Test failure on 32-bit Intel-compatible architecture

[lfam]

While building on the 32-bit Intel compatible architecture ('i386'), we see this test failure:

======================================================================
FAIL: test_estimated_compression_context_size (tests.test_data_structures.TestCompressionParameters)
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Traceback (most recent call last):
  File "/tmp/guix-build-python-zstandard-0.15.2.drv-0/zstandard-0.15.2/tests/test_data_structures.py", line 104, in test_estimated_compression_context_size
    self.assertAlmostEqual(
AssertionError: 1294656 != 1295064 within 400 delta (408 difference)

----------------------------------------------------------------------
Ran 278 tests in 0.866s

FAILED (failures=1, skipped=42)
Test failed: <unittest.runner.TextTestResult run=278 errors=0 failures=1>
error: Test failed: <unittest.runner.TextTestResult run=278 errors=0 failures=1>
command "python" "-c" "import setuptools, tokenize;__file__='setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\\r\\n', '\\n');f.close();exec(compile(code, __file__, 'exec'))" "test" failed with status 1

I noticed that Gentoo is skipping the test: https://bugs.gentoo.org/773979

Can you advise if this test should be skipped? Or does it highlight a real problem with python-zstandard on the 32-bit Intel architecture?

[indygreg]

The test failure is harmless and is safe to ignore: it is testing internal implementation details of the zstd library. But keeping the test is important, as it helps us guard against accidental increases in memory utilization as a result of us using zstd APIs incorrectly.

This test also started failing with the 1.5.0 upgrade I'm about to push. It may start passing again.