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#Nock-VCR

Like the Ruby VCR gem, record your test-suite's HTTP interactions and replay them during future runs for speedy, deterministic, and accurate tests. Built atop nock's testing and recording capability.

Installation

npm install nock-vcr

Usage

In your tests, require nock-vcr. Then use insertCassette to mark the start of where recording - and later playback - should begin and ejectCassette where it should end. Recorded "cassettes" - nock code to mock the transactions - will be saved under test/cassettes!

For example:

nvcr = require 'nock-vcr'

fs = require 'fs'
http = require 'http'

requestComplete = false

describe 'using nock-vcr', ->
  context 'insert a cassette, and eject it when it is done', ->
    beforeEach (done)->
      nvcr.insertCassette 'Your cassette name here'
      options = method: 'GET', host: 'google.com', port: 80, path: '/'
      http.request(options, (res)=>
        res.on 'end', =>
          requestComplete = true
          nvcr.ejectCassette()
          done()
      ).end()

    it 'creates a cassette', ->
      expect(requestComplete).to.be.true

You can force nock-vcr to record all the time by passing and setting a record option of insertCassette to the string 'ALL', or by setting the environment variable NOCK_VCR_MODE to the same value.

Notes

Currently this runs on top of a modified version of nock that corrects a bug in the code generated during recording as well as a way to re-activate mocking after a restore.

Upcoming Features

  • More options that can affect the recording behavior.
  • Hooks into popular testing frameworks.

About

Automate the recording and plack-back functionality provided by nock.

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