diff --git a/tests/HTMLPurifier/Test.php b/tests/HTMLPurifier/Test.php
new file mode 100644
index 00000000..a4860405
--- /dev/null
+++ b/tests/HTMLPurifier/Test.php
@@ -0,0 +1,23 @@
+<?php
+
+require_once 'HTMLPurifier.php';
+
+// integration test
+
+class HTMLPurifier_Test extends UnitTestCase
+{
+    var $purifier;
+    
+    function assertPurification($input, $expect) {
+        $result = $this->purifier->purify($input);
+        $this->assertIdentical($expect, $result);
+    }
+    
+    function test() {
+        $config = HTMLPurifier_Config::createDefault();
+        $this->purifier = new HTMLPurifier($config);
+        $this->assertPurification("Null byte\0", "Null byte");
+    }
+}
+
+?>
\ No newline at end of file
diff --git a/tests/index.php b/tests/index.php
index f4c36d0e..beaf1831 100644
--- a/tests/index.php
+++ b/tests/index.php
@@ -88,6 +88,7 @@ $test_files[] = 'URISchemeRegistryTest.php';
 $test_files[] = 'URISchemeTest.php';
 $test_files[] = 'EncoderTest.php';
 $test_files[] = 'EntityParserTest.php';
+$test_files[] = 'Test.php';
 
 if (version_compare(PHP_VERSION, '5', '>=')) {
     $test_files[] = 'TokenFactoryTest.php';