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"""Tests for Latex exporter"""
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# Copyright (c) IPython Development Team.
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# Distributed under the terms of the Modified BSD License.
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import os.path
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import textwrap
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from .base import ExportersTestsBase
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from ..latex import LatexExporter
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from IPython.nbformat import current
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from IPython.testing.decorators import onlyif_cmds_exist
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from IPython.utils.tempdir import TemporaryDirectory
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class TestLatexExporter(ExportersTestsBase):
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"""Contains test functions for latex.py"""
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exporter_class = LatexExporter
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should_include_raw = ['latex']
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def test_constructor(self):
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"""
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Can a LatexExporter be constructed?
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"""
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LatexExporter()
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@onlyif_cmds_exist('pandoc')
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def test_export(self):
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"""
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Can a LatexExporter export something?
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"""
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(output, resources) = LatexExporter().from_filename(self._get_notebook())
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assert len(output) > 0
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@onlyif_cmds_exist('pandoc')
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def test_export_book(self):
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"""
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Can a LatexExporter export using 'report' template?
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"""
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(output, resources) = LatexExporter(template_file='report').from_filename(self._get_notebook())
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assert len(output) > 0
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@onlyif_cmds_exist('pandoc')
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def test_export_basic(self):
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"""
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Can a LatexExporter export using 'article' template?
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"""
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(output, resources) = LatexExporter(template_file='article').from_filename(self._get_notebook())
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assert len(output) > 0
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@onlyif_cmds_exist('pandoc')
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def test_export_article(self):
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"""
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Can a LatexExporter export using 'article' template?
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"""
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(output, resources) = LatexExporter(template_file='article').from_filename(self._get_notebook())
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assert len(output) > 0
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@onlyif_cmds_exist('pandoc')
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def test_very_long_cells(self):
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"""
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Torture test that long cells do not cause issues
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"""
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lorem_ipsum_text = textwrap.dedent("""\
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Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec
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dignissim, ipsum non facilisis tempus, dui felis tincidunt metus,
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nec pulvinar neque odio eget risus. Nulla nisi lectus, cursus
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suscipit interdum at, ultrices sit amet orci. Mauris facilisis
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imperdiet elit, vitae scelerisque ipsum dignissim non. Integer
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consequat malesuada neque sit amet pulvinar. Curabitur pretium
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ut turpis eget aliquet. Maecenas sagittis lacus sed lectus
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volutpat, eu adipiscing purus pulvinar. Maecenas consequat
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luctus urna, eget cursus quam mollis a. Aliquam vitae ornare
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erat, non hendrerit urna. Sed eu diam nec massa egestas pharetra
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at nec tellus. Fusce feugiat lacus quis urna sollicitudin volutpat.
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Quisque at sapien non nibh feugiat tempus ac ultricies purus.
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""")
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lorem_ipsum_text = lorem_ipsum_text.replace("\n"," ") + "\n\n"
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large_lorem_ipsum_text = "".join([lorem_ipsum_text]*3000)
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notebook_name = "lorem_ipsum_long.ipynb"
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nb = current.new_notebook(
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worksheets=[
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current.new_worksheet(cells=[
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current.new_text_cell('markdown',source=large_lorem_ipsum_text)
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])
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]
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)
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with TemporaryDirectory() as td:
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nbfile = os.path.join(td, notebook_name)
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with open(nbfile, 'w') as f:
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current.write(nb, f, 'ipynb')
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(output, resources) = LatexExporter(template_file='article').from_filename(nbfile)
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assert len(output) > 0
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