Added a cwd test

IPython/nbconvert/tests/files/hello.py

@@ -0,0 +1,7 b''
+from IPython.nbconvert.writers.base import WriterBase
+
+class HelloWriter(WriterBase):
+
+    def write(self, output, resources, notebook_name=None, **kw):
+        with open('hello.txt', 'w') as outfile:
+            outfile.write('hello world')

IPython/nbconvert/tests/test_nbconvertapp.py

@@ -1,202 +1,211 b''
 # -*- coding: utf-8 -*- 
 """Test 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 glob
 import sys
 
 from .base import TestsBase
 
 import IPython.testing.tools as tt
 from IPython.testing import decorators as dec
 
 #-----------------------------------------------------------------------------
 # Classes and functions
 #-----------------------------------------------------------------------------
 
 class TestNbConvertApp(TestsBase):
     """Collection of NbConvertApp tests"""
 
 
     def test_notebook_help(self):
         """Will help show if no notebooks are specified?"""
         with self.create_temp_cwd():
             out, err = self.call('nbconvert --log-level 0', ignore_return_code=True)
             self.assertIn("see '--help-all'", out)
     
     def test_help_output(self):
         """ipython nbconvert --help-all works"""
         tt.help_all_output_test('nbconvert')
 
     def test_glob(self):
         """
         Do search patterns work for notebook names?
         """
         with self.create_temp_cwd(['notebook*.ipynb']):
             self.call('nbconvert --to python *.ipynb --log-level 0')
             assert os.path.isfile('notebook1.py')
             assert os.path.isfile('notebook2.py')
 
 
     def test_glob_subdir(self):
         """
         Do search patterns work for subdirectory notebook names?
         """
         with self.create_temp_cwd():
             self.copy_files_to(['notebook*.ipynb'], 'subdir/')
             self.call('nbconvert --to python --log-level 0 ' + 
                       os.path.join('subdir', '*.ipynb'))
             assert os.path.isfile('notebook1.py')
             assert os.path.isfile('notebook2.py')
 
 
     def test_explicit(self):
         """
         Do explicit notebook names work?
         """
         with self.create_temp_cwd(['notebook*.ipynb']):
             self.call('nbconvert --log-level 0 --to python notebook2')
             assert not os.path.isfile('notebook1.py')
             assert os.path.isfile('notebook2.py')
 
 
     @dec.onlyif_cmds_exist('pdflatex')
     @dec.onlyif_cmds_exist('pandoc')
     def test_filename_spaces(self):
         """
         Generate PDFs with graphics if notebooks have spaces in the name?
         """
         with self.create_temp_cwd(['notebook2.ipynb']):
             os.rename('notebook2.ipynb', 'notebook with spaces.ipynb')
             self.call('nbconvert --log-level 0 --to latex '
                             '"notebook with spaces" --post PDF '
                             '--PDFPostProcessor.verbose=True')
             assert os.path.isfile('notebook with spaces.tex')
             assert os.path.isdir('notebook with spaces_files')
             assert os.path.isfile('notebook with spaces.pdf')
 
     @dec.onlyif_cmds_exist('pdflatex')
     @dec.onlyif_cmds_exist('pandoc')
     def test_post_processor(self):
         """
         Do post processors work?
         """
         with self.create_temp_cwd(['notebook1.ipynb']):
             self.call('nbconvert --log-level 0 --to latex notebook1 '
                       '--post PDF --PDFPostProcessor.verbose=True')
             assert os.path.isfile('notebook1.tex')
             assert os.path.isfile('notebook1.pdf')
 
     @dec.onlyif_cmds_exist('pandoc')
     def test_spurious_cr(self):
         """Check for extra CR characters"""
         with self.create_temp_cwd(['notebook2.ipynb']):
             self.call('nbconvert --log-level 0 --to latex notebook2')
             assert os.path.isfile('notebook2.tex')
             with open('notebook2.tex') as f:
                 tex = f.read()
             self.call('nbconvert --log-level 0 --to html notebook2')
             assert os.path.isfile('notebook2.html')
             with open('notebook2.html') as f:
                 html = f.read()
         self.assertEqual(tex.count('\r'), tex.count('\r\n'))
         self.assertEqual(html.count('\r'), html.count('\r\n'))
 
