tests: Skip large-read tests on 32-bit Python

They would fail with OverflowError.

Author: bgilbert

tests/test_openslide.py

@@ -21,6 +21,7 @@
 from openslide import (OpenSlide, OpenSlideError,
         OpenSlideUnsupportedFormatError)
 import re
+import sys
 import unittest
 
 from . import file_path, have_optimizations, skip_if
@@ -120,12 +121,14 @@ def test_read_region_bad_size(self):
         self.assertRaises(OpenSlideError,
                 lambda: self.osr.read_region((0, 0), 1, (400, -5)))
 
+    @skip_if(sys.maxsize < 1 << 32, '32-bit Python')
     def test_read_region_2GB(self):
         self.assertEqual(
                 self.osr.read_region((1000, 1000), 0, (32768, 16384)).size,
                 (32768, 16384))
 
     @skip_if(have_optimizations, 'only relevant --without-performance')
+    @skip_if(sys.maxsize < 1 << 32, '32-bit Python')
     def test_read_region_2GB_width(self):
         self.assertRaises(ValueError,
                 lambda: self.osr.read_region((1000, 1000), 0, (1 << 29, 1)))