fix more tests that fail if pandoc not installed

IPython/nbconvert/exporters/tests/test_slides.py

@@ -1,47 +1,50 b''
 """
 Module with tests for slides.py
 """
 
 #-----------------------------------------------------------------------------
 # Copyright (c) 2013, the IPython Development Team.
 #
 # Distributed under the terms of the Modified BSD License.
 #
 # The full license is in the file COPYING.txt, distributed with this software.
 #-----------------------------------------------------------------------------
 
 #-----------------------------------------------------------------------------
 # Imports
 #-----------------------------------------------------------------------------
 
 from .base import ExportersTestsBase
 from ..slides import SlidesExporter
+from IPython.testing.decorators import onlyif_cmds_exist
 
 #-----------------------------------------------------------------------------
 # Class
 #-----------------------------------------------------------------------------
 
 class TestSlidesExporter(ExportersTestsBase):
     """Contains test functions for slides.py"""
 
     def test_constructor(self):
         """
         Can a SlidesExporter be constructed?
         """
         SlidesExporter()
 
 
+    @onlyif_cmds_exist('pandoc')
     def test_export(self):
         """
         Can a SlidesExporter export something?
         """
         (output, resources) = SlidesExporter().from_filename(self._get_notebook())
         assert len(output) > 0
 
 
+    @onlyif_cmds_exist('pandoc')
     def test_export_reveal(self):
         """
         Can a SlidesExporter export using the 'reveal' template?
         """
         (output, resources) = SlidesExporter(template='reveal').from_filename(self._get_notebook())
         assert len(output) > 0