Fix ec2 pagination bug

.changes/next-release/bugfix-ec2-77933.json

@@ -0,0 +1,5 @@
+{
+  "description": "Fixed a bug causing some ec2 commands to fail with an invalid parameter combination error when arguments were supplied via --cli-input-json. Resolves `#2452 <https://github.com/aws/aws-cli/issues/2452>`__",
+  "category": "ec2",
+  "type": "bugfix"
+}

awscli/customizations/cliinputjson.py

@@ -50,7 +50,7 @@ def __init__(self, session):
 
     def _register_argument_action(self):
         self._session.register(
-            'calling-command', self.add_to_call_parameters)
+            'calling-command.*', self.add_to_call_parameters)
         super(CliInputJSONArgument, self)._register_argument_action()
 
     def add_to_call_parameters(self, call_parameters, parsed_args,

tests/functional/ec2/test_describe_volumes.py

@@ -10,13 +10,25 @@
 # distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
 # ANY KIND, either express or implied. See the License for the specific
 # language governing permissions and limitations under the License.
+import json
+import shutil
+
 from awscli.testutils import BaseAWSCommandParamsTest
+from awscli.testutils import FileCreator
 
 
 class TestDescribeVolumes(BaseAWSCommandParamsTest):
 
     prefix = 'ec2 describe-volumes'
 
+    def setUp(self):
+        super(TestDescribeVolumes, self).setUp()
+        self.file_creator = FileCreator()
+
+    def tearDown(self):
+        super(TestDescribeVolumes, self).tearDown()
+        shutil.rmtree(self.file_creator.rootdir)
+
     def test_max_results_set_by_default(self):
         command = self.prefix
         params = {'MaxResults': 1000}
@@ -39,3 +51,11 @@ def test_max_results_not_overwritten(self):
 
         command = self.prefix + ' --page-size 5'
         self.assert_params_for_cmd(command, params)
+
+    def test_max_results_with_cli_input_json(self):
+        params = {'VolumeIds': ['vol-12345']}
+        file_path = self.file_creator.create_file(
+            'params.json', json.dumps(params))
+
+        command = self.prefix + ' --cli-input-json file://%s' % file_path
+        self.assert_params_for_cmd(command, params)

tests/unit/customizations/test_cliinputjson.py

@@ -40,7 +40,7 @@ def tearDown(self):
 
     def test_register_argument_action(self):
         register_args = self.session.register.call_args_list
-        self.assertEqual(register_args[0][0][0], 'calling-command')
+        self.assertEqual(register_args[0][0][0], 'calling-command.*')
         self.assertEqual(register_args[0][0][1],
                          self.argument.add_to_call_parameters)