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