loopback-datasource-juggler/test/basic-querying.test.js

638 lines
18 KiB
JavaScript

// This test written in mocha+should.js
var should = require('./init.js');
var async = require('async');
var db, User;
describe('basic-querying', function () {
before(function (done) {
db = getSchema();
User = db.define('User', {
seq: {type: Number, index: true},
name: {type: String, index: true, sort: true},
email: {type: String, index: true},
birthday: {type: Date, index: true},
role: {type: String, index: true},
order: {type: Number, index: true, sort: true},
vip: {type: Boolean}
});
db.automigrate(done);
});
describe('ping', function () {
it('should be able to test connections', function (done) {
db.ping(function (err) {
should.not.exist(err);
done();
});
});
});
describe('findById', function () {
before(function (done) {
User.destroyAll(done);
});
it('should query by id: not found', function (done) {
User.findById(1, function (err, u) {
should.not.exist(u);
should.not.exist(err);
done();
});
});
it('should query by id: found', function (done) {
User.create(function (err, u) {
should.not.exist(err);
should.exist(u.id);
User.findById(u.id, function (err, u) {
should.exist(u);
should.not.exist(err);
u.should.be.an.instanceOf(User);
done();
});
});
});
});
describe('findByIds', function () {
var createdUsers;
before(function(done) {
var people = [
{ name: 'a', vip: true },
{ name: 'b' },
{ name: 'c' },
{ name: 'd', vip: true },
{ name: 'e' },
{ name: 'f' }
];
db.automigrate(['User'], function(err) {
User.create(people, function(err, users) {
should.not.exist(err);
// Users might be created in parallel and the generated ids can be
// out of sequence
createdUsers = users;
done();
});
});
});
it('should query by ids', function(done) {
User.findByIds(
[createdUsers[2].id, createdUsers[1].id, createdUsers[0].id],
function(err, users) {
should.exist(users);
should.not.exist(err);
var names = users.map(function(u) {
return u.name;
});
names.should.eql(
[createdUsers[2].name, createdUsers[1].name, createdUsers[0].name]);
done();
});
});
it('should query by ids and condition', function(done) {
User.findByIds([
createdUsers[0].id,
createdUsers[1].id,
createdUsers[2].id,
createdUsers[3].id],
{ where: { vip: true } }, function(err, users) {
should.exist(users);
should.not.exist(err);
var names = users.map(function(u) {
return u.name;
});
names.should.eql(createdUsers.slice(0, 4).
filter(function(u) {
return u.vip;
}).map(function(u) {
return u.name;
}));
done();
});
});
});
describe('find', function () {
before(seed);
it('should query collection', function (done) {
User.find(function (err, users) {
should.exists(users);
should.not.exists(err);
users.should.have.lengthOf(6);
done();
});
});
it('should query limited collection', function (done) {
User.find({limit: 3}, function (err, users) {
should.exists(users);
should.not.exists(err);
users.should.have.lengthOf(3);
done();
});
});
it('should query collection with skip & limit', function (done) {
User.find({skip: 1, limit: 4, order: 'seq'}, function (err, users) {
should.exists(users);
should.not.exists(err);
users[0].seq.should.be.eql(1);
users.should.have.lengthOf(4);
done();
});
});
it('should query collection with offset & limit', function (done) {
User.find({offset: 2, limit: 3, order: 'seq'}, function (err, users) {
should.exists(users);
should.not.exists(err);
users[0].seq.should.be.eql(2);
users.should.have.lengthOf(3);
done();
});
});
it('should query filtered collection', function (done) {
User.find({where: {role: 'lead'}}, function (err, users) {
should.exists(users);
should.not.exists(err);
users.should.have.lengthOf(2);
done();
});
});
it('should query collection sorted by numeric field', function (done) {
User.find({order: 'order'}, function (err, users) {
should.exists(users);
should.not.exists(err);
users.forEach(function (u, i) {
u.order.should.eql(i + 1);
});
done();
});
});
it('should query collection desc sorted by numeric field', function (done) {
User.find({order: 'order DESC'}, function (err, users) {
should.exists(users);
should.not.exists(err);
users.forEach(function (u, i) {
u.order.should.eql(users.length - i);
});
done();
});
});
it('should query collection sorted by string field', function (done) {
User.find({order: 'name'}, function (err, users) {
should.exists(users);
should.not.exists(err);
users.shift().name.should.equal('George Harrison');
users.shift().name.should.equal('John Lennon');
users.pop().name.should.equal('Stuart Sutcliffe');
done();
});
});
it('should query collection desc sorted by string field', function (done) {
User.find({order: 'name DESC'}, function (err, users) {
should.exists(users);
should.not.exists(err);
users.pop().name.should.equal('George Harrison');
users.pop().name.should.equal('John Lennon');
users.shift().name.should.equal('Stuart Sutcliffe');
done();
});
});
it('should support "and" operator that is satisfied', function (done) {
