over 8 years ago
Installation:
It is simple and easy to use. You can easily fake any interface using sinon. Here, I am going to tell how to use sinon to make a stub of any ORM provided method in node.js.
Sample code:
const sinon = require('sinon');const expect = require('unexpected');const Chance = require('chance');const chance = new Chance();describe('claim route', () => {const baseUrl = '/api/v1/claim';const middleware = server(0, true);let token = null;beforeEach(cb => {/** @ignore **/function authenticated(authenticatedToken) {token = authenticatedToken;cb();}ampsInitialize(() => {middlewareHelpers.beforeEach(middleware, 'jcowgar', authenticated);});});afterEach(() => {middlewareHelpers.afterEach();});describe('insert', () => {const insertUrl = `${baseUrl}/add-claim`;it('creates a new claim successfully.', cb => {sinon.stub(Claim, 'insertAndFetch', insertImpl);const data = {clientId: 192,groupAbbreviation: 'WEL0065'};request(middleware).post(insertUrl).send(data).set('Accept', 'application/json').set('Authorization', `Bearer ${token}`).expect(httpConstants.STATUS_CREATED_201).end((err, res) => {Claim.insertAndFetch.restore();if (err) {cb(err);} else {expect(res.status, 'to equal', httpConstants.STATUS_CREATED_201);cb();}});});});});
const sinon = require('sinon');
const expect = require('unexpected');
const Chance = require('chance');
const chance = new Chance();
describe('claim route', () => {
const baseUrl = '/api/v1/claim';
const middleware = server(0, true);
let token = null;
beforeEach(cb => {
/** @ignore **/
function authenticated(authenticatedToken) {
token = authenticatedToken;
cb();
}
ampsInitialize(() => {
middlewareHelpers.beforeEach(middleware, 'jcowgar', authenticated);
});
});
afterEach(() => {
middlewareHelpers.afterEach();
});
describe('insert', () => {
const insertUrl = `${baseUrl}/add-claim`;
it('creates a new claim successfully.', cb => {
sinon.stub(Claim, 'insertAndFetch', insertImpl);
const data = {
clientId: 192,
groupAbbreviation: 'WEL0065'
};
request(middleware)
.post(insertUrl)
.send(data)
.set('Accept', 'application/json')
.set('Authorization', `Bearer ${token}`)
.expect(httpConstants.STATUS_CREATED_201)
.end((err, res) => {
Claim.insertAndFetch.restore();
if (err) {
cb(err);
} else {
expect(res.status, 'to equal', httpConstants.STATUS_CREATED_201);
cb();
}
});
});
});
});
As, I am using objection.js ORM of node so my save() method is insertAndFetch() for me, I have stubbed insertAndFetch() method for my test case.
It will not make a call to db to create a record instead it will invoke my stubbed method.
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