Making use of encode use utf-8 explicitly

Author: craigloftus

gcloud/storage/test_api.py

@@ -58,7 +58,7 @@ def _lookup_bucket_hit_helper(self, use_default=False):
         ])
         http = conn._http = Http(
             {'status': '200', 'content-type': 'application/json'},
-            '{{"name": "{0}"}}'.format(BLOB_NAME).encode(),
+            '{{"name": "{0}"}}'.format(BLOB_NAME).encode('utf-8'),
         )
 
         if use_default:
@@ -119,7 +119,7 @@ def _get_all_buckets_non_empty_helper(self, use_default=False):
         ])
         http = conn._http = Http(
             {'status': '200', 'content-type': 'application/json'},
-            '{{"items": [{{"name": "{0}"}}]}}'.format(BUCKET_NAME).encode(),
+            '{{"items": [{{"name": "{0}"}}]}}'.format(BUCKET_NAME).encode('utf-8'),
         )
 
         if use_default: