don't compare empty lines (stupid pandoc)

tests/test_references.py

@@ -1,47 +1,51
 import io
 import nose.tools as nt
 from nose.tools import nottest
 from converters import (
     ConverterLaTeX, ConverterMarkdown, ConverterPy, ConverterHTML
 )
 
+@nottest
+def cleanfile(stn):
+    return filter(None, map(unicode.strip, stn.split('\n')))
+
 
 def test_evens():
     ######
     # for now, we don't need to really run inkscape to extract svg
     # from file, on unix, for test, we monkeypathc it to 'true'
     # which does not fail as doing anything.
     ####
     ConverterLaTeX.inkscape = 'true'
 
     # commenting rst for now as travis build
     # fail because of pandoc version.
     converters = [
                  #(ConverterRST, 'rst'),
                   (ConverterMarkdown, 'md'),
                   (ConverterLaTeX, 'tex'),
                   (ConverterPy, 'py'),
                   (ConverterHTML, 'html')
                 ]
     reflist = [
             'tests/ipynbref/IntroNumPy.orig'
             ]
     for root in reflist:
         for conv, ext in converters:
             yield test_conversion, conv, root + '.ipynb', root + '.' + ext
 
 
 @nottest
 def compfiles(stra, strb):
-    nt.assert_equal(map(unicode.strip, stra.split('\n')),
-                    map(unicode.strip, strb.split('\n')))
+    nt.assert_equal(cleanfile(stra),
+                    cleanfile(strb))
 
 
 @nottest
 def test_conversion(ConverterClass, ipynb, ref_file):
     converter = ConverterClass(ipynb)
     converter.read()
     cv = converter.convert()
     with io.open(ref_file) as ref:
         value = ref.read()
         compfiles(cv, value)