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| author | Mark Harfouche <mark.harfouche@gmail.com> | 2022-06-29 20:05:19 -0400 |
|---|---|---|
| committer | Mark Harfouche <mark.harfouche@gmail.com> | 2022-06-29 22:59:48 -0400 |
| commit | 57d04d883e874c611091933c4c36e1cd43ea0e04 (patch) | |
| tree | 6a1474dce1b2386238b1d3a42204cb5f567c7f42 /numpy/testing/tests | |
| parent | d592523b5a7482e3486fc1bb694b9c570be30365 (diff) | |
| download | numpy-57d04d883e874c611091933c4c36e1cd43ea0e04.tar.gz | |
TST: Add a failing test case to demonstrate the bug gh2176
Diffstat (limited to 'numpy/testing/tests')
| -rw-r--r-- | numpy/testing/tests/test_utils.py | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/numpy/testing/tests/test_utils.py b/numpy/testing/tests/test_utils.py index 49eeecc8e..da3c4f80b 100644 --- a/numpy/testing/tests/test_utils.py +++ b/numpy/testing/tests/test_utils.py @@ -916,6 +916,20 @@ class TestAssertAllclose: a = np.array([[1, 2, 3, "NaT"]], dtype="m8[ns]") assert_allclose(a, a) + def test_error_message_unsigned(self): + """Check the the message is formatted correctly when overflow can occur + (gh21768)""" + # Ensure to test for potential overflow in the case of: + # x - y + # and + # y - x + x = np.asarray([0, 1, 8], dtype='uint8') + y = np.asarray([4, 4, 4], dtype='uint8') + with pytest.raises(AssertionError) as exc_info: + assert_allclose(x, y, atol=3) + msgs = str(exc_info.value).split('\n') + assert_equal(msgs[4], 'Max absolute difference: 4') + class TestArrayAlmostEqualNulp: |