User.find({where: {and: [
{name: 'John Lennon'},
{role: 'lead'}
]}}, function (err, users) {
should.not.exist(err);
users.should.have.property('length', 1);
done();
});
});
it('should support "and" operator that is not satisfied', function (done) {
User.find({where: {and: [
{name: 'John Lennon'},
{role: 'member'}
]}}, function (err, users) {
should.not.exist(err);
users.should.have.property('length', 0);
done();
});
});
it('should support "or" that is satisfied', function (done) {
User.find({where: {or: [
{name: 'John Lennon'},
{role: 'lead'}
]}}, function (err, users) {
should.not.exist(err);
users.should.have.property('length', 2);
done();
});
});
it('should support "or" operator that is not satisfied', function (done) {
User.find({where: {or: [
{name: 'XYZ'},
{role: 'Hello1'}
]}}, function (err, users) {
should.not.exist(err);
users.should.have.property('length', 0);
done();
});
});
it('should support date "gte" that is satisfied', function (done) {
User.find({order: 'seq', where: { birthday: { "gte": new Date('1980-12-08') }
}}, function (err, users) {
should.not.exist(err);
users.should.have.property('length', 1);
users[0].name.should.equal('John Lennon');
done();
});
});
it('should support date "gt" that is not satisfied', function (done) {
User.find({order: 'seq', where: { birthday: { "gt": new Date('1980-12-08') }
}}, function (err, users) {
should.not.exist(err);
users.should.have.property('length', 0);
done();
});
});
it('should support date "gt" that is satisfied', function (done) {
User.find({order: 'seq', where: { birthday: { "gt": new Date('1980-12-07') }
}}, function (err, users) {
should.not.exist(err);
users.should.have.property('length', 1);
users[0].name.should.equal('John Lennon');
done();
});
});
it('should support date "lt" that is satisfied', function (done) {
User.find({order: 'seq', where: { birthday: { "lt": new Date('1980-12-07') }
}}, function (err, users) {
should.not.exist(err);
users.should.have.property('length', 1);
users[0].name.should.equal('Paul McCartney');
done();
});
});
it('should support number "gte" that is satisfied', function (done) {
User.find({order: 'seq', where: { order: { "gte": 3}
}}, function (err, users) {
should.not.exist(err);
users.should.have.property('length', 4);
users[0].name.should.equal('George Harrison');
done();
});
});
it('should support number "gt" that is not satisfied', function (done) {
User.find({order: 'seq', where: { order: { "gt": 6 }
}}, function (err, users) {
should.not.exist(err);
users.should.have.property('length', 0);
done();
});
});
it('should support number "gt" that is satisfied', function (done) {
User.find({order: 'seq', where: { order: { "gt": 5 }
}}, function (err, users) {
should.not.exist(err);
users.should.have.property('length', 1);
users[0].name.should.equal('Ringo Starr');
done();
});
});
it('should support number "lt" that is satisfied', function (done) {
User.find({order: 'seq', where: { order: { "lt": 2 }
}}, function (err, users) {
should.not.exist(err);
users.should.have.property('length', 1);
users[0].name.should.equal('Paul McCartney');
done();
});
});
it('should support number "gt" that is satisfied by null value', function (done) {
User.find({order: 'seq', where: { order: { "gt": null }
}}, function (err, users) {
should.not.exist(err);
users.should.have.property('length', 0);
done();
});
});
it('should support number "lt" that is not satisfied by null value', function (done) {
User.find({order: 'seq', where: { order: { "lt": null }
}}, function (err, users) {
should.not.exist(err);
users.should.have.property('length', 0);
done();
});
});
it('should support string "gte" that is satisfied by null value', function (done) {
User.find({order: 'seq', where: { name: { "gte": null}
}}, function (err, users) {
should.not.exist(err);
users.should.have.property('length', 0);
done();
});
});
it('should support string "gte" that is satisfied', function (done) {
User.find({order: 'seq', where: { name: { "gte": 'Paul McCartney'}
}}, function (err, users) {
should.not.exist(err);
users.should.have.property('length', 4);
users[0].name.should.equal('Paul McCartney');
done();
});
});
it('should support string "gt" that is not satisfied', function (done) {
User.find({order: 'seq', where: { name: { "gt": 'xyz' }
}}, function (err, users) {
should.not.exist(err);
users.should.have.property('length', 0);
done();
});
});
it('should support string "gt" that is satisfied', function (done) {
User.find({order: 'seq', where: { name: { "gt": 'Paul McCartney' }
}}, function (err, users) {
should.not.exist(err);
users.should.have.property('length', 3);
users[0].name.should.equal('Ringo Starr');
done();
});
});
it('should support string "lt" that is satisfied', function (done) {
User.find({order: 'seq', where: { name: { "lt": 'Paul McCartney' }
}}, function (err, users) {
should.not.exist(err);
