upstream/ipython Files · IPython/utils/tests/test_tempdir.py

Backport PR : fix n^2 performance issue in coalesce_streams preprocessor...

Backport PR : fix n^2 performance issue in coalesce_streams preprocessor for n consecutive stream outputs, `\r` fix would be compiled n times, and applied to each ith output (n-i) times. - move pattern to module level - apply replacement after coalescing outputs An example notebook from nbviewer with ~1k outputs that was taking 90 seconds to render now takes 3 seconds.

Paul Ivanov - - Load All Authors

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             test_tempdir.py
        
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      #-----------------------------------------------------------------------------

      #  Copyright (C) 2012-  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.

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

      import os

      from IPython.utils.tempdir import NamedFileInTemporaryDirectory

      from IPython.utils.tempdir import TemporaryWorkingDirectory

      def test_named_file_in_temporary_directory():

          with NamedFileInTemporaryDirectory('filename') as file:

              name = file.name

              assert not file.closed

              assert os.path.exists(name)

              file.write(b'test')

          assert file.closed

          assert not os.path.exists(name)

      def test_temporary_working_directory():

          with TemporaryWorkingDirectory() as dir:

              assert os.path.exists(dir)

              assert os.path.realpath(os.curdir) == os.path.realpath(dir)

          assert not os.path.exists(dir)

          assert os.path.abspath(os.curdir) != dir

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				#-----------------------------------------------------------------------------
				# Copyright (C) 2012- 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.
				#-----------------------------------------------------------------------------

				import os

				from IPython.utils.tempdir import NamedFileInTemporaryDirectory
				from IPython.utils.tempdir import TemporaryWorkingDirectory


				def test_named_file_in_temporary_directory():
				with NamedFileInTemporaryDirectory('filename') as file:
				name = file.name
				assert not file.closed
				assert os.path.exists(name)
				file.write(b'test')
				assert file.closed
				assert not os.path.exists(name)

				def test_temporary_working_directory():
				with TemporaryWorkingDirectory() as dir:
				assert os.path.exists(dir)
				assert os.path.realpath(os.curdir) == os.path.realpath(dir)
				assert not os.path.exists(dir)
				assert os.path.abspath(os.curdir) != dir