From: Robert Bradshaw <robertwb@math.washington.edu>
Date: Sat, 31 Jul 2010 03:30:37 +0000 (-0700)
Subject: Testcase for #564, refcount bug in isinstance optimization
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=7354f5085f33ebef172f64a93b110e4d612fe6a6;p=cython.git

Testcase for #564, refcount bug in isinstance optimization
---

diff --git a/tests/run/isinstance.pyx b/tests/run/isinstance.pyx
index 75a9f536..0519b346 100644
--- a/tests/run/isinstance.pyx
+++ b/tests/run/isinstance.pyx
@@ -73,3 +73,17 @@ def test_custom():
     """
     assert isinstance(A(), A)
     return True
+
+def test_nested(x):
+    """
+    >>> test_nested(1)
+    True
+    >>> test_nested(1.5)
+    True
+    >>> test_nested("a")
+    False
+    """
+    cdef object a = (x, None)
+    if isinstance(a[0], (int, float)):
+        return True
+    return False