Support for non-friendly chars in url username and password (#858)

* Support for non-friendly chars in url username and password
- Added auth option to Connection class
- Updated pool.addConnection

* Updated test

test/unit/connection-pool.test.js

@@ -61,8 +61,23 @@ test('API', t => {
     t.deepEqual(pool._auth, { username: 'foo', password: 'bar' })
 
     pool.addConnection('http://localhost:9201')
-    t.strictEqual(pool.connections.get('http://localhost:9201/').url.username, 'foo')
-    t.strictEqual(pool.connections.get('http://localhost:9201/').url.password, 'bar')
+    const conn = pool.connections.get('http://localhost:9201/')
+    t.strictEqual(conn.url.username, 'foo')
+    t.strictEqual(conn.url.password, 'bar')
+    t.strictEqual(conn.auth.username, 'foo')
+    t.strictEqual(conn.auth.password, 'bar')
+    t.end()
+  })
+
+  t.test('addConnection should handle not-friendly url parameters for user and password', t => {
+    const pool = new ConnectionPool({ Connection })
+    const href = 'http://us"er:p@assword@localhost:9200/'
+    pool.addConnection(href)
+    const conn = pool.getConnection()
+    t.strictEqual(conn.url.username, 'us%22er')
+    t.strictEqual(conn.url.password, 'p%40assword')
+    t.strictEqual(conn.auth.username, 'us"er')
+    t.strictEqual(conn.auth.password, 'p@assword')
     t.end()
   })