Added test

IPython/nbconvert/preprocessors/tests/test_coalescestreams.py

@@ -1,60 +1,72 b''
 """
 Module with tests for the coalescestreams preprocessor
 """
 
 #-----------------------------------------------------------------------------
 # 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 IPython.nbformat import current as nbformat
 
 from .base import PreprocessorTestsBase
 from ..coalescestreams import coalesce_streams
 
 
 #-----------------------------------------------------------------------------
 # Class
 #-----------------------------------------------------------------------------
-
 class TestCoalesceStreams(PreprocessorTestsBase):
     """Contains test functions for coalescestreams.py"""
 
     def test_coalesce_streams(self):
         """coalesce_streams preprocessor output test"""
         nb = self.build_notebook()
         res = self.build_resources()
         nb, res = coalesce_streams(nb, res)
         outputs = nb.worksheets[0].cells[0].outputs
         self.assertEqual(outputs[0].text, "a")
         self.assertEqual(outputs[1].output_type, "text")
         self.assertEqual(outputs[2].text, "cd")
         self.assertEqual(outputs[3].text, "ef")
 
-
     def test_coalesce_sequenced_streams(self):
         """Can the coalesce streams preprocessor merge a sequence of streams?"""
-
         outputs = [nbformat.new_output(output_type="stream", stream="stdout", output_text="0"),
                    nbformat.new_output(output_type="stream", stream="stdout", output_text="1"),
                    nbformat.new_output(output_type="stream", stream="stdout", output_text="2"),
                    nbformat.new_output(output_type="stream", stream="stdout", output_text="3"),
                    nbformat.new_output(output_type="stream", stream="stdout", output_text="4"),
                    nbformat.new_output(output_type="stream", stream="stdout", output_text="5"),
                    nbformat.new_output(output_type="stream", stream="stdout", output_text="6"),
                    nbformat.new_output(output_type="stream", stream="stdout", output_text="7")]
         cells=[nbformat.new_code_cell(input="# None", prompt_number=1,outputs=outputs)]
         worksheets = [nbformat.new_worksheet(name="worksheet1", cells=cells)]
 
         nb = nbformat.new_notebook(name="notebook1", worksheets=worksheets)
         res = self.build_resources()
         nb, res = coalesce_streams(nb, res)
         outputs = nb.worksheets[0].cells[0].outputs
         self.assertEqual(outputs[0].text, u'01234567')
+
+    def test_coalesce_replace_streams(self):
+        """Are \\r characters handled?"""
+        outputs = [nbformat.new_output(output_type="stream", stream="stdout", output_text="z"),
+                   nbformat.new_output(output_type="stream", stream="stdout", output_text="\ra"),
+                   nbformat.new_output(output_type="stream", stream="stdout", output_text="\nz\rb"),
+                   nbformat.new_output(output_type="stream", stream="stdout", output_text="\nz"),
+                   nbformat.new_output(output_type="stream", stream="stdout", output_text="\rc")]
+        cells=[nbformat.new_code_cell(input="# None", prompt_number=1,outputs=outputs)]
+        worksheets = [nbformat.new_worksheet(name="worksheet1", cells=cells)]
+
+        nb = nbformat.new_notebook(name="notebook1", worksheets=worksheets)
+        res = self.build_resources()
+        nb, res = coalesce_streams(nb, res)
+        outputs = nb.worksheets[0].cells[0].outputs
+        self.assertEqual(outputs[0].text, u'a\nb\nc')