Pass in policy name as part of the oslopolicy-check check call

We were not passing the policy name, which made it quite hard to test
out external checks given that this is information that is passed in
there. This passes that parameter.

Change-Id: I217a6545bdf753470e08b39de2c0df08ffa1f82f

oslo_policy/shell.py

@@ -23,7 +23,7 @@ from oslo_policy import policy
 
 def _try_rule(key, rule, target, access_data, o):
     try:
-        result = rule(target, access_data, o)
+        result = rule(target, access_data, o, current_rule=key)
         if result:
             print("passed: %s" % key)
         else:

oslo_policy/tests/test_shell.py

@@ -13,6 +13,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+import mock
 from oslo_serialization import jsonutils
 
 from oslo_policy import shell
@@ -34,6 +35,33 @@ class CheckerTestCase(base.PolicyBaseTestCase):
             "access.json",
             jsonutils.dumps(token_fixture.SCOPED_TOKEN_FIXTURE))
 
+    @mock.patch("oslo_policy._checks.TrueCheck.__call__")
+    def test_pass_rule_parameters(self, call_mock):
+
+        policy_file = open(self.get_config_file_fullname('policy.yaml'), 'r')
+        access_file = open(self.get_config_file_fullname('access.json'), 'r')
+        apply_rule = None
+        is_admin = False
+        stdout = self._capture_stdout()
+
+        access_data = token_fixture.SCOPED_TOKEN_FIXTURE["token"]
+        target = {
+            "project_id": access_data['project']['id']
+        }
+        access_data['roles'] = [
+            role['name'] for role in access_data['roles']]
+        access_data['project_id'] = access_data['project']['id']
+        access_data['is_admin'] = is_admin
+
+        shell.tool(policy_file, access_file, apply_rule, is_admin)
+        call_mock.assert_called_once_with(
+            target, access_data, mock.ANY,
+            current_rule="sampleservice:sample_rule")
+
+        expected = '''passed: sampleservice:sample_rule
+'''
+        self.assertEqual(expected, stdout.getvalue())
+
     def test_all_nonadmin(self):
 
         policy_file = open(self.get_config_file_fullname('policy.yaml'), 'r')