How to use the mock function from sinon

Find comprehensive JavaScript sinon.mock code examples handpicked from public code repositorys.

sinon.mock is a function in the Sinon.JS library used for creating mock objects that can be used to test function calls and their results.

models.js

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const User = require('../models/User');


describe('User Model', () => {
	it('should create a new user', (done) => {
		const UserMock = sinon.mock(
			new User({email: 'test@gmail.com', password: 'root'}),
		);
		const user = UserMock.object;

+ 4 other calls in file

test.js

GitHub: Vinylonprophet/Blogger-Mock

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describe('setRoutes:', () => {
  const am = apiMocker.createServer();
  let setRouteMock;

  beforeEach(() => {
    setRouteMock = sinon.mock(am, 'setRoute');
  });

  afterEach(() => {
    setRouteMock.restore();

+ 3 other calls in file

How does sinon.mock work?

sinon.mock is a method of the Sinon.js library used for creating mock objects that allow developers to test and simulate different scenarios in their code. It creates an object that can be used to track function calls and verify the behavior of the code being tested.

models.js

GitHub: kelseymiu/STIRLabs

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const User = require('../models/User');


describe('User Model', () => {
  it('should create a new user', (done) => {
    const UserMock = sinon.mock(new User({ email: 'test@gmail.com', password: 'root' }));
    const user = UserMock.object;


    UserMock
      .expects('save')

+ 34 other calls in file

Ai Example

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const sinon = require("sinon");
const assert = require("assert");

// create a mock object
const mock = sinon.mock();

// create an expectation that the mock will be called with a specific argument
mock.expects("foo").once().withArgs("bar");

// call the function under test with the expected argument
myFunction("bar");

// verify that the expectation was met
mock.verify();

function myFunction(arg) {
  // call the function that is expected to call the mock
  mock.foo(arg);
}

In this example, sinon.mock is used to create a mock object that can be used to test that a function is called with the correct arguments. The mock.expects method is used to set up an expectation that the foo method will be called once with the argument 'bar'. The myFunction function is then called with the argument 'bar', and the mock.verify method is used to verify that the expectation was met. If the expectation is not met, an error will be thrown.

Other functions in sinon

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sinon.stub is the most popular function in sinon (5777 examples)

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