Issue #11235: Fix OverflowError when trying to import a source file whose modification time doesn't fit in a 32-bit timestamp.
diff --git a/Lib/importlib/test/source/test_file_loader.py b/Lib/importlib/test/source/test_file_loader.py
index de1c4d8..89990be 100644
--- a/Lib/importlib/test/source/test_file_loader.py
+++ b/Lib/importlib/test/source/test_file_loader.py
@@ -128,6 +128,23 @@
pycache = os.path.dirname(imp.cache_from_source(file_path))
shutil.rmtree(pycache)
+ def test_timestamp_overflow(self):
+ # When a modification timestamp is larger than 2**32, it should be
+ # truncated rather than raise an OverflowError.
+ with source_util.create_modules('_temp') as mapping:
+ source = mapping['_temp']
+ compiled = imp.cache_from_source(source)
+ with open(source, 'w') as f:
+ f.write("x = 5")
+ os.utime(source, (2 ** 33, 2 ** 33))
+ loader = _bootstrap._SourceFileLoader('_temp', mapping['_temp'])
+ mod = loader.load_module('_temp')
+ # Sanity checks.
+ self.assertEqual(mod.__cached__, compiled)
+ self.assertEqual(mod.x, 5)
+ # The pyc file was created.
+ os.stat(compiled)
+
class BadBytecodeTest(unittest.TestCase):