ember-mocha
Advanced tools
ember-mocha simplifies testing of Ember applications with Mocha by providing Mocha-specific wrappers around the helpers contained in @ember/test-helpers.
Upgrading from an earlier version? Have a look at our Migration Guide.
ember-mocha is an Ember CLI addon, so install it
as you would any other addon:
$ ember install ember-mocha
Some other addons are detecting the test framework based on the installed
addon names and are expecting ember-cli-mocha instead. If you have issues
with this then ember install ember-cli-mocha, which should work exactly
the same.
The following section describes the use of Ember Mocha with the latest modern Ember testing APIs, as laid out in the RFCs 232 and 268.
For the older APIs have a look at our Legacy Guide.
Your tests/test-helper.js file should look similar to the following, to
correctly setup the application required by @ember/test-helpers:
import Application from '../app';
import config from '../config/environment';
import { setApplication } from '@ember/test-helpers';
import { start } from 'ember-mocha';
setApplication(Application.create(config.APP));
start();
Also make sure that you have set ENV.APP.autoboot = false; for the test
environment in your config/environment.js.
The setupTest() function can be used to setup a unit test for any kind
of "module/unit" of your application that can be looked up in a container.
It will setup your test context with:
this.owner to interact with Ember's Dependency Injection
systemthis.set(), this.setProperties(), this.get(), and this.getProperties()this.pauseTest() method to allow easy pausing/resuming of testsFor example, the following is a unit test for the SidebarController:
import { expect } from 'chai';
import { describe, it } from 'mocha';
import { setupTest } from 'ember-mocha';
describe('SidebarController', function() {
setupTest();
// Replace this with your real tests.
it('exists', function() {
let controller = this.owner.lookup('controller:sidebar');
expect(controller).to.be.ok;
});
});
If you find that test helpers from other addons want you to pass a hooks
object you can do so like this:
let hooks = setupTest();
setupMirage(hooks);
This will make sure that in functions passed to hooks.afterEach() the
this.owner and other things that setupTest() sets up are still available.
Mocha itself runs afterEach hooks in a different order than QUnit, which is
why this "workaround" is sometimes needed.
The setupRenderingTest() function is specifically designed for tests that
render arbitrary templates, including components and helpers.
It will setup your test context the same way as setupTest(), and additionally:
render()this.element to your test context which returns the DOM element
representing the wrapper around the elements that were rendered via
render()@ember/test-helpers (click(), fillIn(), ...)import { expect } from 'chai';
import { describe, it } from 'mocha';
import { setupRenderingTest } from 'ember-mocha';
import { render } from '@ember/test-helpers';
import hbs from 'htmlbars-inline-precompile';
describe('GravatarImageComponent', function() {
setupRenderingTest();
it('renders', async function() {
await render(hbs`{{gravatar-image}}`);
expect(this.element.querySelector('img')).to.exist;
});
});
The setupApplicationTest() function can be used to run tests that interact
with the whole application, so in most cases acceptance tests.
On top of setupTest() it will:
click(), fillIn(), ...) as well as the Routing Helpers
(visit(), currentURL(), ...) from @ember/test-helpersimport { expect } from 'chai';
import { describe, it } from 'mocha';
import { setupApplicationTest } from 'ember-mocha';
import { visit, currentURL } from '@ember/test-helpers';
describe('basic acceptance test', function() {
setupApplicationTest();
it('can visit /', async function() {
await visit('/');
expect(currentURL()).to.equal('/');
});
});
For instructions how to upgrade your test suite please read our Migration Guide.
Contributions are welcome. Please follow the instructions below to install and test this library.
npm install
In order to test in the browser:
npm start
... and then visit http://localhost:4200/tests.
In order to perform a CI test:
npm test
Copyright 2014 Switchfly
This product includes software developed at Switchfly (http://www.switchfly.com).
NOTICE: Only our own original work is licensed under the terms of the Apache License Version 2.0. The licenses of some libraries might impose different redistribution or general licensing terms than those stated in the Apache License. Users and redistributors are hereby requested to verify these conditions and agree upon them.
v0.16.2 (2019-11-23)
FAQs
Mocha helpers for testing Ember.js applications
The npm package ember-mocha receives a total of 3,134 weekly downloads. As such, ember-mocha popularity was classified as popular.
We found that ember-mocha demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 14 open source maintainers collaborating on the project.
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