[2.1.1] Single test methods can be invoked by prefixing them with __only

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1363 48356398-32a2-884e-a903-53898d9a118a

tests/HTMLPurifier/Harness.php

@@ -55,5 +55,15 @@ class HTMLPurifier_Harness extends UnitTestCase
         }
     }
     
+    function getTests() {
+        // __onlytest makes only one test get triggered
+        foreach (get_class_methods(get_class($this)) as $method) {
+            if (strtolower(substr($method, 0, 10)) == '__onlytest') {
+                return array($method);
+            }
+        }
+        return parent::getTests();
+    }
+    
 }