users.should.have.property('length', 2);
users[0].name.should.equal('John Lennon');
done();
});
});
it('should support boolean "gte" that is satisfied', function (done) {
User.find({order: 'seq', where: { vip: { "gte": true}
}}, function (err, users) {
should.not.exist(err);
users.should.have.property('length', 3);
users[0].name.should.equal('John Lennon');
done();
});
});
it('should support boolean "gt" that is not satisfied', function (done) {
User.find({order: 'seq', where: { vip: { "gt": true }
}}, function (err, users) {
should.not.exist(err);
users.should.have.property('length', 0);
done();
});
});
it('should support boolean "gt" that is satisfied', function (done) {
User.find({order: 'seq', where: { vip: { "gt": false }
}}, function (err, users) {
should.not.exist(err);
users.should.have.property('length', 3);
users[0].name.should.equal('John Lennon');
done();
});
});
it('should support boolean "lt" that is satisfied', function (done) {
User.find({order: 'seq', where: { vip: { "lt": true }
}}, function (err, users) {
should.not.exist(err);
users.should.have.property('length', 2);
users[0].name.should.equal('George Harrison');
done();
});
});
it('should only include fields as specified', function (done) {
var remaining = 0;
function sample(fields) {
return {
expect: function (arr) {
remaining++;
User.find({fields: fields}, function (err, users) {
remaining--;
if (err) return done(err);
should.exists(users);
if (remaining === 0) {
done();
}
users.forEach(function (user) {
var obj = user.toObject();
Object.keys(obj)
.forEach(function (key) {
// if the obj has an unexpected value
if (obj[key] !== undefined && arr.indexOf(key) === -1) {
console.log('Given fields:', fields);
console.log('Got:', key, obj[key]);
console.log('Expected:', arr);
throw new Error('should not include data for key: ' + key);
}
});
});
});
}
}
}
sample({name: true}).expect(['name']);
sample({name: false}).expect(['id', 'seq', 'email', 'role', 'order', 'birthday', 'vip']);
sample({name: false, id: true}).expect(['id']);
sample({id: true}).expect(['id']);
sample('id').expect(['id']);
sample(['id']).expect(['id']);
sample(['email']).expect(['email']);
});
});
describe('count', function () {
before(seed);
it('should query total count', function (done) {
User.count(function (err, n) {
should.not.exist(err);
should.exist(n);
n.should.equal(6);
done();
});
});
it('should query filtered count', function (done) {
User.count({role: 'lead'}, function (err, n) {
should.not.exist(err);
should.exist(n);
n.should.equal(2);
done();
});
});
});
describe('findOne', function () {
before(seed);
it('should find first record (default sort by id)', function (done) {
User.all({order: 'id'}, function (err, users) {
User.findOne(function (e, u) {
should.not.exist(e);
should.exist(u);
u.id.toString().should.equal(users[0].id.toString());
done();
});
});
});
it('should find first record', function (done) {
User.findOne({order: 'order'}, function (e, u) {
should.not.exist(e);
should.exist(u);
u.order.should.equal(1);
u.name.should.equal('Paul McCartney');
done();
});
});
it('should find last record', function (done) {
User.findOne({order: 'order DESC'}, function (e, u) {
should.not.exist(e);
should.exist(u);
u.order.should.equal(6);
u.name.should.equal('Ringo Starr');
done();
});
});
it('should find last record in filtered set', function (done) {
User.findOne({
where: {role: 'lead'},
order: 'order DESC'
}, function (e, u) {
should.not.exist(e);
should.exist(u);
u.order.should.equal(2);
u.name.should.equal('John Lennon');
done();
});
});
it('should work even when find by id', function (done) {
User.findOne(function (e, u) {
User.findOne({where: {id: u.id}}, function (err, user) {
should.not.exist(err);
should.exist(user);
done();
});
});
});
});
describe('exists', function () {
before(seed);
it('should check whether record exist', function (done) {
User.findOne(function (e, u) {
User.exists(u.id, function (err, exists) {
should.not.exist(err);
should.exist(exists);
exists.should.be.ok;
done();
});
});
});
it('should check whether record not exist', function (done) {
User.destroyAll(function () {
User.exists(42, function (err, exists) {
should.not.exist(err);
exists.should.not.be.ok;
done();
});
});
});
});
});
function seed(done) {
var beatles = [
{
seq: 0,
name: 'John Lennon',
email: 'john@b3atl3s.co.uk',
role: 'lead',
birthday: new Date('1980-12-08'),
order: 2,
vip: true
},
{
seq: 1,
name: 'Paul McCartney',
email: 'paul@b3atl3s.co.uk',
role: 'lead',
birthday: new Date('1942-06-18'),
order: 1,
vip: true
},
{seq: 2, name: 'George Harrison', order: 5, vip: false},
{seq: 3, name: 'Ringo Starr', order: 6, vip: false},
{seq: 4, name: 'Pete Best', order: 4},
{seq: 5, name: 'Stuart Sutcliffe', order: 3, vip: true}
];
async.series([
User.destroyAll.bind(User),
function(cb) {
async.each(beatles, User.create.bind(User), cb);
}
], done);
}