Fix tests for pypy.

Cryptography version 1.0 requires pypy >= 2.6.0.
Pypy on Travis is ~2.5.0, so for now we downgrade cryptography on pypy.

Author: Jeff-Meadows

test/unit/object/test_item.py

@@ -102,14 +102,14 @@ def test_get_shared_link(
         expected_data['shared_link']['access'] = shared_link_access
     if shared_link_unshared_at is not None:
         expected_data['shared_link']['unshared_at'] = shared_link_unshared_at.isoformat()
-    if shared_link_password is not None:
-        expected_data['shared_link']['password'] = shared_link_password
     if shared_link_can_download is not None or shared_link_can_preview is not None:
         expected_data['shared_link']['permissions'] = permissions = {}
         if shared_link_can_download is not None:
             permissions['can_download'] = shared_link_can_download
         if shared_link_can_preview is not None:
             permissions['can_preview'] = shared_link_can_preview
+    if shared_link_password is not None:
+        expected_data['shared_link']['password'] = shared_link_password
     url = test_item.get_shared_link(
         etag=etag,
         access=shared_link_access,

tox.ini

@@ -21,6 +21,12 @@ commands =
   py.test test/ {posargs}
 deps = -rrequirements-dev.txt
 
+[testenv:pypy]
+deps = -rrequirements-dev.txt
+commands =
+  pip install cryptography==0.9.3 --upgrade
+  py.test test/ {posargs}
+
 [testenv:rst]
 deps =
     docutils