loopback-datasource-juggler/test/scope.test.js

447 lines
12 KiB
JavaScript

// Copyright IBM Corp. 2013,2016. All Rights Reserved.
// Node module: loopback-datasource-juggler
// This file is licensed under the MIT License.
// License text available at https://opensource.org/licenses/MIT
// This test written in mocha+should.js
var should = require('./init.js');
var db, Railway, Station;
describe('scope', function() {
before(function() {
db = getSchema();
Railway = db.define('Railway', {
URID: { type: String, index: true },
}, {
scopes: {
highSpeed: {
where: {
highSpeed: true,
},
},
},
});
Station = db.define('Station', {
USID: { type: String, index: true },
capacity: { type: Number, index: true },
thoughput: { type: Number, index: true },
isActive: { type: Boolean, index: true },
isUndeground: { type: Boolean, index: true },
});
});
beforeEach(function(done) {
Railway.destroyAll(function() {
Station.destroyAll(done);
});
});
it('should define scope using options.scopes', function() {
Railway.scopes.should.have.property('highSpeed');
Railway.highSpeed.should.be.function;
});
it('should define scope with query', function(done) {
Station.scope('active', { where: { isActive: true }});
Station.scopes.should.have.property('active');
Station.active.create(function(err, station) {
should.not.exist(err);
should.exist(station);
should.exist(station.isActive);
station.isActive.should.be.true;
done();
});
});
it('should allow scope chaining', function(done) {
Station.scope('active', { where: { isActive: true }});
Station.scope('subway', { where: { isUndeground: true }});
Station.active.subway.create(function(err, station) {
should.not.exist(err);
should.exist(station);
station.isActive.should.be.true;
station.isUndeground.should.be.true;
done();
});
});
it('should query all', function(done) {
Station.scope('active', { where: { isActive: true }});
Station.scope('inactive', { where: { isActive: false }});
Station.scope('ground', { where: { isUndeground: true }});
Station.active.ground.create(function() {
Station.inactive.ground.create(function() {
Station.ground.inactive(function(err, ss) {
ss.should.have.lengthOf(1);
done();
});
});
});
});
it('should not cache any results', function(done) {
Station.scope('active', { where: { isActive: true }});
Station.active.create(function(err, s) {
if (err) return done(err);
s.isActive.should.be.true;
Station.active(function(err, ss) {
if (err) return done(err);
ss.should.have.lengthOf(1);
ss[0].id.should.eql(s.id);
s.updateAttribute('isActive', false, function(err, s) {
if (err) return done(err);
s.isActive.should.be.false;
Station.active(function(err, ss) {
if (err) return done(err);
ss.should.have.lengthOf(0);
done();
});
});
});
});
});
});
describe('scope - order', function() {
before(function() {
db = getSchema();
Station = db.define('Station', {
name: { type: String, index: true },
order: { type: Number, index: true },
});
Station.scope('reverse', { order: 'order DESC' });
});
beforeEach(function(done) {
Station.destroyAll(done);
});
beforeEach(function(done) {
Station.create({ name: 'a', order: 1 }, done);
});
beforeEach(function(done) {
Station.create({ name: 'b', order: 2 }, done);
});
beforeEach(function(done) {
Station.create({ name: 'c', order: 3 }, done);
});
it('should define scope with default order', function(done) {
Station.reverse(function(err, stations) {
stations[0].name.should.equal('c');
stations[0].order.should.equal(3);
stations[1].name.should.equal('b');
stations[1].order.should.equal(2);
stations[2].name.should.equal('a');
stations[2].order.should.equal(1);
done();
});
});
it('should override default scope order', function(done) {
Station.reverse({ order: 'order ASC' }, function(err, stations) {
stations[0].name.should.equal('a');
stations[0].order.should.equal(1);
stations[1].name.should.equal('b');
stations[1].order.should.equal(2);
stations[2].name.should.equal('c');
stations[2].order.should.equal(3);
done();
});
});
});
describe('scope - filtered count, updateAll and destroyAll', function() {
var stationA;
before(function() {
db = getSchema();
Station = db.define('Station', {
name: { type: String, index: true },
order: { type: Number, index: true },
active: { type: Boolean, index: true, default: true },
flagged: { type: Boolean, index: true, default: false },
});
Station.scope('ordered', { order: 'order' });
Station.scope('active', { where: { active: true }});
Station.scope('inactive', { where: { active: false }});
Station.scope('flagged', { where: { flagged: true }});
});
beforeEach(function(done) {
Station.destroyAll(done);
});
beforeEach(function(done) {
Station.create({ name: 'b', order: 2, active: false }, done);
});
beforeEach(function(done) {
Station.create({ name: 'a', order: 1 }, function(err, inst) {
stationA = inst;
done();
});
});
beforeEach(function(done) {
Station.create({ name: 'd', order: 4, active: false }, done);
});
beforeEach(function(done) {
Station.create({ name: 'c', order: 3 }, done);
});
it('should find all - verify', function(done) {
Station.ordered(function(err, stations) {
should.not.exist(err);
stations.should.have.length(4);
stations[0].name.should.equal('a');
stations[1].name.should.equal('b');
stations[2].name.should.equal('c');
stations[3].name.should.equal('d');
done();
});
});
