diff --git a/tests/dbal/boolean_processor_test.php b/tests/dbal/boolean_processor_test.php
index 5e044797f8..8662485ac8 100644
--- a/tests/dbal/boolean_processor_test.php
+++ b/tests/dbal/boolean_processor_test.php
@@ -45,7 +45,11 @@ class phpbb_boolean_processor_test extends phpbb_database_test_case
 			array('user_id' => '2'),
 			array('user_id' => '3'),
 			array('user_id' => '6'),
-			), $db->sql_fetchrowset($result));
+			), $db->sql_fetchrowset($result),
+				($result === false) ?
+				"SQL ERROR:<br>" . var_export($sql, true) . "<br>" . $db->sql_error() :
+				var_export($sql, true) . '   ' . var_export($result, true)
+			);
 	}
 
 	public function test_single_like()
@@ -70,7 +74,11 @@ class phpbb_boolean_processor_test extends phpbb_database_test_case
 		$this->assertEquals(array(
 			array('user_id' => '4'),
 			array('user_id' => '5'),
-			), $db->sql_fetchrowset($result));
+			), $db->sql_fetchrowset($result),
+				($result === false) ?
+				"SQL ERROR:<br>" . var_export($sql, true) . "<br>" . $db->sql_error() :
+				var_export($sql, true) . '   ' . var_export($result, true)
+			);
 	}
 
 	public function test_single_not_in()
@@ -96,7 +104,11 @@ class phpbb_boolean_processor_test extends phpbb_database_test_case
 			array('user_id' => '1'),
 			array('user_id' => '2'),
 			array('user_id' => '6'),
-			), $db->sql_fetchrowset($result));
+			), $db->sql_fetchrowset($result),
+				($result === false) ?
+				"SQL ERROR:<br>" . var_export($sql, true) . "<br>" . $db->sql_error() :
+				var_export($sql, true) . '   ' . var_export($result, true)
+			);
 	}
 
 	public function test_single_in()
@@ -122,7 +134,11 @@ class phpbb_boolean_processor_test extends phpbb_database_test_case
 			array('user_id' => '3'),
 			array('user_id' => '4'),
 			array('user_id' => '5'),
-			), $db->sql_fetchrowset($result));
+			), $db->sql_fetchrowset($result),
+				($result === false) ?
+				"SQL ERROR:<br>" . var_export($sql, true) . "<br>" . $db->sql_error() :
+				var_export($sql, true) . '   ' . var_export($result, true)
+			);
 	}
 
 	public function test_and_of_or_of_and()
@@ -168,7 +184,11 @@ class phpbb_boolean_processor_test extends phpbb_database_test_case
 		$this->assertEquals(array(
 			array('user_id' => '2'),
 			array('user_id' => '4'),
-			), $db->sql_fetchrowset($result));
+			), $db->sql_fetchrowset($result),
+				($result === false) ?
+				"SQL ERROR:<br>" . var_export($sql, true) . "<br>" . $db->sql_error() :
+				var_export($sql, true) . '   ' . var_export($result, true)
+			);
 	}
 
 	public function test_triple_and_with_in()
@@ -200,6 +220,11 @@ class phpbb_boolean_processor_test extends phpbb_database_test_case
 			array('user_id' => '2'),
 			array('user_id' => '3'),
 			), $db->sql_fetchrowset($result),
+			($result === false) ?
+				"SQL ERROR:<br>" . var_export($sql, true) . "<br>" . $db->sql_error() :
+				var_export($sql, true) . '   ' . var_export($result, true)
+		);
+
 	}
 
 	public function test_double_and_with_not_of_or()
@@ -230,7 +255,11 @@ class phpbb_boolean_processor_test extends phpbb_database_test_case
 
 		$db->sql_return_on_error(false);
 
-		$this->assertEquals(array(), $db->sql_fetchrowset($result));
+		$this->assertEquals(array(), $db->sql_fetchrowset($result),
+				($result === false) ?
+				"SQL ERROR:<br>" . var_export($sql, true) . "<br>" . $db->sql_error() :
+				var_export($sql, true) . '   ' . var_export($result, true)
+			);
 	}
 
 	public function test_triple_and_with_is_null()
@@ -268,6 +297,10 @@ class phpbb_boolean_processor_test extends phpbb_database_test_case
 		$this->assertEquals(array(
 			array('username' => 'helper'),
 			array('username' => 'mass email'),
-			), $db->sql_fetchrowset($result));
+			), $db->sql_fetchrowset($result),
+				($result === false) ?
+				"SQL ERROR:<br>" . var_export($sql, true) . "<br>" . $db->sql_error() :
+				var_export($sql, true) . '   ' . var_export($result, true)
+			);
 	}
 }