Properly set default port

lib/dialects/postgres/connector-manager.js

@@ -13,7 +13,6 @@ module.exports = (function() {
     this.pooling        = (!!this.config.pool && (this.config.pool.maxConnections > 0))
     this.pg             = this.config.native ? require(pgModule).native : require(pgModule)
     this.poolIdentifier = null
-
     // Better support for BigInts
     // https://github.com/brianc/node-postgres/issues/166#issuecomment-9514935
     this.pg.types.setTypeParser(20, String);

lib/sequelize.js

@@ -20,7 +20,7 @@ module.exports = (function() {
       @param {String} [options.dialect='mysql'] The dialect of the relational database.
       @param {String} [options.dialectModulePath=null] If specified, load the dialect library from this path.
       @param {String} [options.host='localhost'] The host of the relational database.
-      @param {Integer} [options.port=3306] The port of the relational database.
+      @param {Integer} [options.port=] The port of the relational database.
       @param {String} [options.protocol='tcp'] The protocol of the relational database.
       @param {Object} [options.define={}] Options, which shall be default for every model definition.
       @param {Object} [options.query={}] I have absolutely no idea.
@@ -75,7 +75,6 @@ module.exports = (function() {
       dialect: 'mysql',
       dialectModulePath: null,
       host: 'localhost',
-      port: 3306,
       protocol: 'tcp',
       define: {},
       query: {},

test/configuration.test.js

@@ -70,13 +70,23 @@ describe(Support.getTestDialectTeaser("Configuration"), function() {
       done()
     })
 
-    it('should use the default port when no other is specified', function(done) {
-      var sequelize = new Sequelize('mysql://example.com/dbname')
-      var config = sequelize.config
+    it('should use the default port when no other is specified', function() {
+      var sequelize = new Sequelize('dbname', 'root', 'pass', {
+          dialect: dialect
+        })
+        , config = sequelize.connectorManager.config
+        , port
+
+      if (Support.dialectIsMySQL()) {
+        port = 3306
+      } else if (dialect === "postgres" || dialect === "postgres-native") {
+        port = 5432
+      } else {
+        // sqlite has no concept of ports when connecting
+        return
+      }
 
-      // The default port should be set
-      expect(config.port).to.equal(3306)
-      done()
+      expect(config.port).to.equal(port)
     })
   })