New issue 678: pytest cannot deal with utf-8 encoded __repr__ of a custom object https://bitbucket.org/hpk42/pytest/issue/678/pytest-cannot-deal-with-utf-8-encoded
Roman Bolshakov: I have a test module which does use beautiful soup to parse some test data. I added an assertion to check that a variable I assigned result of parsing to is an instance of unicode type. I had a bug in my code, a list with various objects got returned instead of the expected unicode string, the assertion fired. Besides, I got a totally unexpected UnicodeDecodeError in pytest. Here's how it could be reproduced: https://gist.github.com/roolebo/ca816a26cdc0a8b17226 It turned out that beautiful soup returns utf-8 encoded string as a result of __repr__ invocation on Tag object. The gist above could be nailed down without beautiful soup dependency: ``` #!python # coding=utf-8 def test_unicode_repr(): class Foo(object): a = 1 def __repr__(self): return '<b class="boldest">Б</b>' f = Foo() assert 0 == f.a ``` ``` #!python lines = ['assert 0 == 1', '{1 = <b class="boldest">\xd0</b>.a', '}'] def _format_lines(lines): """Format the individual lines This will replace the '{', '}' and '~' characters of our mini formatting language with the proper 'where ...', 'and ...' and ' + ...' text, taking care of indentation along the way. Return a list of formatted lines. """ result = lines[:1] stack = [0] stackcnt = [0] for line in lines[1:]: if line.startswith('{'): if stackcnt[-1]: s = u('and ') else: s = u('where ') stack.append(len(result)) stackcnt[-1] += 1 stackcnt.append(0) > result.append(u(' +') + u(' ')*(len(stack)-1) + s + line[1:]) E UnicodeDecodeError: 'ascii' codec can't decode byte 0xd0 in position 23: ordinal not in range(128) ../venv/lib/python2.7/site-packages/_pytest/assertion/util.py:104: UnicodeDecodeError ``` _______________________________________________ pytest-commit mailing list pytest-commit@python.org https://mail.python.org/mailman/listinfo/pytest-commit