it('should find one', function(done) {
Station.active.findOne(function(err, station) {
should.not.exist(err);
station.name.should.equal('a');
done();
});
});
it('should find one - with filter', function(done) {
Station.active.findOne({ where: { name: 'c' }}, function(err, station) {
should.not.exist(err);
station.name.should.equal('c');
done();
});
});
it('should find by id - match', function(done) {
Station.active.findById(stationA.id, function(err, station) {
should.not.exist(err);
station.name.should.equal('a');
done();
});
});
it('should find by id - no match', function(done) {
Station.inactive.findById(stationA.id, function(err, station) {
should.not.exist(err);
should.not.exist(station);
done();
});
});
it('should count all in scope - active', function(done) {
Station.active.count(function(err, count) {
should.not.exist(err);
count.should.equal(2);
done();
});
});
it('should count all in scope - inactive', function(done) {
Station.inactive.count(function(err, count) {
should.not.exist(err);
count.should.equal(2);
done();
});
});
it('should count filtered - active', function(done) {
Station.active.count({ order: { gt: 1 }}, function(err, count) {
should.not.exist(err);
count.should.equal(1);
done();
});
});
it('should count filtered - inactive', function(done) {
Station.inactive.count({ order: 2 }, function(err, count) {
should.not.exist(err);
count.should.equal(1);
done();
});
});
it('should allow updateAll', function(done) {
Station.inactive.updateAll({ flagged: true }, function(err, result) {
should.not.exist(err);
result.count.should.equal(2);
verify();
});
var verify = function() {
Station.flagged.count(function(err, count) {
should.not.exist(err);
count.should.equal(2);
done();
});
};
});
it('should allow filtered updateAll', function(done) {
Station.ordered.updateAll({ active: true }, { flagged: true }, function(err, result) {
should.not.exist(err);
result.count.should.equal(2);
verify();
});
var verify = function() {
Station.flagged.count(function(err, count) {
should.not.exist(err);
count.should.equal(2);
done();
});
};
});
it('should allow filtered destroyAll', function(done) {
Station.ordered.destroyAll({ active: false }, function(err) {
should.not.exist(err);
verify();
});
var verify = function() {
Station.ordered.count(function(err, count) {
should.not.exist(err);
count.should.equal(2);
Station.inactive.count(function(err, count) {
should.not.exist(err);
count.should.equal(0);
done();
});
});
};
});
});
describe('scope - dynamic target class', function() {
var Collection, Media, Image, Video;
before(function() {
db = getSchema();
Image = db.define('Image', { name: String });
Video = db.define('Video', { name: String });
Collection = db.define('Collection', { name: String, modelName: String });
Collection.scope('items', function() {
return {}; // could return a scope based on `this` (receiver)
}, null, {}, { isStatic: false, modelTo: function(receiver) {
return db.models[receiver.modelName];
} });
});
beforeEach(function(done) {
Collection.destroyAll(function() {
Image.destroyAll(function() {
Video.destroyAll(done);
});
});
});
beforeEach(function(done) {
Collection.create({ name: 'Images', modelName: 'Image' }, done);
});
beforeEach(function(done) {
Collection.create({ name: 'Videos', modelName: 'Video' }, done);
});
beforeEach(function(done) {
Collection.create({ name: 'Things', modelName: 'Unknown' }, done);
});
beforeEach(function(done) {
Image.create({ name: 'Image A' }, done);
});
beforeEach(function(done) {
Video.create({ name: 'Video A' }, done);
});
it('should deduce modelTo at runtime - Image', function(done) {
Collection.findOne({ where: { modelName: 'Image' }}, function(err, coll) {
should.not.exist(err);
coll.name.should.equal('Images');
coll.items(function(err, items) {
should.not.exist(err);
items.length.should.equal(1);
items[0].name.should.equal('Image A');
items[0].should.be.instanceof(Image);
done();
});
});
});
it('should deduce modelTo at runtime - Video', function(done) {
Collection.findOne({ where: { modelName: 'Video' }}, function(err, coll) {
should.not.exist(err);
coll.name.should.equal('Videos');
coll.items(function(err, items) {
should.not.exist(err);
items.length.should.equal(1);
items[0].name.should.equal('Video A');
items[0].should.be.instanceof(Video);
done();
});
});
});
it('should throw if modelTo is invalid', function(done) {
Collection.findOne({ where: { name: 'Things' }}, function(err, coll) {
should.not.exist(err);
coll.modelName.should.equal('Unknown');
(function() {
coll.items(function(err, items) {});
}).should.throw();
done();
});
});
});
describe('scope - dynamic function', function() {
var Item, seed = 0;
before(function() {
db = getSchema();
Item = db.define('Item', { title: Number, creator: Number });
Item.scope('dynamicQuery', function() {
seed++;
return { where: { creator: seed }};
});
});
beforeEach(function(done) {
Item.create({ title: 1, creator: 1 }, function() {
Item.create({ title: 2, creator: 2 }, done);
});
});
it('should deduce item by runtime creator', function(done) {
Item.dynamicQuery.findOne(function(err, firstQuery) {
should.not.exist(err);
firstQuery.title.should.equal(1);
Item.dynamicQuery.findOne(function(err, secondQuery) {
should.not.exist(err);
secondQuery.title.should.equal(2);
done();
});
});
});
});