     @dec.onlyif_cmds_exist('pandoc')
     def test_png_base64_html_ok(self):
         """Is embedded png data well formed in HTML?"""
         with self.create_temp_cwd(['notebook2.ipynb']):
             self.call('nbconvert --log-level 0 --to HTML '
                       'notebook2.ipynb --template full')
             assert os.path.isfile('notebook2.html')
             with open('notebook2.html') as f:
                 assert "data:image/png;base64,b'" not in f.read()
 
     @dec.onlyif_cmds_exist('pandoc')
     def test_template(self):
         """
         Do export templates work?
         """
         with self.create_temp_cwd(['notebook2.ipynb']):
             self.call('nbconvert --log-level 0 --to slides '  
                       'notebook2.ipynb')
             assert os.path.isfile('notebook2.slides.html')
             with open('notebook2.slides.html') as f:
                 assert '/reveal.css' in f.read()
 
 
     def test_glob_explicit(self):
         """
         Can a search pattern be used along with matching explicit notebook names?
         """
         with self.create_temp_cwd(['notebook*.ipynb']):
             self.call('nbconvert --log-level 0 --to python '
                       '*.ipynb notebook1.ipynb notebook2.ipynb')
             assert os.path.isfile('notebook1.py')
             assert os.path.isfile('notebook2.py')
 
 
     def test_explicit_glob(self):
         """
         Can explicit notebook names be used and then a matching search pattern?
         """
         with self.create_temp_cwd(['notebook*.ipynb']):
             self.call('nbconvert --log-level 0 --to=python '
                       'notebook1.ipynb notebook2.ipynb *.ipynb')
             assert os.path.isfile('notebook1.py')
             assert os.path.isfile('notebook2.py')
 
 
     def test_default_config(self):
         """
         Does the default config work?
         """
         with self.create_temp_cwd(['notebook*.ipynb', 'ipython_nbconvert_config.py']):
             self.call('nbconvert --log-level 0')
             assert os.path.isfile('notebook1.py')
             assert not os.path.isfile('notebook2.py')
 
 
     def test_override_config(self):
         """
         Can the default config be overriden?
         """
         with self.create_temp_cwd(['notebook*.ipynb',
                                    'ipython_nbconvert_config.py',
                                    'override.py']):
             self.call('nbconvert --log-level 0 --config="override.py"')
             assert not os.path.isfile('notebook1.py')
             assert os.path.isfile('notebook2.py')
 
     def test_accents_in_filename(self):
         """
         Can notebook names include accents?
         """
         with self.create_temp_cwd():
             self.create_empty_notebook(u'nb1_análisis.ipynb')
             self.call('nbconvert --log-level 0 --to python nb1_*')
             assert os.path.isfile(u'nb1_análisis.py')
     
     @dec.onlyif_cmds_exist('pdflatex', 'pandoc')
     def test_filename_accent_pdf(self):
         """
         Generate PDFs if notebooks have an accent in their name?
         """
         with self.create_temp_cwd():
             self.create_empty_notebook(u'nb1_análisis.ipynb')
             self.call('nbconvert --log-level 0 --to latex '
                             '"nb1_*" --post PDF '
                             '--PDFPostProcessor.verbose=True')
             assert os.path.isfile(u'nb1_análisis.tex')
             assert os.path.isfile(u'nb1_análisis.pdf')
+
+    def test_cwd_plugin(self):
+        """
+        Verify that an extension in the cwd can be imported.
+        """
+        with self.create_temp_cwd(['hello.py']):
+            self.create_empty_notebook(u'empty.ipynb')
+            self.call('nbconvert empty --to html --NbConvertApp.writer_class=\'hello.HelloWriter\'')
+            assert os.path.isfile(u'hello.txt')