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-rw-r--r--tests/test_map.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/tests/test_map.py b/tests/test_map.py
index 3e7633a..7af9513 100644
--- a/tests/test_map.py
+++ b/tests/test_map.py
@@ -1,3 +1,4 @@
+import collections.abc
import gc
import random
import unittest
@@ -795,6 +796,9 @@ class BaseMapTest:
with HaskKeyCrasher(error_on_hash=True):
hash(m)
+ def test_abc_1(self):
+ self.assertTrue(issubclass(self.Map, collections.abc.Mapping))
+
class PyMapTest(BaseMapTest, unittest.TestCase):