78 lines
2.9 KiB
JavaScript
78 lines
2.9 KiB
JavaScript
// Licensed to the Software Freedom Conservancy (SFC) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The SFC licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. 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,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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'use strict';
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const promise = require('../../lib/promise');
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const {enablePromiseManager} = require('../../lib/test/promise');
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describe('Promises/A+ Compliance Tests', function() {
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enablePromiseManager(() => {
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// The promise spec does not define behavior for unhandled rejections and
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// assumes they are effectively swallowed. This is not the case with our
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// implementation, so we have to disable error propagation to test that the
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// rest of our behavior is compliant.
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// We run the tests with a separate instance of the control flow to ensure
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// disablign error propagation does not impact other tests.
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var flow = new promise.ControlFlow();
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flow.setPropagateUnhandledRejections(false);
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// Skip the tests in 2.2.6.1/2. We are not compliant in these scenarios.
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var realDescribe = global.describe;
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global.describe = function(name, fn) {
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realDescribe(name, function() {
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var prefix = 'Promises/A+ Compliance Tests '
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+ 'SELENIUM_PROMISE_MANAGER=true 2.2.6: '
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+ '`then` may be called multiple times on the same promise.';
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var suffix = 'even when one handler is added inside another handler';
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if (this.fullTitle().startsWith(prefix)
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&& this.fullTitle().endsWith(suffix)) {
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var realSpecify = global.specify;
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try {
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global.specify = function(name) {
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realSpecify(name);
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};
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fn();
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} finally {
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global.specify = realSpecify;
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}
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} else {
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fn();
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}
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});
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};
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require('promises-aplus-tests').mocha({
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resolved: function(value) {
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return new promise.Promise((fulfill) => fulfill(value), flow);
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},
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rejected: function(error) {
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return new promise.Promise((_, reject) => reject(error), flow);
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},
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deferred: function() {
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var d = new promise.Deferred(flow);
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return {
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resolve: d.fulfill,
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reject: d.reject,
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promise: d.promise
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};
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}
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});
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global.describe = realDescribe;
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});
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});
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