Automate request traffic recording and replay for tests.
Instead of mocking requests or setting up nock for every test manually, this setup allows to mark tests that make requests to other systems and automatically record and replay requests made during a test run. After recording the requests for your test suite, it will never make real network requests again, so you don't need these external systems available during a test run and your test suite will run much faster, while still ensuring your project integrates well will the used APIs.
it.nock('uses some method that makes requests to external services', () => {
const result = await makeSomeRequestsAndCombineThem();
expect(result).toBe(derivate);
});yarn add jest-nock
To use jest-nock with your jest setup, add it to your testFramework file setup as follows:
const { upgradeJasmine } = require('jest-nock');
upgradeJasmine(jasmine, global);- Mark a test to be recorded/replayed with
it.nock(...) - Set
JEST_NOCK_RECORD=truein your environment and run the tests you want to record against some real/mock/test API.
Recorded requests will be stored in a folder called __nocks__ next to the file containing the test/suite.
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Copyright 2018 Sebastian Herrlinger (SPRING Axel Springer Digital News Media GmbH)
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