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Ember
v1.12.0.
Almost every test has a pattern of visiting a route, interacting with the page (using the helpers), and checking for expected changes in the DOM.
Example:
tests/acceptance/root-lists-first-page-of-posts-test.js
test('root lists first page of posts', function(assert){
visit('/posts');
andThen(function() {
assert.equal(find('ul.posts li').length, 3, 'The first page should have 3 posts');
});
});
The helpers that perform actions use a global promise object and automatically chain onto that promise object if it exists. This allows you to write your tests without worrying about async behaviour your helper might trigger.
tests/acceptance/new-post-appears-first-test.js
var application;
module('Acceptance: New Post Appears First', {
beforeEach: function() {
application = startApp();
},
afterEach: function() {
Ember.run(application, 'destroy');
}
});
test('add new post', function(assert) {
visit('/posts/new');
fillIn('input.title', 'My new post');
click('button.submit');
andThen(function() {
assert.equal(find('ul.posts li:first').text(), 'My new post');
});
});
Testing Transitions
Suppose we have an application which requires authentication. When a visitor visits a certain URL as an unauthenticated user, we expect them to be transitioned to a login page.
app/routes/profile.js
export default Ember.Route.extend({
beforeModel: function() {
var user = this.modelFor('application');
if (Ember.isEmpty(user)) {
this.transitionTo('login');
}
}
});
We could use the route helpers to ensure that the user would be redirected to the login page when the restricted URL is visited.
tests/acceptance/transitions-test.js
var application;
module('Acceptance: Transitions', {
beforeEach: function() {
application = startApp();
},
afterEach: function() {
Ember.run(application, 'destroy');
}
});
test('visiting /profile', function(assert) {
visit('/profile');
andThen(function() {
assert.equal(currentRouteName(), 'login');
assert.equal(currentPath(), 'login');
assert.equal(currentURL(), '/login');
});
});