upstream/ipython Files · IPython/nbformat/v3/tests/formattest.py

Merge pull request from pankajp/qt-console-freeze-on-output-clip...

Merge pull request from pankajp/qt-console-freeze-on-output-clip Prevent qtconsole frontend freeze on lots of output. The output from the kernel is now clipped to last buffer_size before displaying and a timer is used to flush the pending output text instead of attempting to display text on every stream output from kernel. The timer interval is adjusted based on actual time taken to append a screenful of text to widget. This throttles the widget repaints and avoids choking the Qt event loop leaving time to handle other Qt events.

Bradley M. Froehle - - Load All Authors

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             formattest.py
        
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             / IPython / nbformat / v3 / tests / formattest.py
          
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      # -*- coding: utf8 -*-

      import io

      import os

      import shutil

      import tempfile

      pjoin = os.path.join

      from ..nbbase import (

          NotebookNode,

          new_code_cell, new_text_cell, new_worksheet, new_notebook

      )

      from ..nbpy import reads, writes, read, write

      from .nbexamples import nb0, nb0_py

      def open_utf8(fname, mode):

          return io.open(fname, mode=mode, encoding='utf-8')

      class NBFormatTest:

          """Mixin for writing notebook format tests"""

          # override with appropriate values in subclasses

          nb0_ref = None

          ext = None

          mod = None

          def setUp(self):

              self.wd = tempfile.mkdtemp()

          def tearDown(self):

              shutil.rmtree(self.wd)

          def assertNBEquals(self, nba, nbb):

              self.assertEqual(nba, nbb)

          def test_writes(self):

              s = self.mod.writes(nb0)

              if self.nb0_ref:

                  self.assertEqual(s, self.nb0_ref)

          def test_reads(self):

              s = self.mod.writes(nb0)

              nb = self.mod.reads(s)

          def test_roundtrip(self):

              s = self.mod.writes(nb0)

              self.assertNBEquals(self.mod.reads(s),nb0)

          def test_write_file(self):

              with open_utf8(pjoin(self.wd, "nb0.%s" % self.ext), 'w') as f:

                  self.mod.write(nb0, f)

          def test_read_file(self):

              with open_utf8(pjoin(self.wd, "nb0.%s" % self.ext), 'w') as f:

                  self.mod.write(nb0, f)

              with open_utf8(pjoin(self.wd, "nb0.%s" % self.ext), 'r') as f:

                  nb = self.mod.read(f)

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				# -- coding: utf8 --
				import io
				import os
				import shutil
				import tempfile

				pjoin = os.path.join

				from ..nbbase import (
				NotebookNode,
				new_code_cell, new_text_cell, new_worksheet, new_notebook
				)

				from ..nbpy import reads, writes, read, write
				from .nbexamples import nb0, nb0_py


				def open_utf8(fname, mode):
				return io.open(fname, mode=mode, encoding='utf-8')

				class NBFormatTest:
				"""Mixin for writing notebook format tests"""

				# override with appropriate values in subclasses
				nb0_ref = None
				ext = None
				mod = None

				def setUp(self):
				self.wd = tempfile.mkdtemp()

				def tearDown(self):
				shutil.rmtree(self.wd)

				def assertNBEquals(self, nba, nbb):
				self.assertEqual(nba, nbb)

				def test_writes(self):
				s = self.mod.writes(nb0)
				if self.nb0_ref:
				self.assertEqual(s, self.nb0_ref)

				def test_reads(self):
				s = self.mod.writes(nb0)
				nb = self.mod.reads(s)

				def test_roundtrip(self):
				s = self.mod.writes(nb0)
				self.assertNBEquals(self.mod.reads(s),nb0)

				def test_write_file(self):
				with open_utf8(pjoin(self.wd, "nb0.%s" % self.ext), 'w') as f:
				self.mod.write(nb0, f)

				def test_read_file(self):
				with open_utf8(pjoin(self.wd, "nb0.%s" % self.ext), 'w') as f:
				self.mod.write(nb0, f)

				with open_utf8(pjoin(self.wd, "nb0.%s" % self.ext), 'r') as f:
				nb = self.mod.read(f)