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

319 lines
8.6 KiB
JavaScript

// 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();
});
});
});
});
});
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 and destroyAll', function () {
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}
});
Station.scope('ordered', {order: 'order'});
Station.scope('active', {where: { active: true}});
Station.scope('inactive', {where: { active: false}});
});
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 }, 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 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 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();
});
});
});