From 4c6dce3d397e1a1d4e66802d6514c17ead5a8f40 Mon Sep 17 00:00:00 2001
From: Claudiu Popa <cpopa@cloudbasesolutions.com>
Date: Mon, 12 Jan 2015 21:29:27 +0200
Subject: Check the number of arguments before attempting to obtain the first
 one.

---
 checkers/stdlib.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'checkers/stdlib.py')

diff --git a/checkers/stdlib.py b/checkers/stdlib.py
index 216d640..b6b8026 100644
--- a/checkers/stdlib.py
+++ b/checkers/stdlib.py
@@ -134,7 +134,7 @@ class StdlibChecker(BaseChecker):
 
     def _check_redundant_assert(self, node, infer):
         if (isinstance(infer, astroid.BoundMethod) and
-                isinstance(node.args[0], astroid.Const) and
+                node.args and isinstance(node.args[0], astroid.Const) and
                 infer.name in ['assertTrue', 'assertFalse']):
             self.add_message('redundant-unittest-assert',
                              args=(infer.name, node.args[0].value, ),
-- 
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