Warn when parameter unpacking is used as it is not supported in Python

3.

Part of issue #20.

2 files changed, 8 insertions, 1 deletions

diff --git a/test/functional/defined_and_used_on_same_line.py b/test/functional/defined_and_used_on_same_line.py
index f317ba3..fc19dc7 100644
--- a/test/functional/defined_and_used_on_same_line.py
+++ b/test/functional/defined_and_used_on_same_line.py
@@ -1,5 +1,5 @@
 """Check for definitions and usage happening on the same line."""
-#pylint: disable=missing-docstring,multiple-statements,print-statement,no-absolute-import
+#pylint: disable=missing-docstring,multiple-statements,print-statement,no-absolute-import,parameter-unpacking
 
 print [index
        for index in range(10)]
diff --git a/test/unittest_checker_python3.py b/test/unittest_checker_python3.py
index ecfbc4e..28b152d 100644
--- a/test/unittest_checker_python3.py
+++ b/test/unittest_checker_python3.py
@@ -244,6 +244,13 @@ class Python3CheckerTest(testutils.CheckerTestCase):
         with self.assertNoMessages():
             self.walk(module)
 
+    @python2_only
+    def test_parameter_unpacking(self):
+        node = test_utils.extract_node('def func((a, b)):#@\n pass')
+        arg = node.args.args[0]
+        with self.assertAddsMessages(testutils.Message('parameter-unpacking', node=arg)):
+            self.walk(node)
+
 
 if __name__ == '__main__':
     unittest.main()