Add HTTP range support for file downloads

Author: AndreyVMarkelov

test/unit/test_dropbox_unit.py

@@ -1,25 +1,25 @@
 #!/usr/bin/env python
 
 import json
-import mock
 import pickle
+from datetime import datetime, timedelta
 
+import mock
 import pytest
 import requests
 
 # Tests OAuth Flow
 from dropbox import DropboxOAuth2Flow, session, Dropbox, create_session
+from dropbox.common import PathRoot
+from dropbox.content_hash import content_hash
 from dropbox.dropbox_client import (
     BadInputException,
     DropboxTeam,
     RouteResult,
     USER_AUTH,
 )
-from dropbox.content_hash import content_hash
-from dropbox.common import PathRoot
 from dropbox.exceptions import AuthError, BadInputError
 from dropbox.oauth import OAuth2FlowNoRedirectResult, DropboxOAuth2FlowNoRedirect
-from datetime import datetime, timedelta
 
 APP_KEY = "dummy_app_key"
 APP_SECRET = "dummy_app_secret"
@@ -712,7 +712,16 @@ def _capture_upload(self, dbx, data, **upload_kwargs):
         # Stub out the network layer and capture the serialized argument sent.
         captured = {}
 
-        def fake_request(host, name, style, serialized_arg, auth, binary, timeout=None):
+        def fake_request(
+            host,
+            name,
+            style,
+            serialized_arg,
+            auth,
+            binary,
+            timeout=None,
+            extra_headers=None,
+        ):
             captured["arg"] = json.loads(serialized_arg)
             return RouteResult(self._fake_file_metadata(len(data), content_hash(data)))