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

Remove EventManager reset methods, because they violate encapsulation....

Remove EventManager reset methods, because they violate encapsulation. The whole idea of the EventManager is that you can register hooks without worrying about what hooks other pieces of code might be registering. The reset methods violate this separation of concerns, since they will blow away everyone else's hooks too. (See gh-6680 for an example of this breaking things.) Since there is never any safe way to use them, we simply remove them entirely.

Bradley M. Froehle - - Load All Authors

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             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)