StaticTest.test_unicode fails on codeanywhere

____________________________________________________________________________________________ StaticTest.test_unicode _____________________________________________________________________________________________
                                                                                                                                                                                                                  
self = <cherrypy.test.test_static.StaticTest testMethod=test_unicode>                                                                                                                                             
                                                                                                                                                                                                                  
    @pytest.mark.xfail(py27_on_windows, reason="#1544")                                                                                                                                                           
    def test_unicode(self):                                                                                                                                                                                       
>       with self.unicode_file():                                                                                                                                                                                 
                                                                                                                                                                                                                  
cherrypy/test/test_static.py:379:                                                                                                                                                                                 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
/usr/lib/python2.7/contextlib.py:17: in __enter__                                                                                                                                                                 
    return self.gen.next()                                                                                                                                                                                        
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
                                                                                                                                                                                                                  
    @staticmethod                                                                                                                                                                                                 
    @contextlib.contextmanager                                                                                                                                                                                    
    def unicode_file():                                                                                                                                                                                           
        filename = ntou('Слава Україні.html', 'utf-8')                                                                                                                                                            
        filepath = os.path.join(curdir, 'static', filename)                                                                                                                                                       
>       with io.open(filepath, 'w', encoding='utf-8') as strm:                                                                                                                                                    
E       UnicodeEncodeError: 'ascii' codec can't encode characters in position 43-47: ordinal not in range(128)                                                                                                    
                                                                                                                                                                                                                  
cherrypy/test/test_static.py:366: UnicodeEncodeError                                                                                                                                                              
===================================================================== 1 failed, 252 passed, 4 skipped, 2 xfailed, 5 xpassed in 80.13 seconds =====================================================================
ERROR: InvocationError: '/home/cabox/workspace/.tox/python/bin/pytest'                                                                                                                                            
____________________________________________________________________________________________________ summary _____________________________________________________________________________________________________
ERROR:   python: commands failed

Running tox on codeanywhere causes this test to fail.

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[jaraco]

Setting LC_LANG or LANG has no effect either.

[jaraco]

Non-support of fixtures is a known limitation of the unittest compatibility.