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63 lines
2 KiB
Python
63 lines
2 KiB
Python
import re
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import subprocess
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import sys
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import unittest
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from pathlib import Path
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from test.support import REPO_ROOT, TEST_HOME_DIR, requires_subprocess
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from test.test_tools import skip_if_missing
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pygettext = Path(REPO_ROOT) / 'Tools' / 'i18n' / 'pygettext.py'
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msgid_pattern = re.compile(r'msgid(.*?)(?:msgid_plural|msgctxt|msgstr)',
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re.DOTALL)
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msgid_string_pattern = re.compile(r'"((?:\\"|[^"])*)"')
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def _generate_po_file(path, *, stdout_only=True):
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res = subprocess.run([sys.executable, pygettext,
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'--no-location', '-o', '-', path],
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stdout=subprocess.PIPE, stderr=subprocess.PIPE,
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text=True)
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if stdout_only:
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return res.stdout
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return res
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def _extract_msgids(po):
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msgids = []
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for msgid in msgid_pattern.findall(po):
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msgid_string = ''.join(msgid_string_pattern.findall(msgid))
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msgid_string = msgid_string.replace(r'\"', '"')
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if msgid_string:
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msgids.append(msgid_string)
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return sorted(msgids)
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def _get_snapshot_path(module_name):
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return Path(TEST_HOME_DIR) / 'translationdata' / module_name / 'msgids.txt'
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@requires_subprocess()
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class TestTranslationsBase(unittest.TestCase):
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def assertMsgidsEqual(self, module):
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'''Assert that msgids extracted from a given module match a
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snapshot.
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'''
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skip_if_missing('i18n')
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res = _generate_po_file(module.__file__, stdout_only=False)
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self.assertEqual(res.returncode, 0)
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self.assertEqual(res.stderr, '')
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msgids = _extract_msgids(res.stdout)
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snapshot_path = _get_snapshot_path(module.__name__)
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snapshot = snapshot_path.read_text().splitlines()
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self.assertListEqual(msgids, snapshot)
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def update_translation_snapshots(module):
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contents = _generate_po_file(module.__file__)
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msgids = _extract_msgids(contents)
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snapshot_path = _get_snapshot_path(module.__name__)
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snapshot_path.write_text('\n'.join(msgids))
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