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 subprocess
import unittest
from patacrep.encoding import open_read
from .. import dynamic # pylint: disable=unused-import
class FileTest(unittest.TestCase, metaclass=dynamic.DynamicTest):
"""Test of songbook compilation.
For any given `foo.sb`, it performs several checks:
- the corresponding tex file is generated;
- the generated tex file matches the `foo.tex.control` control file;
- the compilation (tex, pdf, indexes) works without errors.
This class does nothing by itself, but its metaclass populates it with test
methods testing parser and renderers.
"""
maxDiff = None
@classmethod
def _iter_testmethods(cls):
"""Iterate over songbook files to test."""
for songbook in sorted(glob.glob(os.path.join(
os.path.dirname(__file__),
'*.sb',
))):
base = songbook[:-len(".sb")]
control = "{}.tex.control".format(base)
if not os.path.exists(control):
continue
yield (
"test_{}".format(os.path.basename(base)),
[base],
)
@classmethod
def _create_test(cls, base):
"""Return a function testing that `base` compiles."""
def test_compile(self):
"""Test that `base` is correctly compiled."""
if base is None:
return
songbook = "{}.sb".format(base)
# Check tex generation
self.assertEqual(0, self.compile_songbook(songbook, "tex"))
# Check generated tex
control = "{}.tex.control".format(base)
tex = "{}.tex".format(base)
with open_read(control) as expectfile:
with open_read(tex) as latexfile:
self.assertMultiLineEqual(
latexfile.read().strip(),
expectfile.read().strip(),
)
# Check compilation
self.assertEqual(0, self.compile_songbook(songbook))
test_compile.__doc__ = (
"Test that '{base}' is correctly compiled."
).format(base=os.path.basename(base))
return test_compile
@staticmethod
def compile_songbook(songbook, steps=None):
"""Compile songbook, and return the command return code."""
command = ['python', '-m', 'patacrep.songbook', songbook]
if steps:
command.extend(['--steps', steps])
return subprocess.check_call(
command,
stdin=subprocess.DEVNULL,
stdout=subprocess.DEVNULL,
stderr=subprocess.DEVNULL,
cwd=os.path.dirname(songbook),
)