run-parallel.test.js

import { assert } from 'chai';
import runParallel from '../src/run-parallel';

let contextBefore;
let that;

function test (tester) {
  return function (contextCloned) {
    that = this;
    tester(contextCloned);
  };
}

describe('transactions - runParallel', () => {
  beforeEach(() => {
    that = undefined;

    contextBefore = {
      type: 'before',
      method: 'create',
      params: { provider: 'rest' },
      data: { first: 'John', last: 'Doe' } };
  });

  it('runs the func', done => {
    runParallel(test(tester), 0)(contextBefore);

    function tester () {
      done();
    }
  });

  it('passes this', done => {
    runParallel(test(tester), 0).call({ bar: true }, contextBefore);

    function tester () {
      assert.strictEqual(that.bar, true);
      done();
    }
  });

  it('defaults to uncloned context', done => {
    runParallel(test(tester))(contextBefore);
    contextBefore._foo = true;

    function tester (contextCloned) {
      assert.property(contextCloned, '_foo');
      done();
    }
  });

  it('clones', done => {
    runParallel(test(tester), 1)(contextBefore);
    contextBefore._foo = true;

    function tester (contextCloned) {
      assert.notProperty(contextCloned, '_foo');
      done();
    }
  });

  it('Throws if no func', () => {
    assert.throws(() => {
      runParallel()(contextBefore);
    });
  });
});