old_contents: #-----------------------------------------------------------------------------
  # 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 ..citation import citation2latex
  
  #-----------------------------------------------------------------------------
  # Tests
  #-----------------------------------------------------------------------------
  
  test_md = """
  # My Heading
  
  Lorem ipsum dolor sit amet, consectetur adipiscing elit. Phasellus ac magna non augue
  porttitor scelerisque ac id diam <cite data-cite="granger">Granger</cite>. Mauris elit
  velit, lobortis sed interdum at, vestibulum vitae libero <strong data-cite="fperez">Perez</strong>.
  Lorem ipsum dolor sit amet, consectetur adipiscing elit
  <em data-cite="takluyver">Thomas</em>. Quisque iaculis ligula ut ipsum mattis viverra.
  
  <p>Here is a plain paragraph that should be unaffected.</p>
  
  * One <cite data-cite="jdfreder">Jonathan</cite>.
  * Two <cite data-cite="carreau">Matthias</cite>.
  * Three <cite data-cite="ivanov">Paul</cite>.
  """
  
  test_md_parsed = """
  # My Heading
  
  Lorem ipsum dolor sit amet, consectetur adipiscing elit. Phasellus ac magna non augue
  porttitor scelerisque ac id diam \cite{granger}. Mauris elit
  velit, lobortis sed interdum at, vestibulum vitae libero \cite{fperez}.
  Lorem ipsum dolor sit amet, consectetur adipiscing elit
  \cite{takluyver}. Quisque iaculis ligula ut ipsum mattis viverra.
  
  <p>Here is a plain paragraph that should be unaffected.</p>
  
  * One \cite{jdfreder}.
  * Two \cite{carreau}.
  * Three \cite{ivanov}.
  """
  
  def test_citation2latex():
      """Are citations parsed properly?"""
      try:
          import lxml
      except ImportError:
          assert test_md == citation2latex(test_md) 
      else:
          assert test_md_parsed == citation2latex(test_md)
  
new_contents: #-----------------------------------------------------------------------------
  # 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 ..citation import citation2latex
  from nose.tools import assert_equal
  
  #-----------------------------------------------------------------------------
  # Tests
  #-----------------------------------------------------------------------------
  
  test_md = """
  # My Heading
  
  Lorem ipsum dolor sit amet, consectetur adipiscing elit. Phasellus ac magna non augue
  porttitor scelerisque ac id diam <cite data-cite="granger">Granger</cite>. Mauris elit
  velit, lobortis sed interdum at, vestibulum vitae libero <strong data-cite="fperez">Perez</strong>.
  Lorem ipsum dolor sit amet, consectetur adipiscing elit
  <em data-cite="takluyver">Thomas</em>. Quisque iaculis ligula ut ipsum mattis viverra.
  
  <p>Here is a plain paragraph that should be unaffected.</p>
  
  * One <cite data-cite="jdfreder">Jonathan</cite>.
  * Two <cite data-cite="carreau">Matthias</cite>.
  * Three <cite data-cite="ivanov">Paul</cite>.
  """
  
  test_md_parsed = """
  # My Heading
  
  Lorem ipsum dolor sit amet, consectetur adipiscing elit. Phasellus ac magna non augue
  porttitor scelerisque ac id diam \cite{granger}. Mauris elit
  velit, lobortis sed interdum at, vestibulum vitae libero \cite{fperez}.
  Lorem ipsum dolor sit amet, consectetur adipiscing elit
  \cite{takluyver}. Quisque iaculis ligula ut ipsum mattis viverra.
  
  <p>Here is a plain paragraph that should be unaffected.</p>
  
  * One \cite{jdfreder}.
  * Two \cite{carreau}.
  * Three \cite{ivanov}.
  """
  
  def test_citation2latex():
      """Are citations parsed properly?"""
      try:
          from lxml import html  #analysis:ignore
      except ImportError:
          assert_equal(test_md, citation2latex(test_md))
      else:
          assert_equal(test_md_parsed, citation2latex(test_md))
  
subject: Improve test for nbconvert citation filter.