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(done) {
var User = this.sequelize.define('User', { username: DataTypes.STRING })
, spy = sinon.spy();
User.sync({force: true}).on('success', function() {
User.create({username: 'user1'}).on('success', function() {
User.count().on('success', function(count) {
expect(count).to.equal(1);
spy();
setTimeout(function() {
User.count().on('success', function(count) {
expect(count).to.equal(1);
spy();
if (spy.calledTwice) {
done();
}
});
}, 1000);
});
});
});
});
it('accepts new queries after shutting down a connection', function(done) {
// Create a sequelize instance with pooling disabled
var sequelize = Support.createSequelizeInstance({ pool: false });
var User = sequelize.define('User', { username: DataTypes.STRING });
User.sync({force: true}).on('success', function() {
User.create({username: 'user1'}).on('success', function() {
// After 100 ms the DB connection will be disconnected for inactivity
setTimeout(function() {
// This query will be queued just after the `client.end` is executed and before its callback is called
sequelize.query('SELECT COUNT(*) AS count FROM Users').on('success', function(count) {
expect(count[0].count).to.equal(1);
done();
}).error(function(error) {
expect(error).to.not.exist;
});
}, 100);
});
});
});
// 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);
});
});
}
});
}