realm-js/tests/js/linkingobjects-tests.js

199 lines
9.0 KiB
JavaScript

////////////////////////////////////////////////////////////////////////////
//
// Copyright 2017 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.
//
////////////////////////////////////////////////////////////////////////////
'use strict';
var Realm = require('realm');
var TestCase = require('./asserts');
var schemas = require('./schemas');
function names(results) {
return results.map(function(object) {
return object.name;
});
}
module.exports = {
testBasics: function() {
var realm = new Realm({schema: [schemas.PersonObject]});
var olivier, oliviersParents;
realm.write(function() {
olivier = realm.create('PersonObject', {name: 'Olivier', age: 0});
realm.create('PersonObject', {name: 'Christine', age: 25, children: [olivier]});
oliviersParents = olivier.parents;
TestCase.assertArraysEqual(names(oliviersParents), ['Christine']);
});
TestCase.assertArraysEqual(names(oliviersParents), ['Christine']);
var jp;
realm.write(function() {
jp = realm.create('PersonObject', {name: 'JP', age: 28, children: [olivier]});
TestCase.assertArraysEqual(names(oliviersParents), ['Christine', 'JP']);
});
realm.write(function() {
realm.delete(olivier);
TestCase.assertEqual(oliviersParents.length, 0);
});
},
testFilteredLinkingObjects: function() {
var realm = new Realm({schema: [schemas.PersonObject]});
var christine, olivier, oliviersParents;
realm.write(function() {
olivier = realm.create('PersonObject', {name: 'Olivier', age: 0});
christine = realm.create('PersonObject', {name: 'Christine', age: 25, children: [olivier]});
realm.create('PersonObject', {name: 'JP', age: 28, children: [olivier]});
oliviersParents = olivier.parents;
});
// Three separate queries so that accessing a property on one doesn't invalidate testing of other properties.
var resultsA = oliviersParents.filtered('age > 25');
var resultsB = oliviersParents.filtered('age > 25');
var resultsC = oliviersParents.filtered('age > 25');
realm.write(function() {
var removed = christine.children.splice(0);
TestCase.assertEqual(removed.length, 1);
});
TestCase.assertEqual(resultsA.length, 1);
TestCase.assertEqual(resultsB.filtered("name = 'Christine'").length, 0);
TestCase.assertArraysEqual(names(resultsC), ['JP']);
},
testFilteredLinkingObjectsByName: function() {
var realm = new Realm({schema: [schemas.PersonObject]});
var christine, olivier;
realm.write(function() {
olivier = realm.create('PersonObject', {name: 'Olivier', age: 0});
christine = realm.create('PersonObject', {name: 'Christine', age: 25, children: [olivier]});
realm.create('PersonObject', {name: 'JP', age: 28, children: [olivier]});
});
let people = realm.objects('PersonObject')
TestCase.assertEqual(people.filtered('parents.age > 25').length, 1);
TestCase.assertEqual(people.filtered('parents.age > 25')[0].name, 'Olivier');
TestCase.assertEqual(people.filtered('parents.@count == 2').length, 1);
TestCase.assertEqual(people.filtered('parents.name CONTAINS[c] "chris"').length, 1);
TestCase.assertEqual(people.filtered('parents.name.@size == 2').length, 1);
TestCase.assertEqual(people.filtered('25 IN parents.age').length, 1);
},
testNamedLinkingObjectsAcrossClasses: function() {
let realm = new Realm({schema: [schemas.Language, schemas.Country]});
realm.write(() => {
let english = realm.create('Language', {name: 'English'});
let french = realm.create('Language', {name: 'French'});
let danish = realm.create('Language', {name: 'Danish'});
let latin = realm.create('Language', {name: 'Latin'});
let canada = realm.create('Country', {name: 'Canada', languages: [english, french]});
let denmark = realm.create('Country', {name: 'Denmark', languages: [danish, english]});
