DocTestMatches error when 'actual' is unicode

[Ian Booth]

When TestCase.assertThat is invoked with a unicode string and a DocTestMatches instance, the _with_nl() call made by the DocTestMatches.match() method fails if the argument 'actual' is a unicode string.

class MyTestCase(TestCase)
  def myTest(self):
     foo = u"foo\u2026"
    self.assertThat(foo, DocTestMatches(foo))

Trackback:

  File "/home/ian/projects/lp-sourcedeps/eggs/testtools-0.9.10-py2.6.egg/testtools/testcase.py", line 341, in assertThat
    mismatch = matcher.match(matchee)
  File "/home/ian/projects/lp-sourcedeps/eggs/testtools-0.9.10-py2.6.egg/testtools/matchers.py", line 175, in match
    with_nl = self._with_nl(actual)
  File "/home/ian/projects/lp-sourcedeps/eggs/testtools-0.9.10-py2.6.egg/testtools/matchers.py", line 169, in _with_nl
    result = str(actual)
UnicodeEncodeError: 'ascii' codec can't encode character u'\u2026' in position 3: ordinal not in range(128)
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[Jonathan Lange (jml)]

Thanks. Will try to fix this soon.

[Martin Packman (gz)]

This is a distinct issue from bug 672056 I believe, though one aspect of that, bug 804122, also interferes with the fix here.

An additional complication on some Python versions is bug 804127, and the ones without that problem have a dodgy doctest._indent method that encodes any unicode given in output_difference.