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    Hello,<br>
    <br>
    You may remember that I posted recently about using Tox to run our
    unittests against both Python 2.6 and Python 2.7. <br>
    <br>
    That now seems to be working, but I'm running into difficulty with
    the @unittest.expectedFailure decorator. It appears to be working as
    expected in Python 2.7, but not in Python 2.6 using unittest2.<br>
    <br>
    My relevant code is:<br>
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    <pre style="background-color:#ffffff;color:#000000;font-family:'DejaVu Sans Mono';font-size:9.0pt;"><span style="color:#000080;font-weight:bold;">import </span>sys

<span style="color:#000080;font-weight:bold;">if </span>sys.version_info &lt; (<span style="color:#0000ff;">2</span>, <span style="color:#0000ff;">7</span>):
    <span style="color:#000080;font-weight:bold;">import </span>unittest2 <span style="color:#000080;font-weight:bold;">as </span>unittest
<span style="color:#000080;font-weight:bold;">else</span>:
    <span style="color:#000080;font-weight:bold;">import </span><span style="background-color:#e4e4ff;">unittest

</span><meta http-equiv="content-type" content="text/html; charset=utf-8"><meta http-equiv="content-type" content="text/html; charset=utf-8">@<span style="color:#0000b2;">unittest.expectedFailure
</span><span style="color:#000080;font-weight:bold;">def </span>test_expected_failure(<span style="color:#94558d;">self</span>):
    <span style="color:#808080;font-style:italic;">"""Test behaviour of expectedFailure"""
</span><span style="color:#808080;font-style:italic;">    </span><span style="color:#94558d;">self</span>.assertEqual(<span style="color:#0000ff;">1</span>, <span style="color:#0000ff;">2</span>)<pre style="background-color:#ffffff;color:#000000;font-family:'DejaVu Sans Mono';font-size:9.0pt;"></pre>
</pre>
    When I run this, it gives an expected failure on Python 2.7, but an
    error on Python 2.6.<br>
    $ tox -- -s testing.unit.test_diffdir.DDTest.test_expected_failure<br>
    [...]<br>
    Test behaviour of expectedFailure ... FAIL<br>
    <br>
======================================================================<br>
    FAIL: Test behaviour of expectedFailure<br>
----------------------------------------------------------------------<br>
    Traceback (most recent call last):<br>
      File
    "/home/aaron/Programming/duplicity_fix_tests/testing/unit/test_diffdir.py",
    line 139, in test_expected_failure<br>
        self.assertEqual(1, 2)<br>
    AssertionError: 1 != 2<br>
    <br>
----------------------------------------------------------------------<br>
    Ran 1 test in 0.124s<br>
    <br>
    FAILED (failures=1)<br>
    <br>
    [...]<br>
    <br>
    Test behaviour of expectedFailure ... expected failure<br>
    <br>
----------------------------------------------------------------------<br>
    Ran 1 test in 0.126s<br>
    <br>
    OK (expected failures=1)<br>
    ___________________________________ summary
    ____________________________________<br>
    ERROR:   py26: commands failed<br>
      py27: commands succeeded<br>
    <br>
    <br>
    I thought that the intention was that these two modules acted in the
    same way. Have I done something incorrectly, or have I misunderstood
    something?<br>
    <br>
    Many thanks,<br>
    <br>
    Aaron<br>
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