bpo-29998: Pickling and copying ImportError now preserves name and path (#1010)

attributes.

1 files changed, 20 insertions, 0 deletions

diff --git a/Lib/test/test_exceptions.py b/Lib/test/test_exceptions.py
index 2cac6c530a..e6fa34610d 100644
--- a/Lib/test/test_exceptions.py
+++ b/Lib/test/test_exceptions.py
@@ -1,5 +1,6 @@
 # Python test set -- part 5, built-in exceptions
 
+import copy
 import os
 import sys
 import unittest
@@ -1126,6 +1127,25 @@ class ImportErrorTests(unittest.TestCase):
             exc = ImportError(arg)
             self.assertEqual(str(arg), str(exc))
 
+    def test_copy_pickle(self):
+        for kwargs in (dict(),
+                       dict(name='somename'),
+                       dict(path='somepath'),
+                       dict(name='somename', path='somepath')):
+            orig = ImportError('test', **kwargs)
+            for proto in range(pickle.HIGHEST_PROTOCOL + 1):
+                exc = pickle.loads(pickle.dumps(orig, proto))
+                self.assertEqual(exc.args, ('test',))
+                self.assertEqual(exc.msg, 'test')
+                self.assertEqual(exc.name, orig.name)
+                self.assertEqual(exc.path, orig.path)
+            for c in copy.copy, copy.deepcopy:
+                exc = c(orig)
+                self.assertEqual(exc.args, ('test',))
+                self.assertEqual(exc.msg, 'test')
+                self.assertEqual(exc.name, orig.name)
+                self.assertEqual(exc.path, orig.path)
+
 
 if __name__ == '__main__':
     unittest.main()