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"""Test Pandoc module"""
# -----------------------------------------------------------------------------
# Copyright (C) 2014 The IPython Development Team
#
# Distributed under the terms of the BSD License. The full license is in
# the file COPYING, distributed as part of this software.
# -----------------------------------------------------------------------------
# -----------------------------------------------------------------------------
# Imports
# -----------------------------------------------------------------------------
import os
import warnings
from nbconvert.utils import pandoc
from tests.base import TestsBase
from tests.testutils import onlyif_cmds_exist
# -----------------------------------------------------------------------------
# Classes and functions
# -----------------------------------------------------------------------------
class TestPandoc(TestsBase):
"""Collection of Pandoc tests"""
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.original_env = os.environ.copy()
def setUp(self):
super().setUp()
pandoc.check_pandoc_version._cached = None # type:ignore
@onlyif_cmds_exist("pandoc")
def test_pandoc_available(self):
"""Test behaviour that pandoc functions raise PandocMissing as documented"""
pandoc.clean_cache()
os.environ["PATH"] = ""
with self.assertRaises(pandoc.PandocMissing):
pandoc.get_pandoc_version()
with self.assertRaises(pandoc.PandocMissing):
pandoc.check_pandoc_version()
with self.assertRaises(pandoc.PandocMissing):
pandoc.pandoc("", "markdown", "html")
# original_env["PATH"] should contain pandoc
os.environ["PATH"] = self.original_env["PATH"]
with warnings.catch_warnings(record=True) as w:
pandoc.get_pandoc_version()
pandoc.check_pandoc_version()
pandoc.pandoc("", "markdown", "html")
self.assertEqual(w, [])
@onlyif_cmds_exist("pandoc")
def test_minimal_version(self):
pandoc._minimal_version = "120.0"
with warnings.catch_warnings(record=True) as w:
warnings.simplefilter("always")
# call it twice to verify the cached value is used
assert not pandoc.check_pandoc_version()
assert not pandoc.check_pandoc_version()
# only one warning after two calls, due to cache
self.assertEqual(len(w), 1)
# clear cache
pandoc.check_pandoc_version._cached = None # type:ignore
pandoc._minimal_version = pandoc.get_pandoc_version()
assert pandoc.check_pandoc_version()
def pandoc_function_raised_missing(f, *args, **kwargs):
try:
f(*args, **kwargs)
except pandoc.PandocMissing:
return True
else:
return False
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