Add systests for listing bucket blobs (V2/V4).

storage/tests/system.py

@@ -19,6 +19,7 @@
 import time
 import unittest
 
+import pytest
 import requests
 import six
 
@@ -752,6 +753,42 @@ def tearDown(self):
             if blob.exists():
                 retry(blob.delete)()
 
+    def _create_signed_list_blobs_url_helper(
+        self, version, expiration=None, max_age=None, method="GET"
+    ):
+        if expiration is None and max_age is None:
+            max_age = 10
+
+        signed_url = self.bucket.generate_signed_url(
+            expiration=expiration,
+            max_age=max_age,
+            method=method,
+            client=Config.CLIENT,
+            version=version,
+        )
+
+        response = requests.get(signed_url)
+        self.assertEqual(response.status_code, 200)
+
+    def test_create_signed_list_blobs_url_v2(self):
+        self._create_signed_list_blobs_url_helper(version="v2")
+
+    def test_create_signed_list_blobs_url_v2_w_expiration(self):
+        now = datetime.datetime.utcnow()
+        delta = datetime.timedelta(seconds=10)
+
+        self._create_signed_list_blobs_url_helper(expiration=now + delta, version="v2")
+
+    @pytest.mark.skip(reason="Back-end case-flattening bug: revisit 2019-04-03")
+    def test_create_signed_list_blobs_url_v4(self):
+        self._create_signed_list_blobs_url_helper(version="v4")
+
+    @pytest.mark.skip(reason="Back-end case-flattening bug: revisit 2019-04-03")
+    def test_create_signed_list_blobs_url_v4_w_expiration(self):
+        now = datetime.datetime.utcnow()
+        delta = datetime.timedelta(seconds=10)
+        self._create_signed_list_blobs_url_helper(expiration=now + delta, version="v4")
+
     def _create_signed_read_url_helper(
         self,
         blob_name="LogoToSign.jpg",