diff --git a/.github/workflows/continuous-integration.yml b/.github/workflows/continuous-integration.yml
index c2acc1ac..68ad40d4 100644
--- a/.github/workflows/continuous-integration.yml
+++ b/.github/workflows/continuous-integration.yml
@@ -37,7 +37,7 @@ jobs:
           #- "8.3"
     services:
       mysql:
-        image: mysql:5.7-debian
+        image: mysql:5.7.42-debian
         env:
           MYSQL_DATABASE: 'doctrine1_test'
           MYSQL_USER: 'doctrine1'
diff --git a/lib/Doctrine/Connection.php b/lib/Doctrine/Connection.php
index 73a7e5fa..2befcef6 100644
--- a/lib/Doctrine/Connection.php
+++ b/lib/Doctrine/Connection.php
@@ -52,6 +52,8 @@
  * @version     $Revision$
  * @author      Konsta Vesterinen <kvesteri@cc.hut.fi>
  * @author      Lukas Smith <smith@pooteeweet.org> (MDB2 library)
+ *
+ * @property Doctrine_Export $export
  */
 abstract class Doctrine_Connection extends Doctrine_Configurable implements Countable, IteratorAggregate, Serializable
 {
@@ -241,11 +243,9 @@ public function isConnected()
     }
 
     /**
-     * getOptions
-     *
      * Get array of all options
      *
-     * @return void
+     * @return array<string, mixed>
      */
     public function getOptions()
     {
@@ -253,14 +253,9 @@ public function getOptions()
     }
 
     /**
-     * getOption
-     *
-     * Retrieves option
-     *
-     * @param string $option
-     * @return void
+     * @return null|mixed
      */
-    public function getOption($option)
+    public function getOption(string $option)
     {
         if (isset($this->options[$option])) {
             return $this->options[$option];
@@ -268,14 +263,11 @@ public function getOption($option)
     }
 
     /**
-     * setOption
-     *
      * Set option value
      *
-     * @param string $option
-     * @return void
+     * @return mixed
      */
-    public function setOption($option, $value)
+    public function setOption(string $option, $value)
     {
       return $this->options[$option] = $value;
     }
@@ -1545,8 +1537,8 @@ public function dropDatabase()
      * which is always guaranteed to exist. Mysql: 'mysql', PostgreSQL: 'postgres', etc.
      * This value is set in the Doctrine_Export_{DRIVER} classes if required
      *
-     * @param string $info
-     * @return void
+     * @param array $info
+     * @return Doctrine_Connection
      */
     public function getTmpConnection($info)
     {
@@ -1556,7 +1548,9 @@ public function getTmpConnection($info)
             $pdoDsn .= 'unix_socket=' . $info['unix_socket'] . ';';
         }
 
-        $pdoDsn .= 'host=' . $info['host'];
+        if ($info['host']) {
+            $pdoDsn .= 'host=' . $info['host'];
+        }
 
         if ($info['port']) {
             $pdoDsn .= ';port=' . $info['port'];
@@ -1566,10 +1560,10 @@ public function getTmpConnection($info)
             $pdoDsn .= ';dbname=' . $this->export->tmpConnectionDatabase;
         }
 
-        $username = $this->getOption('username');
-        $password = $this->getOption('password');
+        $username = $info['user'] ?: $this->getOption('username');
+        $password = $info['password'] ?: $this->getOption('password');
 
-        $conn = $this->getManager()->openConnection(array($pdoDsn, $username, $password), 'doctrine_tmp_connection', false);
+        $conn = $this->getManager()->openConnection([$pdoDsn, $username, $password], 'doctrine_tmp_connection', false);
         $conn->setOption('username', $username);
         $conn->setOption('password', $password);
 
diff --git a/lib/Doctrine/Manager.php b/lib/Doctrine/Manager.php
index a2b08944..9c07f8d3 100644
--- a/lib/Doctrine/Manager.php
+++ b/lib/Doctrine/Manager.php
@@ -274,7 +274,7 @@ public static function connection($adapter = null, $name = null)
     /**
      * Opens a new connection and saves it to Doctrine_Manager->connections
      *
-     * @param PDO|Doctrine_Adapter_Interface $adapter   database driver
+     * @param array|string|PDO|Doctrine_Adapter_Interface $adapter   database driver
      * @param string $name                              name of the connection, if empty numeric key is used
      * @throws Doctrine_Manager_Exception               if trying to bind a connection with an existing name
      * @throws Doctrine_Manager_Exception               if trying to open connection for unknown driver
@@ -292,17 +292,17 @@ public function openConnection($adapter, $name = null, $setCurrent = true)
             if ( ! isset($adapter[0])) {
                 throw new Doctrine_Manager_Exception('Empty data source name given.');
             }
-            $e = explode(':', $adapter[0]);
+            $schema = explode(':', $adapter[0]);
 
