Test for very large cells in latex

ipython#5616 (PDF from latex is hundreds of pages)

IPython/nbconvert/tests/test_latex.py

@@ -0,0 +1,64 b''
+# -*- coding: utf-8 -*- 
+"""Test Latex in NbConvertApp"""
+
+#-----------------------------------------------------------------------------
+#  Copyright (C) 2013 The IPython Development Team
+#
+#  Distributed under the terms of the BSD License.  The full license is in
+#  the file COPYING, distributed as part of this software.
+#-----------------------------------------------------------------------------
+
+#-----------------------------------------------------------------------------
+# Imports
+#-----------------------------------------------------------------------------
+
+import os
+import textwrap
+from IPython.nbformat import current
+
+from .base import TestsBase
+
+#-----------------------------------------------------------------------------
+# Classes and functions
+#-----------------------------------------------------------------------------
+
+class TestNbConvertLatex(TestsBase):
+    """Collection of NbConvert Latex tests"""
+
+    def test_very_long_cells(self):
+        """
+        Torture test that long cells do not cause issues
+        """
+        lorem_ipsum_text = textwrap.dedent("""\
+          Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec
+          dignissim, ipsum non facilisis tempus, dui felis tincidunt metus,
+          nec pulvinar neque odio eget risus. Nulla nisi lectus, cursus
+          suscipit interdum at, ultrices sit amet orci. Mauris facilisis
+          imperdiet elit, vitae scelerisque ipsum dignissim non. Integer
+          consequat malesuada neque sit amet pulvinar. Curabitur pretium
+          ut turpis eget aliquet. Maecenas sagittis lacus sed lectus
+          volutpat, eu adipiscing purus pulvinar. Maecenas consequat
+          luctus urna, eget cursus quam mollis a. Aliquam vitae ornare
+          erat, non hendrerit urna. Sed eu diam nec massa egestas pharetra
+          at nec tellus. Fusce feugiat lacus quis urna sollicitudin volutpat.
+          Quisque at sapien non nibh feugiat tempus ac ultricies purus.
+           """)
+        lorem_ipsum_text = lorem_ipsum_text.replace("\n"," ") + "\n\n"
+        large_lorem_ipsum_text = "".join([lorem_ipsum_text]*3000)
+
+        notebook_name = "lorem_ipsum_long.ipynb"
+        tex_name = "lorem_ipsum_long.tex"
+        with self.create_temp_cwd([]):
+            nb = current.new_notebook(
+                worksheets=[
+                    current.new_worksheet(cells=[
+                        current.new_text_cell('markdown',source=large_lorem_ipsum_text)
+                    ])
+                ]
+            )
+            with open(notebook_name, 'w') as f: current.write(nb, f, 'ipynb')
+            self.call('nbconvert --to latex --log-level 0 ' + 
+                      os.path.join(notebook_name))
+            assert os.path.isfile(tex_name)
+
+