generate unicode filename

instead of shipping it in files

since git on OS X has unicode normalization issues

IPython/nbconvert/tests/base.py

@@ -13,13 +13,16 b' Contains base test class for nbconvert'
 # Imports
 #-----------------------------------------------------------------------------
 
+import io
 import os
 import glob
 import shutil
 import unittest
 
 import IPython
+from IPython.nbformat import current
 from IPython.utils.tempdir import TemporaryWorkingDirectory
+from IPython.utils.path import get_ipython_package_dir
 from IPython.utils.process import get_output_error_code
 from IPython.testing.tools import get_ipython_cmd
 
@@ -111,6 +114,12 b' class TestsBase(unittest.TestCase):'
         #Return directory handler
         return temp_dir
 
+    def create_empty_notebook(self, path):
+        nb = current.new_notebook()
+        nb.worksheets.append(current.new_worksheet())
+        with io.open(path, 'w', encoding='utf-8') as f:
+            current.write(nb, f, 'json')
+
 
     def copy_files_to(self, copy_filenames, dest='.'):
         "Copy test files into the destination directory"
@@ -130,7 +139,7 b' class TestsBase(unittest.TestCase):'
         
         #Build a path using the IPython directory and the relative path we just
         #found.
-        path = IPython.__path__[0]
+        path = get_ipython_package_dir()
         for name in names:
             path = os.path.join(path, name)
         return path

IPython/nbconvert/tests/test_nbconvertapp.py

@@ -189,7 +189,8 b' class TestNbConvertApp(TestsBase):'
         """
         Can notebook names include accents?
         """
-        with self.create_temp_cwd(['nb*.ipynb']):
+        with self.create_temp_cwd():
+            self.create_empty_notebook(u'nb1_análisis.ipynb')
             self.call('nbconvert --log-level 0 --to python nb1_*')
             assert os.path.isfile(u'nb1_análisis.py')
     
@@ -199,7 +200,8 b' class TestNbConvertApp(TestsBase):'
         """
         Generate PDFs if notebooks have an accent in their name?
         """
-        with self.create_temp_cwd(['nb*.ipynb']):
+        with self.create_temp_cwd():
+            self.create_empty_notebook(u'nb1_análisis.ipynb')
             o,e = self.call('nbconvert --log-level 0 --to latex '
                             '"nb1_*" --post PDF '
                             '--PDFPostProcessor.verbose=True')