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What is Gulpjs and some multiple choice questions on Gulp

Different questions on Docker Container Orcas

In Master-Slave databases, all writes are written to the ____________.

Which of the following services is free?

Cassandra Interview Questions Part

Identify the correct statement in the following in secure programming questions

cache Interview Questions Part1

SaaS supports multiple users and provides a shared data model through ________ model.

Which of the following is cloud computing key enabling technologies?

Classification problems aid in predicting __________ outputs.

DaaS is utilized for provisioning critical data on demand.

Developers and organizations all around the world leverage ______ extensively.

Multiple choice questions on Javascript

More 53 questions on azure

__________ aids in identifying associations, correlations, and frequent patterns in data.

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To test a particular function which throws an error when it's called, you can use toThrow. View:-7914
Question Posted on 20 Feb 2019

To test a particular function which throws an error when it's called, you can use toThrow.
(1)False
(....

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______________ resets all information stored in the mock, including any inital implementation given. View:-5889
Question Posted on 20 Feb 2019

______________ resets all information stored in the mock, including any inital implementation given.
(1)m....

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Jest uses ________ and ________ matchers to test a value is with exact equality. View:-5329
Question Posted on 20 Feb 2019

Jest uses ________ and ________ matchers to test a value is with exact equality.
(1)toBeTruthy, toBeFalsy....

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Jest records all calls that have been made during mock function and it is stored in ______________ array. View:-12495
Question Posted on 20 Feb 2019

Jest records all calls that have been made during mock function and it is stored in ______________ array.

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Snapshot tests are a useful tool whenever you want to make sure your UI does not change unexpectedly. View:-7400
Question Posted on 20 Feb 2019

Snapshot tests are a useful tool whenever you want to make sure your UI does not change unexpectedly.
(1)....

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Jest will wait until the ______________ callback is called before finishing the test. View:-8250
Question Posted on 20 Feb 2019

Jest will wait until the ______________ callback is called before finishing the test.
(1)finish
(2)do....

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mockRestore() removes the mock and restores the initial implementation View:-7818
Question Posted on 18 Feb 2019

mockRestore() removes the mock and restores the initial implementation.
(1)False
(2)True

Ans....

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The matcher toContain is used _________. View:-8902
Question Posted on 18 Feb 2019

The matcher toContain is used _________.
(1)to check an object is present in a list
(2)To check if a ....

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Function's actual implementations can be mocked in test using ________ View:-3
Question Posted on 18 Feb 2019

Function's actual implementations can be mocked in test using ____________.
(1)mockImplementation(fn)

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Snapshot Testing is not supported in Jest. View:-4390
Question Posted on 18 Feb 2019

Snapshot Testing is not supported in Jest.
(1)False
(2)True

Answer:-(1)False....

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_____ returns the value only once when mock function is called. View:-7215
Question Posted on 18 Feb 2019

______________ returns the value only once when mock function is called.
(1)None of the options
(2)mo....

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Code coverage tests that how much code is covered under tests. View:-2875
Question Posted on 18 Feb 2019

Code coverage tests that how much code is covered under tests.
(1)True
(2)False

Answer:-(1)T....

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______________ resets all information stored in the mockFn.mock.calls and mockFn.mock.instances arrays. View:-5176
Question Posted on 27 Feb 2019

______________ resets all information stored in the mockFn.mock.calls and mockFn.mock.instances arrays.
(....

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When you execute ______________ Code, it will move on to another task before it finishes. View:-5424
Question Posted on 27 Feb 2019

When you execute ______________ Code, it will move on to another task before it finishes.
(1)Synchronous ....

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Jest is maintained by ______________ . View:-5677
Question Posted on 17 Feb 2019

Jest is maintained by ______________ .
(1)Google
(2)Facebook
(3)Microsoft
(4)apache

....

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Jest is a JavaScript unit testing framework. View:-2822
Question Posted on 17 Feb 2019

Jest is a JavaScript unit testing framework.
(1)True
(2)False

Answer:-(1)True....

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Jest works well with other testing libraries like ______________. View:-6785
Question Posted on 17 Feb 2019

Jest works well with other testing libraries like ______________.
(1)Enzyme
(2)Chai
(3)all the op....

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Jest is used to test _____________. View:-5877
Question Posted on 17 Feb 2019

Jest is used to test _____________.
(1)Java
(2)Python
(3)JavaScript
(4)Ruby

Answer:-....

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______________ matcher matches only undefined. View:-5047
Question Posted on 14 Feb 2019

______________ matcher matches only undefined.
(1)toBeDefined
(2)toBeTruthy
(3)toBeUndefined
....

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______________ recursively checks every field of an object or array. View:-7079
Question Posted on 14 Feb 2019

______________ recursively checks every field of an object or array.
(1)toMatch
(2)toBe
(3)toBeEq....

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.mock is a property of mock function, the place where all information about how the function has been called is kept. View:-8733
Question Posted on 27 Feb 2019

.mock is a property of mock function, the place where all information about how the function has been called ....

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If you expect a promise to be rejected, use the ______________ matcher. If the promise is fulfilled, the test will automatically fail. View:-7767
Question Posted on 27 Feb 2019

If you expect a promise to be rejected, use the ______________ matcher. If the promise is fulfilled, the test....

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For Code Coverage Support Jest requires some additional setup and libr View:-6970
Question Posted on 18 Feb 2019

For Code Coverage Support Jest requires some additional setup and libraries .
(1)False
(2)True
<....

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How to run your test in terminal? View:-5639
Question Posted on 18 Feb 2019

How to run your test in terminal?
(1)npm test
(2)all the options
(3)npm run test
(4)npm t

ADS Posted In : Frameworks | Jest

How to install Jest using yarn? View:-5337
Question Posted on 18 Feb 2019

How to install Jest using yarn?
(1)yarn install –dev jest
(2)yarn add --dev jest
(3)yarn install ....

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mockRestore() works only when mock was created with ______________. View:-6013
Question Posted on 18 Feb 2019

mockRestore() works only when mock was created with ______________.
(1)jest.fn()
(2)jest.spyFn()
....

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The Asynchronous code will move on to another task before it finishes. View:-9812
Question Posted on 18 Feb 2019

The Asynchronous code will move on to another task before it finishes.
(1)False
(2)True

Answ....

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What is the command to install Jest and the babel-jest? View:-10167
Question Posted on 18 Feb 2019

What is the command to install Jest and the babel-jest?
(1)$ npm install --save-dev jest babel-jest
(....

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Jest supports _____for Isolating functionality into small testable View:-11004
Question Posted on 18 Feb 2019

Jest supports ______________ for Isolating functionality into small, testable units under test.
(1)Matche....

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To create a mock function, we use ***jest.fn()***. View:-3420
Question Posted on 18 Feb 2019

To create a mock function, we use ***jest.fn()***.
(1)True
(2)False

Answer:-(1)True....

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The below test will pass. View:-7356
Question Posted on 18 Feb 2019

The below test will pass.
const value = 0.1 + 0.2;
expect(value).toBe(0.3);
(1)True
(2)False ....

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The number can be compared using __________. View:-9032
Question Posted on 18 Feb 2019

The number can be compared using __________.
(1)toBeGreaterThanOrEqual
(2)All the options
(3)toBe....

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