let france = realm.create('Country', {name: 'France', languages: [french, english]});
});
let languages = realm.objects('Language');
{
let spokenInThreeCountries = languages.filtered('spokenIn.@count == 3');
TestCase.assertEqual(spokenInThreeCountries.length, 1);
TestCase.assertEqual(spokenInThreeCountries[0].name, 'English');
let spokenInTwoCountries = languages.filtered('spokenIn.@count == 2');
TestCase.assertEqual(spokenInTwoCountries.length, 1);
TestCase.assertEqual(spokenInTwoCountries[0].name, 'French')
let spokenInOneCountry = languages.filtered('spokenIn.@count == 1');
TestCase.assertEqual(spokenInOneCountry.length, 1);
TestCase.assertEqual(spokenInOneCountry[0].name, 'Danish')
let languagesSpokenInCanada = languages.filtered('spokenIn.name ==[c] "canada"');
TestCase.assertEqual(languagesSpokenInCanada.length, 2);
TestCase.assertEqual(languagesSpokenInCanada[0].name, 'English');
TestCase.assertEqual(languagesSpokenInCanada[1].name, 'French');
}
// check the same but using the unnamed relationship which is available to users
{
let spokenInThreeCountries = languages.filtered('@links.Country.languages.@count == 3');
TestCase.assertEqual(spokenInThreeCountries.length, 1);
TestCase.assertEqual(spokenInThreeCountries[0].name, 'English');
let spokenInTwoCountries = languages.filtered('@links.Country.languages.@count == 2');
TestCase.assertEqual(spokenInTwoCountries.length, 1);
TestCase.assertEqual(spokenInTwoCountries[0].name, 'French')
let spokenInOneCountry = languages.filtered('@links.Country.languages.@count == 1');
TestCase.assertEqual(spokenInOneCountry.length, 1);
TestCase.assertEqual(spokenInOneCountry[0].name, 'Danish')
let languagesSpokenInCanada = languages.filtered('@links.Country.languages.name ==[c] "canada"');
TestCase.assertEqual(languagesSpokenInCanada.length, 2);
TestCase.assertEqual(languagesSpokenInCanada[0].name, 'English');
TestCase.assertEqual(languagesSpokenInCanada[1].name, 'French');
}
let notSpokenInAnyCountry = languages.filtered('@links.@count == 0'); // no incoming links over any relationships to the object
TestCase.assertEqual(notSpokenInAnyCountry.length, 1);
TestCase.assertEqual(notSpokenInAnyCountry[0].name, 'Latin');
let notSpokenMethod2 = languages.filtered('@links.Country.languages.@count == 0'); // links of a specific relationship are 0
TestCase.assertEqual(notSpokenMethod2.length, 1);
TestCase.assertEqual(notSpokenMethod2[0].name, 'Latin');
},
testMethod: function() {
var realm = new Realm({schema: [schemas.PersonObject]});
var person;
realm.write(function () {
person = realm.create('PersonObject', { name: 'Person 1', age: 50 });
});
TestCase.assertThrows(() => person.linkingObjects('NoSuchSchema', 'noSuchProperty'),
"Could not find schema for type 'NoSuchSchema'");
TestCase.assertThrows(() => person.linkingObjects('PersonObject', 'noSuchProperty'),
"Type 'PersonObject' does not contain property 'noSuchProperty'");
TestCase.assertThrows(() => person.linkingObjects('PersonObject', 'name'),
"'PersonObject.name' is not a relationship to 'PersonObject'");
var olivier, oliviersParents;
realm.write(function() {
olivier = realm.create('PersonObject', {name: 'Olivier', age: 0});
realm.create('PersonObject', {name: 'Christine', age: 25, children: [olivier]});
oliviersParents = olivier.linkingObjects('PersonObject', 'children');
TestCase.assertArraysEqual(names(oliviersParents), ['Christine']);
});
TestCase.assertArraysEqual(names(oliviersParents), ['Christine']);
var jp;
realm.write(function() {
jp = realm.create('PersonObject', {name: 'JP', age: 28, children: [olivier]});
TestCase.assertArraysEqual(names(oliviersParents), ['Christine', 'JP']);
});
realm.write(function() {
realm.delete(olivier);
TestCase.assertEqual(oliviersParents.length, 0);
});
},
};