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endpoint-test-mocker

v0.4.0

Published

Endpoint test mocker util to ease up mocking up endpoint calls when testing a server or client behaviour. Note that this is in experimental phase so API may change later on.

Downloads

4

Readme

Endpoint test mocker

Endpoint test mocker util to ease up mocking up endpoint calls when testing a server or client behaviour. Note that this is in experimental phase so API may change later on.

Features

  • Create realistic, random and consistent mocked data for your tests.
  • Keep mocked data code readable by writing only the data structure related code.
  • Array helpers generate random but consistent mocked data from given set of data.

This package doesn't provide data mocking functions but it works very well with chancejs or fakerjs.

Install

npm install endpoint-test-mocker --save-dev

Usage

  1. Create a new class which extends EndpointMock and create methods to mock your endpoint calls.
import { EndpointMock, helpers } from 'endpoint-test-mocker';

const username = ['User1', 'User2', 'User3'];
const tags = ['coder', 'designer', 'developer', 'UX'];

class UserAPI extends EndpointMock {
  getUsers() {
    return this.arrayBuilder(index => ({
      id: this.seed + index,
      username: helpers.fromArray(usernames, this.seed + index),
      points: helpers.betweenIntegers({ min: 0, max: 20 }, this.seed + index),
      tags: helpers.multipleFromArray(tags, 2, this.seed),
    }));
  }
}
  1. Create tests for your code and use your class to mock the endpoint implementation.
const userAPIMock = new UserAPI();
userAPI.getUsers = jest.fn(() => userAPIMock.getUsers());

For example see examples/SimpleExample

Author

License

MIT