Fix functional test of get_many_messages

This fixes the test for retrieving several messages by IDs, which was
previously not supported by falcon. Upgrading it fixes the behavior so
we need to change the test as well.

Change-Id: Icf355f9a6d667371a4f2b6077ca4954e1351e92d
(cherry picked from commit bee843a033)

zaqarclient/tests/queues/queues.py

@@ -362,9 +362,17 @@ class QueuesV1QueueFunctionalTest(base.QueuesTestBase):
         msgs_id = [ref.split('/')[-1] for ref in res]
         messages = queue.messages(*msgs_id)
         self.assertTrue(isinstance(messages, iterator._Iterator))
-        # FIXME(flaper87): Fix this as soon as we start
-        # sending `ids=1,2,3` to falcon
-        self.assertEqual(len(list(messages)), 1)
+        messages = list(messages)
+        length = len(messages)
+        if length == 3:
+            bodies = set(message.body for message in messages)
+            self.assertEqual(
+                set(['Post It 1!', 'Post It 2!', 'Post It 3!']), bodies)
+        elif length == 1:
+            # FIXME(therve): Old broken behavior, remove it as some point
+            pass
+        else:
+            self.fail("Wrong number of messages: '%d'" % length)
 
     def test_message_delete_many_functional(self):
         queue = self.client.queue("test_queue")
@@ -381,8 +389,6 @@ class QueuesV1QueueFunctionalTest(base.QueuesTestBase):
         queue.delete_messages(*msgs_id)
 
         messages = queue.messages()
-        # FIXME(flaper87): Fix this as soon as we start
-        # sending `ids=1,2,3` to falcon
         self.assertEqual(len(list(messages)), 0)