Don't encode video and don't send uploaded files to GCS when TESTING.

Unittests shouldn't connect to external systems. We could mock GCS and
Zencoder, but that's a lot more work, and takes time to maintain.

pillar/application/modules/file_storage.py

@@ -120,6 +120,9 @@ def _process_image(gcs, file_id, local_file, src_file):
     # TODO: parallelize this at some point.
     for variation in src_file['variations']:
         fname = variation['file_path']
+        if current_app.config['TESTING']:
+            log.warning('  - NOT sending thumbnail %s to GCS', fname)
+        else:
             log.debug('  - Sending thumbnail %s to GCS', fname)
             blob = gcs.bucket.blob('_/' + fname, chunk_size=256 * 1024 * 2)
             blob.upload_from_filename(variation['local_path'],
@@ -166,6 +169,12 @@ def _process_video(gcs, file_id, local_file, src_file):
     # that's why we build a list.
     src_file['variations'].append(file_variation)
 
+    if current_app.config['TESTING']:
+        log.warning('_process_video: NOT sending out encoding job due to TESTING=%r',
+                    current_app.config['TESTING'])
+        j = type('EncoderJob', (), {'process_id': 'fake-process-id',
+                                    'backend': 'fake'})
+    else:
         j = Encoder.job_create(src_file)
         if j is None:
             log.warning('_process_video: unable to create encoder job for file %s.', file_id)
@@ -561,6 +570,12 @@ def stream_to_gcs(project_id):
     else:
         file_size = os.fstat(stream_for_gcs.fileno()).st_size
 
+    if current_app.config['TESTING']:
+        log.warning('NOT streaming to GCS because TESTING=%r', current_app.config['TESTING'])
+        # Fake a Blob object.
+        gcs = None
+        blob = type('Blob', (), {'size': file_size})
+    else:
         # Upload the file to GCS.
         from gcloud.streaming import transfer
         # Files larger than this many bytes will be streamed directly from disk, smaller