upstream/ipython Files · IPython/nbconvert/writers/tests/test_debug.py

Handle some tricky Comm lifecycle issues...

Handle some tricky Comm lifecycle issues * If the comm was a primary comm, but there was an error opening it, _closed was False, which is wrong * If Comm.close() was called, but an error happened, it still appeared to be open This change makes the _closed attribute more conservative. If _closed is False, the comm is definitely open for messages. If _closed is True, we either didn't initialize correctly, or we tried to close at some point.

Thomas Kluyver - - Load All Authors

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             test_debug.py
        
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      """

      Module with tests for debug

      """

      #-----------------------------------------------------------------------------

      # 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

      #-----------------------------------------------------------------------------

      import sys

      from ...tests.base import TestsBase

      from ..debug import DebugWriter

      from IPython.utils.py3compat import PY3

      if PY3:

          from io import StringIO

      else:

          from StringIO import StringIO

      #-----------------------------------------------------------------------------

      # Class

      #-----------------------------------------------------------------------------

      class TestDebug(TestsBase):

          """Contains test functions for debug.py"""

          def test_output(self):

              """Test debug writer output."""

              # Capture the stdout.  Remember original.

              stdout = sys.stdout

              stream = StringIO()

              sys.stdout = stream

              # Create stdout writer, get output

              writer = DebugWriter()

              writer.write('aaa', {'outputs': {'bbb': 'ccc'}})

              output = stream.getvalue()

              # Check output.  Make sure resources dictionary is dumped, but nothing

              # else.

              assert 'aaa' not in output

              assert 'bbb' in output

              assert 'ccc' in output

              # Revert stdout

              sys.stdout = stdout

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				"""
				Module with tests for debug
				"""

				#-----------------------------------------------------------------------------
				# 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
				#-----------------------------------------------------------------------------

				import sys

				from ...tests.base import TestsBase
				from ..debug import DebugWriter
				from IPython.utils.py3compat import PY3

				if PY3:
				from io import StringIO
				else:
				from StringIO import StringIO


				#-----------------------------------------------------------------------------
				# Class
				#-----------------------------------------------------------------------------

				class TestDebug(TestsBase):
				"""Contains test functions for debug.py"""

				def test_output(self):
				"""Test debug writer output."""

				# Capture the stdout. Remember original.
				stdout = sys.stdout
				stream = StringIO()
				sys.stdout = stream

				# Create stdout writer, get output
				writer = DebugWriter()
				writer.write('aaa', {'outputs': {'bbb': 'ccc'}})
				output = stream.getvalue()

				# Check output. Make sure resources dictionary is dumped, but nothing
				# else.
				assert 'aaa' not in output
				assert 'bbb' in output
				assert 'ccc' in output

				# Revert stdout
				sys.stdout = stdout