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"""Collection of tests around character encodings."""
import codecs
import locale
import sys
import pytest
PY3 = sys.version_info[0] == 3
@pytest.mark.skipif(not PY3, reason='Only necessary on Python3')
def test_not_ascii():
"""Make sure that the systems preferred encoding is not `ascii`.
Otherwise `click` is raising a RuntimeError for Python3. For a detailed
description of this very problem please consult the following gist:
https://gist.github.com/hackebrot/937245251887197ef542
This test also checks that `tox.ini` explicitly copies the according
system environment variables to the test environments.
"""
try:
preferred_encoding = locale.getpreferredencoding()
fs_enc = codecs.lookup(preferred_encoding).name
except Exception:
fs_enc = 'ascii'
assert fs_enc != 'ascii'
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