test rsa.Key verification

Author: stavxyz

chef/tests/test_api.py

@@ -26,3 +26,9 @@ def test_env_variables(self):
             self.assertEqual(api.client, 'foobar')
         finally:
             del os.environ['_PYCHEF_TEST_']
+
+    def test_bad_key_raises(self):
+        invalids = [None, '']
+        for item in invalids:
+            self.assertRaises(
+                ValueError, ChefAPI, 'foobar', item, 'user')