Stop autodecoding content so we can mimic requests. Closes #963.

moto/packages/responses/responses.py

@@ -270,6 +270,8 @@ class RequestsMock(object):
             body=body,
             headers=headers,
             preload_content=False,
+            # Need to not decode_content to mimic requests
+            decode_content=False,
         )
 
         response = adapter.build_response(request, response)

tests/test_s3/test_s3.py

@@ -6,7 +6,9 @@ import datetime
 from six.moves.urllib.request import urlopen
 from six.moves.urllib.error import HTTPError
 from functools import wraps
+from gzip import GzipFile
 from io import BytesIO
+import zlib
 
 import json
 import boto
@@ -1405,6 +1407,33 @@ def test_boto3_delete_markers():
     )
 
 
+@mock_s3
+def test_get_stream_gzipped():
+    payload = "this is some stuff here"
+
+    s3_client = boto3.client("s3", region_name='us-east-1')
+    s3_client.create_bucket(Bucket='moto-tests')
+    buffer_ = BytesIO()
+    with GzipFile(fileobj=buffer_, mode='w') as f:
+        f.write(payload)
+    payload_gz = buffer_.getvalue()
+
+    s3_client.put_object(
+        Bucket='moto-tests',
+        Key='keyname',
+        Body=payload_gz,
+        ContentEncoding='gzip',
+    )
+
+    obj = s3_client.get_object(
+        Bucket='moto-tests',
+        Key='keyname',
+    )
+    res = zlib.decompress(obj['Body'].read(), 16+zlib.MAX_WBITS)
+    assert res == payload
+
+
+
 TEST_XML = """\
 <?xml version="1.0" encoding="UTF-8"?>
 <ns0:WebsiteConfiguration xmlns:ns0="http://s3.amazonaws.com/doc/2006-03-01/">