1 files changed, 62 insertions, 0 deletions
diff --git a/tests/functional/i/invalid/g/invalid_getnewargs_returned.py b/tests/functional/i/invalid/g/invalid_getnewargs_returned.py
new file mode 100644
index 000000000..ee5305fe8
--- /dev/null
+++ b/tests/functional/i/invalid/g/invalid_getnewargs_returned.py
@@ -0,0 +1,62 @@
+"""Check invalid value returned by __getnewargs__ """
+
+# pylint: disable=too-few-public-methods,missing-docstring,no-self-use,import-error, useless-object-inheritance
+import six
+
+from missing import Missing
+
+
+class FirstGoodGetNewArgs(object):
+    """__getnewargs__ returns <type 'tuple'>"""
+
+    def __getnewargs__(self):
+        return (1, "2", 3)
+
+
+class SecondGoodGetNewArgs(object):
+    """__getnewargs__ returns <type 'tuple'>"""
+
+    def __getnewargs__(self):
+        return tuple()
+
+
+class GetNewArgsMetaclass(type):
+    def __getnewargs__(cls):
+        return (1, 2, 3)
+
+
+@six.add_metaclass(GetNewArgsMetaclass)
+class ThirdGoodGetNewArgs(object):
+    """GetNewArgs through the metaclass."""
+
+
+class FirstBadGetNewArgs(object):
+    """ __getnewargs__ returns an integer """
+
+    def __getnewargs__(self):  # [invalid-getnewargs-returned]
+        return 1
+
+
+class SecondBadGetNewArgs(object):
+    """ __getnewargs__ returns str """
+
+    def __getnewargs__(self):  # [invalid-getnewargs-returned]
+        return "(1, 2, 3)"
+
+
+class ThirdBadGetNewArgs(object):
+    """ __getnewargs__ returns node which does not have 'value' in AST """
+
+    def __getnewargs__(self):  # [invalid-getnewargs-returned]
+        return lambda: tuple(1, 2)
+
+
+class AmbigousGetNewArgs(object):
+    """ Uninferable return value """
+    __getnewargs__ = lambda self: Missing
+
+
+class AnotherAmbiguousGetNewArgs(object):
+    """Potential uninferable return value"""
+    def __getnewargs__(self):
+        return tuple(Missing)