decrement.test.js
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'use strict';
const chai = require('chai'),
expect = chai.expect,
Support = require('../support'),
DataTypes = require('../../../lib/data-types'),
sinon = require('sinon'),
current = Support.sequelize;
describe(Support.getTestDialectTeaser('Instance'), () => {
before(function() {
this.clock = sinon.useFakeTimers();
});
afterEach(function() {
this.clock.reset();
});
after(function() {
this.clock.restore();
});
beforeEach(async function() {
this.User = this.sequelize.define('User', {
username: { type: DataTypes.STRING },
uuidv1: { type: DataTypes.UUID, defaultValue: DataTypes.UUIDV1 },
uuidv4: { type: DataTypes.UUID, defaultValue: DataTypes.UUIDV4 },
touchedAt: { type: DataTypes.DATE, defaultValue: DataTypes.NOW },
aNumber: { type: DataTypes.INTEGER },
bNumber: { type: DataTypes.INTEGER },
aDate: { type: DataTypes.DATE },
validateTest: {
type: DataTypes.INTEGER,
allowNull: true,
validate: { isInt: true }
},
validateCustom: {
type: DataTypes.STRING,
allowNull: true,
validate: { len: { msg: 'Length failed.', args: [1, 20] } }
},
dateAllowNullTrue: {
type: DataTypes.DATE,
allowNull: true
},
isSuperUser: {
type: DataTypes.BOOLEAN,
defaultValue: false
}
});
await this.User.sync({ force: true });
});
describe('decrement', () => {
beforeEach(async function() {
await this.User.create({ id: 1, aNumber: 0, bNumber: 0 });
});
if (current.dialect.supports.transactions) {
it('supports transactions', async function() {
const sequelize = await Support.prepareTransactionTest(this.sequelize);
const User = sequelize.define('User', { number: Support.Sequelize.INTEGER });
await User.sync({ force: true });
const user = await User.create({ number: 3 });
const t = await sequelize.transaction();
await user.decrement('number', { by: 2, transaction: t });
const users1 = await User.findAll();
const users2 = await User.findAll({ transaction: t });
expect(users1[0].number).to.equal(3);
expect(users2[0].number).to.equal(1);
await t.rollback();
});
}
if (current.dialect.supports.returnValues.returning) {
it('supports returning', async function() {
const user1 = await this.User.findByPk(1);
await user1.decrement('aNumber', { by: 2 });
expect(user1.aNumber).to.be.equal(-2);
const user3 = await user1.decrement('bNumber', { by: 2, returning: false });
expect(user3.bNumber).to.be.equal(0);
});
}
it('with array', async function() {
const user1 = await this.User.findByPk(1);
await user1.decrement(['aNumber'], { by: 2 });
const user3 = await this.User.findByPk(1);
expect(user3.aNumber).to.be.equal(-2);
});
it('with single field', async function() {
const user1 = await this.User.findByPk(1);
await user1.decrement('aNumber', { by: 2 });
const user3 = await this.User.findByPk(1);
expect(user3.aNumber).to.be.equal(-2);
});
it('with single field and no value', async function() {
const user1 = await this.User.findByPk(1);
await user1.decrement('aNumber');
const user2 = await this.User.findByPk(1);
expect(user2.aNumber).to.be.equal(-1);
});
it('should still work right with other concurrent updates', async function() {
const user1 = await this.User.findByPk(1);
// Select the user again (simulating a concurrent query)
const user2 = await this.User.findByPk(1);
await user2.update({
aNumber: user2.aNumber + 1
});
await user1.decrement(['aNumber'], { by: 2 });
const user5 = await this.User.findByPk(1);
expect(user5.aNumber).to.be.equal(-1);
});
it('should still work right with other concurrent increments', async function() {
const user1 = await this.User.findByPk(1);
await Promise.all([
user1.decrement(['aNumber'], { by: 2 }),
user1.decrement(['aNumber'], { by: 2 }),
user1.decrement(['aNumber'], { by: 2 })
]);
const user2 = await this.User.findByPk(1);
expect(user2.aNumber).to.equal(-6);
});
it('with key value pair', async function() {
const user1 = await this.User.findByPk(1);
await user1.decrement({ 'aNumber': 1, 'bNumber': 2 });
const user3 = await this.User.findByPk(1);
expect(user3.aNumber).to.be.equal(-1);
expect(user3.bNumber).to.be.equal(-2);
});
it('with negative value', async function() {
const user1 = await this.User.findByPk(1);
await Promise.all([
user1.decrement('aNumber', { by: -2 }),
user1.decrement(['aNumber', 'bNumber'], { by: -2 }),
user1.decrement({ 'aNumber': -1, 'bNumber': -2 })
]);
const user3 = await this.User.findByPk(1);
expect(user3.aNumber).to.be.equal(+5);
expect(user3.bNumber).to.be.equal(+4);
});
it('with timestamps set to true', async function() {
const User = this.sequelize.define('IncrementUser', {
aNumber: DataTypes.INTEGER
}, { timestamps: true });
await User.sync({ force: true });
const user = await User.create({ aNumber: 1 });
const oldDate = user.updatedAt;
this.clock.tick(1000);
await user.decrement('aNumber', { by: 1 });
await expect(User.findByPk(1)).to.eventually.have.property('updatedAt').afterTime(oldDate);
});
it('with timestamps set to true and options.silent set to true', async function() {
const User = this.sequelize.define('IncrementUser', {
aNumber: DataTypes.INTEGER
}, { timestamps: true });
await User.sync({ force: true });
const user = await User.create({ aNumber: 1 });
const oldDate = user.updatedAt;
this.clock.tick(1000);
await user.decrement('aNumber', { by: 1, silent: true });
await expect(User.findByPk(1)).to.eventually.have.property('updatedAt').equalTime(oldDate);
});
});
});