- title: proxyquire — Proxies nodejs require in order to allow overriding dependencies during testing
  url: https://github.com/thlorenz/proxyquire

- title: sisyphos — utility to stub modules imported with the System.js module loader
  url: https://github.com/codazzo/sisyphos

- title: bogus — utility for mocking dependencies when testing RequireJS based projects
  url: https://github.com/mroderick/bogus

- title: fetch-mock — Mock http requests made using fetch
  url: http://www.wheresrhys.co.uk/fetch-mock/

- title: Mock Socket — mocking library for websockets and socket.io
  url: https://github.com/thoov/mock-socket

- title: wrapple — generic wrapper for browser natives (or other globals) to allow stubbing in unit tests
  url: https://github.com/mroderick/wrapple

- title: test double — minimal test double library for TDD with JavaScript
  url: https://github.com/testdouble/testdouble.js

- title: proxyquire — Proxies nodejs require in order to allow overriding dependencies during testing
  url: https://github.com/thlorenz/proxyquire

- title: sisyphos — utility to stub modules imported with the System.js module loader
  url: https://github.com/codazzo/sisyphos

- title: bogus — utility for mocking dependencies when testing RequireJS based projects
  url: https://github.com/mroderick/bogus

- title: fetch-mock — Mock http requests made using fetch
  url: http://www.wheresrhys.co.uk/fetch-mock/

- title: fake-fetch — fake window.fetch for tests
  url: https://github.com/msn0/fake-fetch

- title: Mock Socket — mocking library for websockets and socket.io
  url: https://github.com/thoov/mock-socket

- title: wrapple — generic wrapper for browser natives (or other globals) to allow stubbing in unit tests
  url: https://github.com/mroderick/wrapple

- title: test double — minimal test double library for TDD with JavaScript
  url: https://github.com/testdouble/testdouble.js

Add fake-fetch to related libraries
Add fake-fetch to related libraries
