upstream/ipython Files · IPython/nbconvert/exporters/tests/test_pdf.py

Fix race condition in javascript kernel message processing...

Fix race condition in javascript kernel message processing Because the binary messages are now deserialized using the asynchronous FileReader API, we need to have some way to force the messages to still be processed in the order they are received. This patch implements a simple processing queue using promises.

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             test_pdf.py
        
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      """Tests for PDF export"""

      # Copyright (c) IPython Development Team.

      # Distributed under the terms of the Modified BSD License.

      import logging

      import os

      from IPython.testing import decorators as dec

      from .base import ExportersTestsBase

      from ..pdf import PDFExporter

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

      # Class

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

      class TestPDF(ExportersTestsBase):

          """Test PDF export"""

          exporter_class = PDFExporter

          def test_constructor(self):

              """Can a PDFExporter be constructed?"""

              self.exporter_class()

          @dec.onlyif_cmds_exist('pdflatex')

          @dec.onlyif_cmds_exist('pandoc')

          def test_export(self):

              """Smoke test PDFExporter"""

              (output, resources) = self.exporter_class(latex_count=1).from_filename(self._get_notebook())

              self.assertIsInstance(output, bytes)

              assert len(output) > 0

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				"""Tests for PDF export"""

				# Copyright (c) IPython Development Team.
				# Distributed under the terms of the Modified BSD License.

				import logging
				import os

				from IPython.testing import decorators as dec

				from .base import ExportersTestsBase
				from ..pdf import PDFExporter


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

				class TestPDF(ExportersTestsBase):
				"""Test PDF export"""

				exporter_class = PDFExporter

				def test_constructor(self):
				"""Can a PDFExporter be constructed?"""
				self.exporter_class()


				@dec.onlyif_cmds_exist('pdflatex')
				@dec.onlyif_cmds_exist('pandoc')
				def test_export(self):
				"""Smoke test PDFExporter"""
				(output, resources) = self.exporter_class(latex_count=1).from_filename(self._get_notebook())
				self.assertIsInstance(output, bytes)
				assert len(output) > 0