upstream/ipython Files · IPython/lib/tests/test_pylabtools.py

fix base64 code in nbformat.v2...

fix base64 code in nbformat.v2 base64 encoding functions were called, but had no effect, because the notebook already has everything as b64-encoded bytestrings, which are valid ascii literals on Python 2. However, the encode/decode logic is actually triggered on Python 3, revealing its errors. This fixes the base64 functions that had no effect to have their intended effect, but does not use them. Rather, it is assumed that bytes objects are already b64-encoded (and thus ascii-safe), which assumption was already made in Python 2.

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             test_pylabtools.py
        
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      """Tests for pylab tools module.

      """

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

      # Copyright (c) 2011, 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

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

      from __future__ import print_function

      # Stdlib imports

      # Third-party imports

      import matplotlib; matplotlib.use('Agg')

      import nose.tools as nt

      from matplotlib import pyplot as plt

      # Our own imports

      from IPython.testing import decorators as dec

      from .. import pylabtools as pt

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

      # Globals and constants

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

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

      # Local utilities

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

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

      # Classes and functions

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

      @dec.parametric

      def test_figure_to_svg():

          # simple empty-figure test

          fig = plt.figure()

          yield nt.assert_equal(pt.print_figure(fig, 'svg'), None)

          plt.close('all')

          # simple check for at least svg-looking output

          fig = plt.figure()

          ax = fig.add_subplot(1,1,1)

          ax.plot([1,2,3])

          plt.draw()

          svg = pt.print_figure(fig, 'svg')[:100].lower()

          yield nt.assert_true('doctype svg' in svg)

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				"""Tests for pylab tools module.
				"""
				#-----------------------------------------------------------------------------
				# Copyright (c) 2011, 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
				#-----------------------------------------------------------------------------
				from __future__ import print_function

				# Stdlib imports

				# Third-party imports
				import matplotlib; matplotlib.use('Agg')
				import nose.tools as nt

				from matplotlib import pyplot as plt

				# Our own imports
				from IPython.testing import decorators as dec
				from .. import pylabtools as pt

				#-----------------------------------------------------------------------------
				# Globals and constants
				#-----------------------------------------------------------------------------

				#-----------------------------------------------------------------------------
				# Local utilities
				#-----------------------------------------------------------------------------

				#-----------------------------------------------------------------------------
				# Classes and functions
				#-----------------------------------------------------------------------------

				@dec.parametric
				def test_figure_to_svg():
				# simple empty-figure test
				fig = plt.figure()
				yield nt.assert_equal(pt.print_figure(fig, 'svg'), None)

				plt.close('all')

				# simple check for at least svg-looking output
				fig = plt.figure()
				ax = fig.add_subplot(1,1,1)
				ax.plot([1,2,3])
				plt.draw()
				svg = pt.print_figure(fig, 'svg')[:100].lower()
				yield nt.assert_true('doctype svg' in svg)