Keystoneclient create user API should have optional password.

Password is optional in Keystone service. The create user API
in keystoneclient should have password None as default value.

Change-Id: Ic72867c9b86ca65e3237786e35bcb5bd44f5f053
Closes-Bug: #1273988

keystoneclient/tests/v2_0/test_users.py

@@ -116,6 +116,39 @@ class UserTests(utils.TestCase):
         self.assertEqual(user.name, "gabriel")
         self.assertRequestBodyIs(json=req_body)
 
+    @httpretty.activate
+    def test_create_user_without_password(self):
+        user_name = 'test'
+        user_id = uuid.uuid4().hex
+        tenant_id = uuid.uuid4().hex
+        user_enabled = True
+        req_body = {
+            'user': {
+                'name': user_name,
+                'password': None,
+                'tenantId': tenant_id,
+                'enabled': user_enabled,
+                'email': None,
+            }
+        }
+        resp_body = {
+            'user': {
+                'name': user_name,
+                'enabled': user_enabled,
+                'tenantId': tenant_id,
+                'id': user_id,
+            }
+        }
+
+        self.stub_url(httpretty.POST, ['users'], json=resp_body)
+
+        user = self.client.users.create(user_name, tenant_id=tenant_id,
+                                        enabled=user_enabled)
+        self.assertIsInstance(user, users.User)
+        self.assertEqual(user_id, user.id)
+        self.assertEqual(user_name, user.name)
+        self.assertRequestBodyIs(json=req_body)
+
     @httpretty.activate
     def test_delete(self):
         self.stub_url(httpretty.DELETE, ['users', self.ADMIN_USER_ID],

keystoneclient/v2_0/users.py

@@ -86,7 +86,8 @@ class UserManager(base.ManagerWithFind):
         return self._update("/users/%s/OS-KSADM/tenant" % base.getid(user),
                             params, "user")
 
-    def create(self, name, password, email=None, tenant_id=None, enabled=True):
+    def create(self, name, password=None, email=None,
+               tenant_id=None, enabled=True):
         """Create a user."""
         params = {"user": {"name": name,
                            "password": password,