diff --git a/tests/dbal/sql_affected_rows_test.php b/tests/dbal/sql_affected_rows_test.php
new file mode 100644
index 0000000000..df008bab9a
--- /dev/null
+++ b/tests/dbal/sql_affected_rows_test.php
@@ -0,0 +1,73 @@
+<?php
+/**
+*
+* @package testing
+* @copyright (c) 2014 phpBB Group
+* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
+*
+*/
+
+class phpbb_dbal_sql_affected_rows_test extends phpbb_database_test_case
+{
+	/** @var \phpbb\db\driver\driver_interface */
+	protected $db;
+
+	public function setUp()
+	{
+		parent::setUp();
+		$this->db = $this->new_dbal();
+	}
+
+	public function getDataSet()
+	{
+		return $this->createXMLDataSet(dirname(__FILE__) . '/fixtures/config.xml');
+	}
+
+	public function test_select()
+	{
+		$sql = 'SELECT *
+			FROM ' . CONFIG_TABLE;
+		$this->db->sql_query($sql);
+
+		$this->assertEquals(2, $this->db->sql_affectedrows());
+	}
+
+	public function test_update()
+	{
+		$sql = 'UPDATE ' . CONFIG_TABLE . "
+			SET config_value = 'bertie'";
+		$this->db->sql_query($sql);
+
+		$this->assertEquals(2, $this->db->sql_affectedrows());
+	}
+
+	public function test_update_all_matched_unequal_updated()
+	{
+		$sql = 'UPDATE ' . CONFIG_TABLE . "
+			SET config_value = 'foo'";
+		$this->db->sql_query($sql);
+
+		$this->assertEquals(2, $this->db->sql_affectedrows());
+	}
+
+	public function test_update_some_matched_unequal_updated()
+	{
+		$sql = 'UPDATE ' . CONFIG_TABLE . "
+			SET config_value = 'foo'
+			WHERE config_value = 'foo'";
+		$this->db->sql_query($sql);
+
+		$this->assertEquals(1, $this->db->sql_affectedrows());
+	}
+
+	public function test_insert()
+	{
+		$sql = 'INSERT INTO ' . CONFIG_TABLE . ' ' . $this->db->sql_build_array('INSERT', array(
+			'config_name'	=> 'bertie',
+			'config_value'	=> 'rules',
+		));
+		$this->db->sql_query($sql);
+
+		$this->assertEquals(1, $this->db->sql_affectedrows());
+	}
+}