Moves an incorrectly marked negative test

The following test had been marked as negative by mistake. This commits
moves it back to the positive test file.

tempest.api.compute.images.test_images:ImagesNegativeTestJSON.test_create_image_from_stopped_server

Change-Id: I61dc6fbdf269e69e76edbf5d393da64d48bb1d5e
diff --git a/tempest/api/compute/images/test_images.py b/tempest/api/compute/images/test_images.py
index 0324df2..dc62620 100644
--- a/tempest/api/compute/images/test_images.py
+++ b/tempest/api/compute/images/test_images.py
@@ -14,6 +14,7 @@
 
 from tempest.api.compute import base
 from tempest.common.utils import data_utils
+from tempest.common import waiters
 from tempest import config
 from tempest import test
 
@@ -48,3 +49,18 @@
                                               name=snapshot_name,
                                               wait_until='SAVING')
         self.client.delete_image(image['id'])
+
+    @test.idempotent_id('aaacd1d0-55a2-4ce8-818a-b5439df8adc9')
+    def test_create_image_from_stopped_server(self):
+        server = self.create_test_server(wait_until='ACTIVE')
+        self.servers_client.stop_server(server['id'])
+        waiters.wait_for_server_status(self.servers_client,
+                                       server['id'], 'SHUTOFF')
+        self.addCleanup(self.servers_client.delete_server, server['id'])
+        snapshot_name = data_utils.rand_name('test-snap')
+        image = self.create_image_from_server(server['id'],
+                                              name=snapshot_name,
+                                              wait_until='ACTIVE',
+                                              wait_for_server=False)
+        self.addCleanup(self.client.delete_image, image['id'])
+        self.assertEqual(snapshot_name, image['name'])
diff --git a/tempest/api/compute/images/test_images_negative.py b/tempest/api/compute/images/test_images_negative.py
index 126d092..9197adf 100644
--- a/tempest/api/compute/images/test_images_negative.py
+++ b/tempest/api/compute/images/test_images_negative.py
@@ -71,22 +71,6 @@
                           '!@#$%^&*()', name=name, meta=meta)
 
     @test.attr(type=['negative'])
-    @test.idempotent_id('aaacd1d0-55a2-4ce8-818a-b5439df8adc9')
-    def test_create_image_from_stopped_server(self):
-        server = self.create_test_server(wait_until='ACTIVE')
-        self.servers_client.stop_server(server['id'])
-        waiters.wait_for_server_status(self.servers_client,
-                                       server['id'], 'SHUTOFF')
-        self.addCleanup(self.servers_client.delete_server, server['id'])
-        snapshot_name = data_utils.rand_name('test-snap')
-        image = self.create_image_from_server(server['id'],
-                                              name=snapshot_name,
-                                              wait_until='ACTIVE',
-                                              wait_for_server=False)
-        self.addCleanup(self.client.delete_image, image['id'])
-        self.assertEqual(snapshot_name, image['name'])
-
-    @test.attr(type=['negative'])
     @test.idempotent_id('ec176029-73dc-4037-8d72-2e4ff60cf538')
     def test_create_image_specify_uuid_35_characters_or_less(self):
         # Return an error if Image ID passed is 35 characters or less