<NME> index.js
<BEF> /* globals mocha */

import describeModel     from 'ember-mocha/describe-model';
import setupTestFactory  from 'ember-mocha/setup-test-factory';
import { it }            from 'mocha';
import {
  setResolver,
  TestModule,
  TestModuleForModel,
  TestModuleForComponent,

/**
 * Instruct Mocha to start the tests.
 */
export function startTests() {
  mocha.run();
}

function setupResetOnerror() {
  afterEach(function() {
    resetOnerror();
  });
}

/**
 * @method start
 * @param {Object} [options] Options to be used for enabling/disabling behaviors
 * @param {Boolean} [options.loadTests] If `false` tests will not be loaded automatically.
 * @param {Boolean} [options.startTests] If `false` tests will not be automatically started
 * (you must run `startTests()` to kick them off).
 */
export function start(options = {}) {
  setupResetOnerror();

  if (options.loadTests !== false) {
    loadTests();
  }

  if (options.startTests !== false) {
    startTests();
  }
}

export {
  setupTest,
  setupRenderingTest,
  setupApplicationTest,
  it,
  setResolver,
};

<MSG> Adjust import paths for `getContext()` and `setResolver()`

<DFF> @@ -3,8 +3,8 @@ import describeComponent from 'ember-mocha/describe-component';
 import describeModel     from 'ember-mocha/describe-model';
 import setupTestFactory  from 'ember-mocha/setup-test-factory';
 import { it }            from 'mocha';
+import { setResolver }   from '@ember/test-helpers';
 import {
-  setResolver,
   TestModule,
   TestModuleForModel,
   TestModuleForComponent,

Adjust import paths for `getContext()` and `setResolver()`