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test_latex.py
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test_latex.py
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"""Tests for the latex preprocessor"""
# Copyright (c) IPython Development Team.
# Distributed under the terms of the Modified BSD License.
from nbconvert.preprocessors.latex import LatexPreprocessor
from .base import PreprocessorTestsBase
class TestLatex(PreprocessorTestsBase):
"""Contains test functions for latex.py"""
def build_preprocessor(self):
"""Make an instance of a preprocessor"""
preprocessor = LatexPreprocessor()
preprocessor.enabled = True
return preprocessor
def test_constructor(self):
"""Can a LatexPreprocessor be constructed?"""
self.build_preprocessor()
def test_output(self):
"""Test the output of the LatexPreprocessor"""
nb = self.build_notebook()
res = self.build_resources()
preprocessor = self.build_preprocessor()
nb, res = preprocessor(nb, res)
# Make sure the code cell wasn't modified.
self.assertEqual(nb.cells[0].source, "$ e $")
# Verify that the markdown cell wasn't processed.
self.assertEqual(nb.cells[1].source, "$ e $")
def test_highlight(self):
"""Check that highlighting style can be changed"""
nb = self.build_notebook()
res = self.build_resources()
preprocessor = self.build_preprocessor()
# Set the style to a known builtin that's not the default
preprocessor.style = "colorful"
nb, res = preprocessor(nb, res)
style_defs = res["latex"]["pygments_definitions"]
# Get the default
from pygments.formatters import LatexFormatter
default_defs = LatexFormatter(style="default").get_style_defs()
# Verify that the style was in fact changed
assert style_defs != default_defs