realm-js/tests/js/async-tests.js

140 lines
4.6 KiB
JavaScript

////////////////////////////////////////////////////////////////////////////
//
// Copyright 2016 Realm Inc.
//
// Licensed 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.
//
////////////////////////////////////////////////////////////////////////////
/* eslint-env es6, node */
'use strict';
const Realm = require('realm');
const TestCase = require('./asserts');
const schemas = require('./schemas');
const Worker = require('./worker');
function createNotificationTest(config, getObservable, addListener, removeListener, messages, expectedCount) {
return new Promise((resolve, reject) => {
let realm = new Realm(config);
let observable = getObservable(realm);
let worker = new Worker(__dirname + '/worker-tests-script.js', [REALM_MODULE_PATH]);
// Test will fail if it does not receive a change event within a second.
let timer = setTimeout(() => {
reject(new Error('Timed out waiting for change notification'));
}, 5000);
let cleanup = () => {
clearTimeout(timer);
worker.terminate();
};
var count = 0;
var listener = addListener(observable, () => count++, resolve, reject, cleanup);
messages.push(['echo', 'resolve']);
var messageIndex = 0;
worker.onmessage = (message) => {
if (message.error) {
reject(message.error);
cleanup();
}
else if (message.result == 'resolve') {
if (count != expectedCount) {
reject('Notification count ' + count + ' not equal to expected count ' + expectedCount);
}
else {
resolve();
}
cleanup();
}
else {
if (message.result == 'removeListener') {
removeListener(observable, listener);
}
worker.postMessage(messages[messageIndex++]);
}
};
worker.postMessage(messages[messageIndex++]);
});
}
function createCollectionChangeTest(config, createCollection, messages, expected, removeAll) {
return createNotificationTest(
config,
createCollection,
(collection, increment, resolve, reject, cleanup) => {
var listener = (object, changes) => {
try {
var notificationCount = increment();
TestCase.assertArraysEqual(changes.insertions, expected[notificationCount][0]);
TestCase.assertArraysEqual(changes.deletions, expected[notificationCount][1]);
TestCase.assertArraysEqual(changes.modifications, expected[notificationCount][2]);
} catch (e) {
reject(e);
cleanup();
}
};
collection.addListener(listener);
return listener;
},
removeAll ? (observable) => observable.removeAllListeners() :
(observable, listener) => observable.removeListener(listener),
messages,
expected.length
);
}
const ListObject = {
name: 'ListObject',
properties: {
list: {type: 'list', objectType: 'TestObject'},
}
};
const PrimaryListObject = {
name: 'PrimaryListObject',
properties: {
list: {type: 'list', objectType: 'IntPrimaryObject'},
}
};
module.exports = {
testChangeNotifications() {
var config = { schema: [schemas.TestObject] };
return createNotificationTest(
config,
(realm) => realm,
(realm, increment, resolve, reject, cleanup) => realm.addListener('change', () => {
try {
var objects = realm.objects('TestObject');
TestCase.assertEqual(objects.length, 1);
TestCase.assertEqual(objects[0].doubleCol, 42);
increment();
} catch (e) {
reject(e);
cleanup();
}
}),
undefined,
[[config, 'create', 'TestObject', [{doubleCol: 42}]]],
1
);
},
};