[pypy-svn] pypy default: Port this failing test from lib-python.

[arigo]

Author: Armin Rigo <arigo at tunes.org>
Branch: 
Changeset: r42767:859e416f3233
Date: 2011-03-17 14:00 -0400
http://bitbucket.org/pypy/pypy/changeset/859e416f3233/

Log:	Port this failing test from lib-python.

diff --git a/pypy/module/_ast/test/test_ast.py b/pypy/module/_ast/test/test_ast.py
--- a/pypy/module/_ast/test/test_ast.py
+++ b/pypy/module/_ast/test/test_ast.py
@@ -232,3 +232,13 @@
 
         raises(TypeError, ast.Num, 1, 2)
         raises(TypeError, ast.Num, 1, 2, lineno=0)
+
+    def test_node_identity(self):
+        import _ast as ast
+        n1 = ast.Num(1)
+        n3 = ast.Num(3)
+        addop = ast.Add()
+        x = ast.BinOp(n1, addop, n3)
+        assert x.left == n1
+        assert x.op == addop
+        assert x.right == n3