connector-manager.test.js
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'use strict';
var chai = require('chai')
, expect = chai.expect
, Support = require(__dirname + '/../../support')
, sinon = require('sinon')
, DataTypes = require(__dirname + '/../../../../lib/data-types');
chai.config.includeStack = true;
if (Support.dialectIsMySQL()) {
describe('[MYSQL Specific] Connector Manager', function() {
it('works correctly after being idle', function() {
var User = this.sequelize.define('User', { username: DataTypes.STRING })
, spy = sinon.spy();
return User.sync({force: true}).then(function() {
return User.create({username: 'user1'}).then(function() {
return User.count().then(function(count) {
expect(count).to.equal(1);
spy();
return this.sequelize.Promise.delay(1000).then(function() {
return User.count().then(function(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', function() {
// Create a sequelize instance with pooling disabled
var sequelize = Support.createSequelizeInstance({ pool: false });
var User = sequelize.define('User', { username: DataTypes.STRING });
return User.sync({force: true}).then(function() {
return User.create({username: 'user1'});
}).then(function() {
// After 100 ms the DB connection will be disconnected for inactivity
return sequelize.Promise.delay(100);
}).then(function () {
// 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(function(count) {
expect(count[0].count).to.equal(1);
});
});
// This should run only on direct mysql
if (Support.dialectIsMySQL(true)) {
it('should maintain connection', function() {
var sequelize = Support.createSequelizeInstance({pool: {min: 1, max: 1, handleDisconnects: true, idle: 5000}})
, cm = sequelize.connectionManager
, conn;
return sequelize.sync()
.then(function() {
return cm.getConnection();
})
.then(function(connection) {
// Save current connection
conn = connection;
})
.then(function() {
return cm.releaseConnection(conn);
})
.then(function() {
// Get next available connection
return cm.getConnection();
})
.then(function(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', function() {
var sequelize = Support.createSequelizeInstance({pool: {min: 1, max: 1, handleDisconnects: true, idle: 5000}})
, cm = sequelize.connectionManager
, conn;
return sequelize.sync()
.then(function() {
return cm.getConnection();
})
.then(function(connection) {
// Save current connection
conn = connection;
// simulate a unexpected end
connection._protocol.end();
})
.then(function() {
return cm.releaseConnection(conn);
})
.then(function() {
// Get next available connection
return cm.getConnection();
})
.then(function(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);
});
});
}
});
}