connector-manager.test.js
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'use strict';
/* jshint -W030 */
const chai = require('chai');
const expect = chai.expect;
const Support = require(__dirname + '/../../support');
const dialect = Support.getTestDialect();
const sinon = require('sinon');
const DataTypes = require(__dirname + '/../../../../lib/data-types');
if (dialect === 'mysql') {
describe('[MYSQL Specific] Connection Manager', function () {
it('works correctly after being idle', function () {
const User = this.sequelize.define('User', { username: DataTypes.STRING });
const spy = sinon.spy();
return User
.sync({force: true})
.then(() => User.create({username: 'user1'}))
.then(() => User.count())
.then(count => {
expect(count).to.equal(1);
spy();
return this.sequelize.Promise.delay(1000);
})
.then(() => User.count())
.then(count => {
expect(count).to.equal(1);
spy();
if (!spy.calledTwice) {
throw new Error('Spy was not called twice');
}
});
});
it('accepts new queries after shutting down a connection', () => {
// Create a sequelize instance with fast disconnecting connection
const sequelize = Support.createSequelizeInstance({ pool: { idle: 50, max: 1 }});
const User = sequelize.define('User', { username: DataTypes.STRING });
return User
.sync({force: true})
.then(() => User.create({username: 'user1'}))
.then(() => sequelize.Promise.delay(100))
.then(() => {
// This query will be queued just after the `client.end` is executed and before its callback is called
return sequelize.query('SELECT COUNT(*) AS count FROM Users', { type: sequelize.QueryTypes.SELECT });
})
.then((count) => {
expect(count[0].count).to.equal(1);
});
});
it('should maintain connection', () => {
const sequelize = Support.createSequelizeInstance({ pool: {min: 1, max: 1, handleDisconnects: true, idle: 5000 }});
const cm = sequelize.connectionManager;
let conn;
return sequelize.sync()
.then(() => cm.getConnection())
.then(connection => {
// Save current connection
conn = connection;
return cm.releaseConnection(conn);
})
.then(() => {
// Get next available connection
return cm.getConnection();
})
.then((connection) => {
// Old threadId should be different from current new one
expect(conn.threadId).to.be.equal(connection.threadId);
expect(cm.validate(conn)).to.be.ok;
return cm.releaseConnection(connection);
});
});
it('should work with handleDisconnects', () => {
const sequelize = Support.createSequelizeInstance({pool: {min: 1, max: 1, handleDisconnects: true, idle: 5000}});
const cm = sequelize.connectionManager;
let conn;
return sequelize
.sync()
.then(() => cm.getConnection())
.then((connection) => {
// Save current connection
conn = connection;
// simulate a unexpected end
connection.close();
})
.then(() => cm.releaseConnection(conn))
.then(() => {
// Get next available connection
return cm.getConnection();
})
.then((connection) => {
// Old threadId should be different from current new one
expect(conn.threadId).to.not.be.equal(connection.threadId);
expect(cm.validate(conn)).to.not.be.ok;
return cm.releaseConnection(connection);
});
});
});
}