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