Added latex transformer test

IPython/nbconvert/transformers/tests/test_latex.py

@@ -0,0 +1,43 b''
+"""
+Module with tests for the latex transformer
+"""
+
+#-----------------------------------------------------------------------------
+# 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 TransformerTestsBase
+from ..latex import LatexTransformer
+
+
+#-----------------------------------------------------------------------------
+# Class
+#-----------------------------------------------------------------------------
+
+class TestLatex(TransformerTestsBase):
+    """Contains test functions for latex.py"""
+
+    def test_constructor(self):
+        """Can a LatexTransformer be constructed?"""
+        transformer = LatexTransformer()
+        transformer.enabled = True
+        return transformer
+    
+
+    def test_output(self):
+        """Test the output of the LatexTransformer"""
+        nb, res = self.test_constructor()(self.build_notebook(), {})
+
+        # Make sure the code cell wasn't modified.
+        self.assertEqual(nb.worksheets[0].cells[0].input, '$ e $')
+
+        # Verify that the markdown cell was processed.
+        self.assertEqual(nb.worksheets[0].cells[1].source, '$e$')

IPython/nbconvert/transformers/tests/base.py

@@ -37,8 +37,8 b' class TransformerTestsBase(TestsBase):'
                    nbformat.new_output(output_type="stream", stream="stderr", output_text="f"),
                    nbformat.new_output(output_type="png", output_png='Zw==')] #g
         
-        cells=[nbformat.new_code_cell(input="test",
-            prompt_number=1,outputs=outputs)]
+        cells=[nbformat.new_code_cell(input="$ e $", prompt_number=1,outputs=outputs),
+               nbformat.new_text_cell('markdown', source="$ e $")]
         worksheets = [nbformat.new_worksheet(name="worksheet1", cells=cells)]
 
         return nbformat.new_notebook(name="notebook1", worksheets=worksheets)