Free Jasmine JavaScript Knowledge Questions and Answers

Question 1

How does Jasmine test exceptions?

Accepted Answer

Use the `toThrowError()` matcher.

Answer

Use the `catch()` function.

Answer

Use the `try...catch` statement.

Answer

Use the `expectError()` function.

Question 2

Which Jasmine function is employed in a test specification to simulate asynchronous operations?

Accepted Answer

`done()`

Answer

`async()`

Answer

`fakeAsync()`

Answer

`setTimeout()`

Question 3

Which Jasmine function is used to specify a test suite?

Accepted Answer

`describe()`

Answer

`it()`

Answer

`suite()`

Answer

`test()`

Question 4

Which Jasmine function is used to specify a test specification?

Accepted Answer

`it()`

Answer

`describe()`

Answer

`test()`

Answer

`spec()`

Question 5

What does Jasmine's "beforeEach()" function do?

Accepted Answer

Runs code before each test spec within a suite

Answer

Defines a custom matcher

Answer

Defines a new test suite

Answer

Asserts a condition in a test

Question 6

Which Jasmine method does your test specification's assertion use?

Accepted Answer

`expect()`

Answer

`verify()`

Answer

`assert()`

Answer

`validate()`

Question 7

What does Jasmine's "matcher" mean?

Accepted Answer

A function that compares actual and expected values in a test

Answer

A function that runs after test spec

Answer

A function that defines a new test suite

Answer

A function that sets up test data

Question 8

Which matcher does Jasmine employ to determine whether two values are equal?

Accepted Answer

toEqual()

Answer

toBe()

Answer

isEqual()

Answer

toBeEqual()

Question 9

What does Jasmine's spyOn() function accomplish?

Accepted Answer

Sets up a spy to track function calls

Answer

Defines a custom matcher

Answer

Creates a mock function

Answer

Defines a new test spec

Question 10

What is a "fixture" in Jasmine?

Accepted Answer

A sample input used for testing

Answer

A synonym for a test spec

Answer

A function that defines a test suite

Answer

A custom assertion function