fixed a test regression

test/src/test/java/hudson/model/DownloadServiceTest.java

@@ -34,10 +34,22 @@ public class DownloadServiceTest extends HudsonTestCase {
 
     @Bug(5536)
     public void testPost() throws Exception {
+        // initially it should fail because the data doesn't have a signature
         assertNull(job.getData());
         createWebClient().goTo("/self/testPost");
-        JSONObject d = job.getData();
-        assertEquals(hashCode(),d.getInt("hello"));
+        assertNull(job.getData());
+
+        // and now it should work
+        DownloadService.signatureCheck = false;
+        try {
+            createWebClient().goTo("/self/testPost");
+            JSONObject d = job.getData();
+            assertEquals(hashCode(),d.getInt("hello"));
+        } finally {
+            DownloadService.signatureCheck = true;
+        }
+
+        // TODO: test with a signature
     }
 
     /**