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@quoin/node-test-helpers-core

v2.0.1

Published

Core test helpers library for nodeJS with Chai plugins

Downloads

8

Readme

node-test-helpers-core

Build Status

This is a helper library to limit the number of packages to install in your project. Because of the nature of chai plugins, this library only include the core for your tests. You will need to write a local helper to include all your chai plugins,

To install

To add the library to your project:

npm install --save-dev @quoin/node-test-helpers-core

Usage

local-helper.js:

const testHelpers = require('@quoin/node-test-helpers-core');
const dirtyChai = require('dirty-chai');

testHelpers.chai.use(dirtyChai);

module.exports = testHelpers;

file.unit.test.js:

const testHelpers = require('./local-helpers');
const moduleToTest = require('./index');

const expect = testHelpers.expect;

describe("index", () => {
    it("should export a function with 2 params", () => {
        expect(index).to.be.a('function').to.have.lengthOf(2);
    });
});

See the lib/index.js file to see what libraries are imported and refer to their respective documentation.

Examples

createMocks, createRequest and createResponse

See node-mocks-http for more details.

it("should set headers", () => {
  const {req, res} = testHelpers.createMocks();
});

verifyHal

To verify that a portion of a response (or the entire reponse is a valid HAL:

it("should be a valid HAL", () => {
    const someResponseFromServer = requestCall();
    testHelpers.verifyHal(someResponseFromServer.body);
});

verifyProperties

To verify all properties of an object:

it("should expose known properties", () => {
  const clone = _.clone(moduleToTest);

  testHelpers.verifyProperties(clone, 'string', [
    'prop1',
    'prop2'
  ]);

  testHelpers.verifyProperties(clone, 'function', [
    'prop3',
    'prop4'
  ]);

  expect(clone).to.deep.equal({});
});