rewire-test-helper v0.3.1

rewire-test-helper

DEPRECATED: Prefer using __rewire_reset_all__() provided by babel-plugin-rewire since version 1.1.0! This is safer and does not accumulate calls to global afterEach hooks.

Simplify working with babel-plugin-rewire. Automatically reset rewired dependencies in your testing framework's afterEach hook.

Usage

Use with, e.g., mocha, chai, and sinon.

import {someMethod, __RewireAPI__} from './module-to-test';
import {rewire} from 'rewire-test-helper';

describe('someMethod', function() {
  const moduleToTest = rewire(__RewireAPI__);

  it('should do something', function() {
    const importedFunctionStub = sinon.stub();
    moduleToTest.replace('anImportedFunction', importedFunctionStub);

    someMethod();
    expect(importedFunctionStub).to.have.been.called;
  });
});

Any imported dependency in module-to-test can be replaced by something else using replace. By default, all imports will be reset after each test using the afterEach hook of the test framework.