d450fb237e
Replace 20% of all done() usages in frontend tests. Replaces all usages in elements/shared/... showcasing that there is no instance where the usage of done() is justified. Change-Id: I24b5644cd96c68097429583c44ae58301df374d6
124 lines
3.3 KiB
JavaScript
124 lines
3.3 KiB
JavaScript
/**
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* @license
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import '../../../test/common-test-setup-karma.js';
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import './gr-lib-loader.js';
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const basicFixture = fixtureFromElement('gr-lib-loader');
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suite('gr-lib-loader tests', () => {
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let element;
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let resolveLoad;
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let loadStub;
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setup(() => {
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element = basicFixture.instantiate();
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loadStub = sinon.stub(element, '_loadScript').callsFake(() =>
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new Promise(resolve => resolveLoad = resolve)
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);
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// Assert preconditions:
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assert.isFalse(element._hljsState.loading);
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});
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teardown(() => {
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if (window.hljs) {
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delete window.hljs;
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}
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// Because the element state is a singleton, clean it up.
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element._hljsState.configured = false;
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element._hljsState.loading = false;
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element._hljsState.callbacks = [];
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});
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test('only load once', async () => {
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sinon.stub(element, '_getHLJSUrl').returns('');
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const firstCallHandler = sinon.stub();
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element.getHLJS().then(firstCallHandler);
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// It should now be in the loading state.
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assert.isTrue(loadStub.called);
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assert.isTrue(element._hljsState.loading);
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assert.isFalse(firstCallHandler.called);
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const secondCallHandler = sinon.stub();
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element.getHLJS().then(secondCallHandler);
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// No change in state.
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assert.isTrue(element._hljsState.loading);
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assert.isFalse(firstCallHandler.called);
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assert.isFalse(secondCallHandler.called);
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// Now load the library.
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resolveLoad();
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await flush();
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// The state should be loaded and both handlers called.
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assert.isFalse(element._hljsState.loading);
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assert.isTrue(firstCallHandler.called);
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assert.isTrue(secondCallHandler.called);
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});
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suite('preloaded', () => {
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let hljsStub;
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setup(() => {
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hljsStub = {
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configure: sinon.stub(),
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};
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window.hljs = hljsStub;
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});
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teardown(() => {
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delete window.hljs;
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});
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test('returns hljs', async () => {
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const firstCallHandler = sinon.stub();
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element.getHLJS().then(firstCallHandler);
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await flush();
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assert.isTrue(firstCallHandler.called);
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assert.isTrue(firstCallHandler.calledWith(hljsStub));
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});
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test('configures hljs', () => element.getHLJS().then(() => {
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assert.isTrue(window.hljs.configure.calledOnce);
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}));
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});
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suite('_getHLJSUrl', () => {
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suite('checking _getLibRoot', () => {
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let root;
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setup(() => {
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sinon.stub(element, '_getLibRoot').callsFake(() => root);
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});
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test('with no root', () => {
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assert.isNull(element._getHLJSUrl());
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});
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test('with root', () => {
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root = 'test-root.com/';
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assert.equal(element._getHLJSUrl(),
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'test-root.com/bower_components/highlightjs/highlight.min.js');
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});
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});
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});
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});
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