108 lines
3 KiB
Python
Executable file
108 lines
3 KiB
Python
Executable file
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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import difflib
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import json
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import os
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import re
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import subprocess
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import unittest
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TEST_ROOT = os.path.dirname(__file__)
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PROJECT_ROOT = os.path.dirname(TEST_ROOT)
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HOEDOWN = [os.path.abspath(os.path.join(PROJECT_ROOT, 'hoedown'))]
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TIDY = ['tidy', '--show-body-only', '1', '--show-warnings', '0',
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'--quiet', '1']
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CONFIG_PATH = os.path.join(TEST_ROOT, 'config.json')
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SLUGIFY_PATTERN = re.compile(r'\W')
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def with_metaclass(meta, *bases):
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"""Metaclass injection utility from six.
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See: https://pythonhosted.org/six/
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"""
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class metaclass(meta):
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def __new__(cls, name, this_bases, d):
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return meta(name, bases, d)
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return type.__new__(metaclass, 'temporary_class', (), {})
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class TestFailed(AssertionError):
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def __init__(self, name, expected, got):
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super(TestFailed, self).__init__(self)
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diff = difflib.unified_diff(
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expected.splitlines(), got.splitlines(),
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fromfile='Expected', tofile='Got',
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)
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self.description = '{name}\n{diff}'.format(
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name=name, diff='\n'.join(diff),
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)
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def __str__(self):
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return self.description
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def _test_func(test_case):
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flags = test_case.get('flags') or []
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hoedown_proc = subprocess.Popen(
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HOEDOWN + flags + [os.path.join(TEST_ROOT, test_case['input'])],
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stdout=subprocess.PIPE,
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)
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hoedown_proc.wait()
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got_tidy_proc = subprocess.Popen(
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TIDY, stdin=hoedown_proc.stdout, stdout=subprocess.PIPE,
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)
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got_tidy_proc.wait()
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got = got_tidy_proc.stdout.read().strip()
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expected_tidy_proc = subprocess.Popen(
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TIDY + [os.path.join(TEST_ROOT, test_case['output'])],
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stdout=subprocess.PIPE,
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)
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expected_tidy_proc.wait()
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expected = expected_tidy_proc.stdout.read().strip()
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# Cleanup.
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hoedown_proc.stdout.close()
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got_tidy_proc.stdout.close()
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expected_tidy_proc.stdout.close()
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try:
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assert expected == got
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except AssertionError:
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raise TestFailed(test_case['input'], expected, got)
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def _make_test(test_case):
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return lambda self: _test_func(test_case)
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class MarkdownTestsMeta(type):
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"""Meta class for ``MarkdownTestCase`` to inject test cases on the fly.
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"""
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def __new__(meta, name, bases, attrs):
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with open(CONFIG_PATH) as f:
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config = json.load(f)
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for test in config['tests']:
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input_name = test['input']
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attr_name = 'test_' + SLUGIFY_PATTERN.sub(
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'_', os.path.splitext(input_name)[0].lower(),
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)
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func = _make_test(test)
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func.__doc__ = input_name
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if test.get('skip', False):
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func = unittest.skip(input_name)(func)
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if test.get('fail', False):
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func = unittest.expectsFailure(func)
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attrs[attr_name] = func
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return type.__new__(meta, name, bases, attrs)
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class MarkdownTests(with_metaclass(MarkdownTestsMeta, unittest.TestCase)):
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pass
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if __name__ == '__main__':
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unittest.main()
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