Fixed test and add fragments to the list of resets.

IPython/nbconvert/preprocessors/revealhelp.py

@@ -65,8 +65,8 b' class RevealHelpPreprocessor(Preprocessor):'
                         worksheet.cells[index + i].metadata.frag_number = index
                         i += 1
                 #Restart the slide_helper when the cell status is changed
-                #to "do nothing".
-                if cell.metadata.slide_type in ['-']:
+                #to other types.
+                if cell.metadata.slide_type in ['-', 'skip', 'notes', 'fragment']:
                     worksheet.cells[index - 1].metadata.slide_helper = '-'
 
         if not isinstance(resources['reveal'], dict):

IPython/nbconvert/preprocessors/tests/test_revealhelp.py

@@ -28,11 +28,11 b' class Testrevealhelp(PreprocessorTestsBase):'
     """Contains test functions for revealhelp.py"""
 
     def build_notebook(self):
-        """Build a reveal slides notebook in memory for use with tests.  
+        """Build a reveal slides notebook in memory for use with tests.
         Overrides base in PreprocessorTestsBase"""
 
         outputs = [nbformat.new_output(output_type="stream", stream="stdout", output_text="a")]
-        
+
         slide_metadata = {'slideshow' : {'slide_type': 'slide'}}
         subslide_metadata = {'slideshow' : {'slide_type': 'subslide'}}
 
@@ -56,7 +56,7 b' class Testrevealhelp(PreprocessorTestsBase):'
     def test_constructor(self):
         """Can a RevealHelpPreprocessor be constructed?"""
         self.build_preprocessor()
-    
+
 
     def test_reveal_attribute(self):
         """Make sure the reveal url_prefix resources is set"""
@@ -82,7 +82,8 b' class Testrevealhelp(PreprocessorTestsBase):'
 
         # Make sure slide end is only applied to the cells preceeding slide 
         # cells.
-        assert 'slide_helper' not in cells[1].metadata
+        assert 'slide_helper' in cells[1].metadata
+        self.assertEqual(cells[1].metadata['slide_helper'], '-')
 
         # Verify 'slide-end'
         assert 'slide_helper' in cells[0].metadata