Merge branch '24927-custom-event-polyfill-test' into 'master'

Adds tests for Custom Event polyfill ## What does this MR do? Adds tests for CustomEvent polyfill. ## Does this MR meet the acceptance criteria? - [x] [Changelog entry](https://docs.gitlab.com/ce/development/changelog.html) added - [ ] [Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md) - [ ] API support added - Tests - [x] Added for this feature/bug - [x] All builds are passing - [x] Conform by the [merge request performance guides](http://docs.gitlab.com/ce/development/merge_request_performance_guidelines.html) - [x] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides) - [x] Branch has no merge conflicts with `master` (if it does - rebase it please) - [x] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits) ## What are the relevant issue numbers? Closes #24927 See merge request !7996

Merge branch '24927-custom-event-polyfill-test' into 'master'
1fca9658 · Alfredo Sumaran · abad9a9b · 7caab6c2 · 1fca9658 · 1fca9658
Commit 1fca9658 authored Dec 14, 2016 by Alfredo Sumaran
Showing with 47 additions and 0 deletions

24927-custom-event-polyfill-test.yml changelogs/unreleased/24927-custom-event-polyfill-test.yml +4 -0

custom_event_polyfill_spec.js.es6 spec/javascripts/lib/utils/custom_event_polyfill_spec.js.es6 +43 -0

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--- a/changelogs/unreleased/24927-custom-event-polyfill-test.yml
+++ b/changelogs/unreleased/24927-custom-event-polyfill-test.yml
+---
+title: Adds tests for custom event polyfill
+merge_request: 7996
+author:
--- a/spec/javascripts/lib/utils/custom_event_polyfill_spec.js.es6
+++ b/spec/javascripts/lib/utils/custom_event_polyfill_spec.js.es6
+//= require lib/utils/custom_event_polyfill
+
+describe('Custom Event Polyfill', () => {
+  it('should be defined', () => {
+    expect(window.CustomEvent).toBeDefined();
+  });
+
+  it('should create a `CustomEvent` instance', () => {
+    const e = new window.CustomEvent('foo');
+
+    expect(e.type).toEqual('foo');
+    expect(e.bubbles).toBe(false);
+    expect(e.cancelable).toBe(false);
+    expect(e.detail).toBeFalsy();
+  });
+
+  it('should create a `CustomEvent` instance with a `details` object', () => {
+    const e = new window.CustomEvent('bar', { detail: { foo: 'bar' } });
+
+    expect(e.type).toEqual('bar');
+    expect(e.bubbles).toBe(false);
+    expect(e.cancelable).toBe(false);
+    expect(e.detail.foo).toEqual('bar');
+  });
+
+  it('should create a `CustomEvent` instance with a `bubbles` boolean', () => {
+    const e = new window.CustomEvent('bar', { bubbles: true });
+
+    expect(e.type).toEqual('bar');
+    expect(e.bubbles).toBe(true);
+    expect(e.cancelable).toBe(false);
+    expect(e.detail).toBeFalsy();
+  });
+
+  it('should create a `CustomEvent` instance with a `cancelable` boolean', () => {
+    const e = new window.CustomEvent('bar', { cancelable: true });
+
+    expect(e.type).toEqual('bar');
+    expect(e.bubbles).toBe(false);
+    expect(e.cancelable).toBe(true);
+    expect(e.detail).toBeFalsy();
+  });
+});