Improve test names.

appengine/images/tests/test_guestbook.py

@@ -21,7 +21,7 @@
 
 
 class TestHandlers(DatastoreTestbedCase):
-    def test_hello(self):
+    def test_get(self):
         # Build a request object passing the URI path to be tested.
         # You can also pass headers, query arguments etc.
         request = webapp2.Request.blank('/')
@@ -52,7 +52,7 @@ def test_img(self):
         self.assertEqual(response.status_int, 500)
 
     @mock.patch('appengine.images.main.images')
-    def test_get(self, mock_images):
+    def test_post_and_get(self, mock_images):
         mock_images.resize.return_value = 'asdf'
         request = webapp2.Request.blank(
             '/sign',