diff --git a/swh/objstorage/tests/test_objstorage_azure.py b/swh/objstorage/tests/test_objstorage_azure.py
new file mode 100644
index 0000000..cfd2b56
--- /dev/null
+++ b/swh/objstorage/tests/test_objstorage_azure.py
@@ -0,0 +1,60 @@
+# Copyright (C) 2016  The Software Heritage developers
+# See the AUTHORS file at the top-level directory of this distribution
+# License: GNU General Public License version 3, or any later version
+# See top-level LICENSE file for more information
+
+import unittest
+
+from swh.objstorage.cloud.objstorage_azure import AzureCloudObjStorage
+
+from objstorage_testing import ObjStorageTestFixture
+
+
+class MockBlob():
+    """ Libcloud object mock that replicates its API """
+    def __init__(self, name, content):
+        self.name = name
+        self.content = content
+
+
+class MockBlockBlobService():
+    """Mock internal azure library which AzureCloudObjStorage depends upon.
+
+    """
+    data = {}
+
+    def __init__(self, account_name, api_secret_key, container_name):
+        # do not care for the account_name and the api_secret_key here
+        self.data[container_name] = {}
+
+    def create_blob_from_bytes(self, container_name, blob_name, blob):
+        self.data[container_name][blob_name] = blob
+
+    def get_blob_to_bytes(self, container_name, blob_name):
+        if blob_name not in self.data[container_name]:
+            return None
+        return MockBlob(name=blob_name,
+                        content=self.data[container_name][blob_name])
+
+    def exists(self, container_name, blob_name):
+        return blob_name in self.data[container_name]
+
+    def list_blobs(self, container_name):
+        for blob_name, content in self.data[container_name].items():
+            yield MockBlob(name=blob_name, content=content)
+
+
+class MockAzureCloudObjStorage(AzureCloudObjStorage):
+    """ Cloud object storage that uses a mocked driver """
+    def __init__(self, api_key, api_secret_key, container_name):
+        self.container_name = container_name
+        self.block_blob_service = MockBlockBlobService(api_key, api_secret_key,
+                                                       container_name)
+
+
+class TestAzureCloudObjStorage(ObjStorageTestFixture, unittest.TestCase):
+
+    def setUp(self):
+        super().setUp()
+        self.storage = MockAzureCloudObjStorage(
+            'account-name', 'api-secret-key', 'container-name')