Index: CommonBackendTest.php
===================================================================
--- CommonBackendTest.php   (revision 24811)
+++ CommonBackendTest.php   (working copy)
@@ -280,6 +280,20 @@
         $this->assertFalse($this->_instance->test('bar3'));
     }

+    public function testCleanModeMatchingAnyTags()
+    {
+        $this->assertTrue($this->_instance->clean(Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG, array('tag1')));
+        $this->assertTrue($this->_instance->test('bar') > 999999);
+        $this->assertTrue($this->_instance->test('bar3') > 999999);
+        $this->assertFalse($this->_instance->test('bar2'));
+    }
+
+    public function testCleanModeMatchingAnyTags2()
+    {
+        $this->assertTrue($this->_instance->clean(Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG, array('tag4', 'tag1')));
+        $this->assertFalse($this->_instance->test('bar'));
+        $this->assertFalse($this->_instance->test('bar2'));
+        $this->assertTrue($this->_instance->test('bar3') > 999999);
+    }
 }

-
Index: CommonExtendedBackendTest.php
===================================================================
--- CommonExtendedBackendTest.php   (revision 24811)
+++ CommonExtendedBackendTest.php   (working copy)
@@ -173,6 +173,41 @@
         $this->assertTrue(in_array('bar3', $res));
     }

+    public function testGetIdsMatchingAnyTags()
+    {
+        if (!($this->_capabilities['tags'])) {
+            #Â unsupported by this backend
+            return;
+        }
+        $res = $this->_instance->getIdsMatchingAnyTags(array('tag5'));
+        $this->assertTrue(count($res) == 0);
+    }
+
+    public function testGetIdsMatchingAnyTags2()
+    {
+        if (!($this->_capabilities['tags'])) {
+            #Â unsupported by this backend
+            return;
+        }
+        $res = $this->_instance->getIdsMatchingAnyTags(array('tag3'));
+        $this->assertTrue(count($res) == 3);
+        $this->assertTrue(in_array('bar', $res));
+        $this->assertTrue(in_array('bar2', $res));
+        $this->assertTrue(in_array('bar3', $res));
+    }
+
+    public function testGetIdsMatchingAnyTags3()
+    {
+        if (!($this->_capabilities['tags'])) {
+            #Â unsupported by this backend
+            return;
+        }
+        $res = $this->_instance->getIdsMatchingAnyTags(array('tag2', 'tag4'));
+        $this->assertTrue(count($res) == 2);
+        $this->assertTrue(in_array('bar', $res));
+        $this->assertTrue(in_array('bar3', $res));
+    }
+
     public function testGetMetadatas($notag = false)
     {
         $res = $this->_instance->getMetadatas('bar');