fix mysql driver url parsing

Used 'parsed_url.hostname' instead of 'parsed_url.netloc' to get hostname.

Changed setup-mysql-env.sh script to start 'mysqld' with networking.

Closes-Bug: 1426351
Change-Id: Ifcf68b10ef5f93864d33d3a1719b9be321db6e5c

setup-mysql-env.sh

@@ -17,6 +17,14 @@ wait_for_line () {
     cat "$2" >/dev/null &
 }
 
+get_random_port () {
+    PORT=13306
+    while netstat -atwn | grep "^.*:${PORT}.*:\*\s*LISTEN\s*$"
+    do
+        PORT=$(( ${PORT} + 1 ))
+    done
+}
+
 trap "clean_exit" EXIT
 
 # On systems like Fedora here's where mysqld can be found
@@ -25,11 +33,17 @@ export PATH=$PATH:/usr/libexec
 # Start MySQL process for tests
 MYSQL_DATA=`mktemp -d /tmp/tooz-mysql-XXXXX`
 mkfifo ${MYSQL_DATA}/out
-mysqld --datadir=${MYSQL_DATA} --pid-file=${MYSQL_DATA}/mysql.pid --socket=${MYSQL_DATA}/mysql.socket --skip-networking --skip-grant-tables &> ${MYSQL_DATA}/out &
+# Initialize MySQL Data Directory
+mysql_install_db --user=${USER} --ldata=${MYSQL_DATA}
+# Get random unused port for mysql
+get_random_port
+# Start mysqld with networking (i.e. - allow connection with TCP/IP)
+mysqld --no-defaults --datadir=${MYSQL_DATA} --port=${PORT} --pid-file=${MYSQL_DATA}/mysql.pid --socket=${MYSQL_DATA}/mysql.socket --slow-query-log-file=${MYSQL_DATA}/mysql-slow.log --skip-grant-tables &> ${MYSQL_DATA}/out &
 # Wait for MySQL to start listening to connections
 wait_for_line "mysqld: ready for connections." ${MYSQL_DATA}/out
-mysql -S ${MYSQL_DATA}/mysql.socket -e 'CREATE DATABASE test;'
-export TOOZ_TEST_MYSQL_URL="mysql://root@localhost/test?unix_socket=${MYSQL_DATA}/mysql.socket"
+# The default root password is blank
+mysql --host=localhost -S ${MYSQL_DATA}/mysql.socket -e 'CREATE DATABASE IF NOT EXISTS test;'
+export TOOZ_TEST_MYSQL_URL="mysql://root@localhost:${PORT}/test"
 
 # Yield execution to venv command
 $*

tooz/drivers/mysql.py

@@ -108,7 +108,7 @@ class MySQLDriver(coordination.CoordinationDriver):
 
     @staticmethod
     def get_connection(parsed_url, options):
-        host = parsed_url.netloc
+        host = parsed_url.hostname
         port = parsed_url.port
         dbname = parsed_url.path[1:]
         username = parsed_url.username
@@ -128,5 +128,5 @@ class MySQLDriver(coordination.CoordinationDriver):
                                        user=username,
                                        passwd=password,
                                        database=dbname)
-        except pymysql.err.OperationalError as e:
+        except (pymysql.err.OperationalError, pymysql.err.InternalError) as e:
             raise coordination.ToozConnectionError(utils.exception_message(e))

tooz/tests/test_mysql.py

@@ -0,0 +1,72 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2015 OpenStack Foundation
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+import os
+import uuid
+
+import testtools
+from testtools import testcase
+
+from tooz import coordination
+from tooz import utils
+
+
+@testtools.skipUnless(os.getenv("TOOZ_TEST_MYSQL_URL"),
+                      "TOOZ_TEST_MYSQL_URL env variable is not set")
+class TestMYSQLDriver(testcase.TestCase):
+
+    MYSQL_URL = os.getenv("TOOZ_TEST_MYSQL_URL")
+
+    def _create_coordinator(self, url):
+
+        def _safe_stop(coord):
+            try:
+                coord.stop()
+            except coordination.ToozError as e:
+                message = utils.exception_message(e)
+                if (message != 'Can not stop a driver which has not'
+                               ' been started'):
+                    raise
+
+        coord = coordination.get_coordinator(url,
+                                             str(uuid.uuid4()).encode('ascii'))
+        self.addCleanup(_safe_stop, coord)
+        return coord
+
+    def test_connect_failure_invalid_hostname_provided(self):
+        url = self.MYSQL_URL.replace('localhost', 'invalidhost')
+        c = self._create_coordinator(url)
+        self.assertRaises(coordination.ToozConnectionError, c.start)
+
+    def test_connect_failure_invalid_port_provided(self):
+        url = self.MYSQL_URL.replace('localhost:13', 'localhost:54')
+        c = self._create_coordinator(url)
+        self.assertRaises(coordination.ToozConnectionError, c.start)
+
+    def test_connect_failure_invalid_hostname_and_port_provided(self):
+        url = self.MYSQL_URL.replace('localhost:13', 'invalidhost:54')
+        c = self._create_coordinator(url)
+        self.assertRaises(coordination.ToozConnectionError, c.start)
+
+    def test_connect_failure_invalid_db_name_provided(self):
+        url = self.MYSQL_URL.replace('test', 'invalid')
+        c = self._create_coordinator(url)
+        self.assertRaises(coordination.ToozConnectionError, c.start)
+
+    def test_connect_success(self):
+        c = self._create_coordinator(self.MYSQL_URL)
+        c.start()