Author: Benjamin Peterson <benja...@python.org>
Branch:
Changeset: r53310:9e128382ae65
Date: 2012-03-11 19:18 -0700
http://bitbucket.org/pypy/pypy/changeset/9e128382ae65/
Log: add test for last change
diff --git a/pypy/module/test_lib_pypy/ctypes_tests/test_errno.py
b/pypy/module/test_lib_pypy/ctypes_tests/test_errno.py
new file mode 100644
--- /dev/null
+++ b/pypy/module/test_lib_pypy/ctypes_tests/test_errno.py
@@ -0,0 +1,21 @@
+import py
+
+import ctypes
+from _ctypes import function
+
+_rawffi = py.test.importorskip("_rawffi")
+
+class TestErrno:
+
+ def test_errno_saved_and_restored(self):
+ def check():
+ assert _rawffi.get_errno() == 42
+ assert ctypes.get_errno() == old
+ check.free_temp_buffers = lambda *args: None
+ f = function.CFuncPtr()
+ old = _rawffi.get_errno()
+ f._flags_ = _rawffi.FUNCFLAG_USE_ERRNO
+ ctypes.set_errno(42)
+ f._call_funcptr(check)
+ assert _rawffi.get_errno() == old
+ ctypes.set_errno(0)
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