[Backport of r52452]
Patch #1549049: Rewrite type conversion in structmember.
Fixes #1545696 and #1566140.
The new warnings have been omitted in the backport.
diff --git a/Lib/test/test_structmembers.py b/Lib/test/test_structmembers.py
new file mode 100644
index 0000000..7fcf785
--- /dev/null
+++ b/Lib/test/test_structmembers.py
@@ -0,0 +1,48 @@
+from _testcapi import test_structmembersType, \
+ CHAR_MAX, CHAR_MIN, UCHAR_MAX, \
+ SHRT_MAX, SHRT_MIN, USHRT_MAX, \
+ INT_MAX, INT_MIN, UINT_MAX, \
+ LONG_MAX, LONG_MIN, ULONG_MAX
+
+import warnings, exceptions, unittest, test.test_warnings
+from test import test_support
+
+ts=test_structmembersType(1,2,3,4,5,6,7,8,9.99999,10.1010101010)
+
+class ReadWriteTests(unittest.TestCase):
+ def test_types(self):
+ ts.T_BYTE=CHAR_MAX
+ self.assertEquals(ts.T_BYTE, CHAR_MAX)
+ ts.T_BYTE=CHAR_MIN
+ self.assertEquals(ts.T_BYTE, CHAR_MIN)
+ ts.T_UBYTE=UCHAR_MAX
+ self.assertEquals(ts.T_UBYTE, UCHAR_MAX)
+
+ ts.T_SHORT=SHRT_MAX
+ self.assertEquals(ts.T_SHORT, SHRT_MAX)
+ ts.T_SHORT=SHRT_MIN
+ self.assertEquals(ts.T_SHORT, SHRT_MIN)
+ ts.T_USHORT=USHRT_MAX
+ self.assertEquals(ts.T_USHORT, USHRT_MAX)
+
+ ts.T_INT=INT_MAX
+ self.assertEquals(ts.T_INT, INT_MAX)
+ ts.T_INT=INT_MIN
+ self.assertEquals(ts.T_INT, INT_MIN)
+ ts.T_UINT=UINT_MAX
+ self.assertEquals(ts.T_UINT, UINT_MAX)
+
+ ts.T_LONG=LONG_MAX
+ self.assertEquals(ts.T_LONG, LONG_MAX)
+ ts.T_LONG=LONG_MIN
+ self.assertEquals(ts.T_LONG, LONG_MIN)
+ ts.T_ULONG=ULONG_MAX
+ self.assertEquals(ts.T_ULONG, ULONG_MAX)
+
+def test_main(verbose=None):
+ test_support.run_unittest(
+ ReadWriteTests
+ )
+
+if __name__ == "__main__":
+ test_main(verbose=True)