-            if ($e[0] == 'uri') {
-                $e[0] = 'odbc';
+            if ($schema[0] === 'uri') {
+                $schema[0] = 'odbc';
             }
 
             $parts['dsn']    = $adapter[0];
-            $parts['scheme'] = $e[0];
-            $parts['user']   = (isset($adapter[1])) ? $adapter[1] : null;
-            $parts['pass']   = (isset($adapter[2])) ? $adapter[2] : null;
-            $driverName = $e[0];
+            $parts['scheme'] = $schema[0];
+            $parts['user']   = $adapter[1] ?? null;
+            $parts['pass']   = $adapter[2] ?? null;
+            $driverName = $schema[0];
             $adapter = $parts;
         } else {
             $parts = $this->parseDsn($adapter);
@@ -329,7 +329,7 @@ public function openConnection($adapter, $name = null, $setCurrent = true)
                 return $this->_connections[$name];
             }
         } else {
-            $name = $this->_index;
+            $name = (string) $this->_index;
             $this->_index++;
         }
 
@@ -352,11 +352,23 @@ public function openConnection($adapter, $name = null, $setCurrent = true)
     /**
      * Parse a pdo style dsn in to an array of parts
      *
-     * @param array $dsn An array of dsn information
-     * @return array The array parsed
+     * @param string $dsn An array of dsn information
+     * @return array{
+     *     dsn: string,
+     *     scheme: string,
+     *     host: ?string,
+     *     user: ?string,
+     *     pass: ?string,
+     *     password: ?string,
+     *     port: ?string,
+     *     path: ?string,
+     *     query: ?string,
+     *     fragment: ?string,
+     *     unix_socket: ?string,
+     *   }
      * @todo package:dbal
      */
-    public function parsePdoDsn($dsn)
+    public function parsePdoDsn($dsn): array
     {
         $parts = array();
 
@@ -401,7 +413,7 @@ public function parsePdoDsn($dsn)
      * @param string $dsn
      * @return array $parts
      */
-    protected function _buildDsnPartsArray($dsn)
+    protected function _buildDsnPartsArray(string $dsn)
     {
         // fix sqlite dsn so that it will parse correctly
         $dsn = str_replace("////", "/", $dsn);
@@ -437,7 +449,7 @@ protected function _buildDsnPartsArray($dsn)
      * @return array Parsed contents of DSN
      * @todo package:dbal
      */
-    public function parseDsn($dsn)
+    public function parseDsn(string $dsn)
     {
         $parts = $this->_buildDsnPartsArray($dsn);
 
diff --git a/tests/MigrationMysqlTestCase.php b/tests/MigrationMysqlTestCase.php
index 5e753ac0..5ca70b0e 100644
--- a/tests/MigrationMysqlTestCase.php
+++ b/tests/MigrationMysqlTestCase.php
@@ -32,6 +32,14 @@
  */
 class Doctrine_MigrationMysql_TestCase extends Doctrine_UnitTestCase
 {
+    public function prepareTables()
+    {
+        $this->tables[] = 'MigrationPhonenumber';
+        $this->tables[] = 'MigrationUser';
+        $this->tables[] = 'MigrationProfile';
+        parent::prepareTables();
+    }
+
     public function setUp()
     {
         parent::setUp();
@@ -41,6 +49,8 @@ public function setUp()
         $this->connection->setOption('dsn', $dsn);
         $this->connection->dropDatabase();
         $this->connection->createDatabase();
+
+        $this->connection->export->exportClasses($this->tables);
     }
 
     public function testAfterSuccessfullMigrationItWillSetMigratedVersionAsCurrentVersionInMysqlDB()