit.config() method
B. By using the QUnit.fixture() method
C. By using the QUnit.teardown() method
D. By using the QUnit.testDone() method
Answer: C
Explanation: In QUnit, you can tear down a test fixture by using the QUnit.teardown() method.
39. How do you test asynchronous code in QUnit?
A. By using the QUnit.asyncTest() method
B. By using the QUnit.test() method
C. By using the QUnit.done() method
D. By using the QUnit.wait() method
Answer: A
Explanation: In QUnit, you can test asynchronous code by using the QUnit.asyncTest() method.
40. How do you complete an asynchronous test in QUnit?
A. By calling the QUnit.complete() method
B. By calling the QUnit.asyncComplete() method
C. By calling the QUnit.finish() method
D. By calling the QUnit.done() method
Answer: B
Explanation: In QUnit, you can complete an asynchronous test by calling the QUnit.asyncComplete() method.
41. How do you specify a timeout for an asynchronous test in QUnit?
A. By calling the QUnit.timeout() method
B. By calling the QUnit.setTimeout() method
C. By passing a timeout argument to the QUnit.asyncTest() method
D. By calling the QUnit.wait() method
Answer: C
Explanation: In QUnit, you can specify a timeout for an asynchronous test by passing a timeout argument to the QUnit.asyncTest() method.
42. How do you test if an AJAX request was made in QUnit?
A. By using the assert.ajax() method
B. By using the assert.notAjax() method
C. By using the assert.request() method
D. By using the assert.notRequest() method
Answer: A
Explanation: In QUnit, you can test if an AJAX request was made by using the assert.ajax() method.
43. How do you test if an AJAX request was not made in QUnit?
A. By using the assert.ajax() method
B. By using the assert.notAjax() method
C. By using the assert.request() method
D. By using the assert.notRequest() method
Answer: B
Explanation: In QUnit, you can test if an AJAX request was not made by using the assert.notAjax() method.
44. How do you test if an AJAX request returned a certain status code in QUnit?
A. By using the assert.ajaxStatusCode() method
B. By using the assert.notAjaxStatusCode() method
C. By using the assert.statusCode() method
D. By using the assert.notStatusCode() method
Answer: A
Explanation: In QUnit, you can test if an AJAX request returned a certain status code by using the assert.ajaxStatusCode() method.
45. How do you test if an AJAX request did not return a certain status code in QUnit?
A. By using the assert.ajaxStatusCode() method
B. By using the assert.notAjaxStatusCode() method
C. By using the assert.statusCode() method
D. By using the assert.notStatusCode() method
Answer: B
Explanation: In QUnit, you can test if an AJAX request did not return a certain status code by using the assert.notAjaxStatusCode() method.
Hope by going through these Top 45 QUnit MCQs you guys have been able to gather that QUnit is a powerful and easy-to-use JavaScript testing framework that helps developers write reliable and error-free code. By using its various methods and functions, developers can efficiently test their code and catch any bugs or errors. Now keep following our Freshersnow portal to get the latest updates related to IT concepts.