Engine for LaTeX songbooks http://www.patacrep.com
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"""Tests for the chordpro parser."""
# pylint: disable=too-few-public-methods
import glob
import os
import unittest
from patacrep.build import DEFAULT_CONFIG
from patacrep.songs.chordpro import ChordproSong
from .. import disable_logging
LANGUAGES = {
'tex': 'latex',
'sgc': 'chordpro',
'html': 'html',
}
class FileTestMeta(type):
"""Metaclass that creates on-the-fly test function according to files.
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See the :class:`FileTest` documentation for more information.
"""
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def __init__(cls, name, bases, nmspc):
super().__init__(name, bases, nmspc)
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for source in sorted(glob.glob(os.path.join(
os.path.dirname(__file__),
'*.source',
))):
base = source[:-len(".source")]
for dest in LANGUAGES:
destname = "{}.{}".format(base, dest)
if not os.path.exists(destname):
continue
setattr(
cls,
"test_{}_{}".format(os.path.basename(base), dest),
cls._create_test(base, dest),
)
@staticmethod
def _create_test(base, dest):
"""Return a function testing that `base` compilation in `dest` format.
"""
def test_parse_render(self):
"""Test that `base` is correctly parsed and rendered."""
if base is None or dest is None:
return
destname = "{}.{}".format(base, dest)
with open(destname, 'r', encoding='utf8') as expectfile:
chordproname = "{}.source".format(base)
with disable_logging():
self.assertMultiLineEqual(
ChordproSong(chordproname, DEFAULT_CONFIG).render(
output=chordproname,
output_format=LANGUAGES[dest],
).strip(),
expectfile.read().strip(),
)
test_parse_render.__doc__ = (
"Test that '{base}' is correctly parsed and rendererd into '{format}' format."
).format(base=os.path.basename(base), format=dest)
return test_parse_render
class FileTest(unittest.TestCase, metaclass=FileTestMeta):
"""Test of chorpro parser, and several renderers.
For any given `foo.source`, it is parsed as a chordpro file, and should be
rendered as `foo.sgc` with the chordpro renderer, and `foo.tex` with the
latex renderer.
This class does nothing by itself, but its metaclass populates it with test
methods testing parser and renderers.
"""
maxDiff = None