Package Exports

superagent-mocker

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Readme

superagent-mocker

REST API mocker for the browsers. LOOK MA NO BACKEND! 👐

Written for superagent.

Install

npm i superagent-mocker

Usage

Setup

var request = require('superagent');
var mock = require('superagent-mocker')(request);

Timeout

You can provide custom timeout, that can be a function or a number. Just set timeout property to the mock:

var mock = require('superagent-mocker');

// set just number
mock.timeout = 100;

// Or function to get random
mock.timeout = function () {
  return Math.random() * 1e4 |0;
}

Get

You may set headers using the mock.set(). To ensure header keys are not case sensitive, all keys will be transformed to lower case (see example).

mock.get('/topics/:id', function(req) {
  return {
    id: req.params.id,
    content: 'Hello World!',
    headers: req.headers
  };
});

request
  .get('/topics/1')
  .set({ 'X-Custom-Header': 'value of header' })
  .end(function(err, data) {
    console.log(data); // { id: 1, content: 'Hello World', headers: { 'x-custom-header': 'value of header' } }
  })
;

mock.del() works in a similar way.

Post

You may set the body of a POST request as the second parameter of mock.post() or in mock.send(). Values set in send() will overwrite previously set values.

mock.post('/topics/:id', function(req) {
  return {
    id: req.params.id,
    body: req.body
  };
});

request
  .post('/topics/5', {
    content: 'I will be overwritten',
    fromPost: 'Foo'
  })
  .send({
    content: 'Hello world',
    fromSend: 'Bar'
  })
  .end(function(err, data) {
    console.log(data); // { id: 5, body: { content: 'Hello world', fromPost: 'Foo', fromSend: 'Bar' } }
  })
;

mock.put() method works in a similar way.

Teardown

You can remove all of the route handlers by calling mock.clearRoutes(). This is useful when defining temporary route handlers for unit tests.

// Using the mocha testing framework
define('My API module', function(){

  beforeEach(function(){
    // Guarentee each test knows exactly which routes are defined
    mock.clearRoutes()
  })

  it('should GET /me', function(done){
    mock.get('/me', function(){done()})
    api.getMe()
  })

  it('should POST /me', function(done){
    // The GET route handler no longer exists
    // So there is no chance to see a false positive
    // if the function actually calls GET /me
    mock.post('/me', function(){done()})
    api.saveMe()
  })

})