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643 lines
24 KiB
Python
643 lines
24 KiB
Python
"""Tests to cover the Tools/i18n package"""
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import os
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import re
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import sys
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import unittest
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from textwrap import dedent
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from pathlib import Path
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from test.support.script_helper import assert_python_ok
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from test.test_tools import imports_under_tool, skip_if_missing, toolsdir
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from test.support.os_helper import temp_cwd, temp_dir
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skip_if_missing()
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DATA_DIR = Path(__file__).resolve().parent / 'i18n_data'
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with imports_under_tool("i18n"):
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from pygettext import (parse_spec, process_keywords, DEFAULTKEYWORDS,
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unparse_spec)
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def normalize_POT_file(pot):
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"""Normalize the POT creation timestamp, charset and
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file locations to make the POT file easier to compare.
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"""
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# Normalize the creation date.
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date_pattern = re.compile(r'"POT-Creation-Date: .+?\\n"')
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header = r'"POT-Creation-Date: 2000-01-01 00:00+0000\\n"'
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pot = re.sub(date_pattern, header, pot)
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# Normalize charset to UTF-8 (currently there's no way to specify the output charset).
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charset_pattern = re.compile(r'"Content-Type: text/plain; charset=.+?\\n"')
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charset = r'"Content-Type: text/plain; charset=UTF-8\\n"'
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pot = re.sub(charset_pattern, charset, pot)
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# Normalize file location path separators in case this test is
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# running on Windows (which uses '\').
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fileloc_pattern = re.compile(r'#:.+')
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def replace(match):
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return match[0].replace(os.sep, "/")
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pot = re.sub(fileloc_pattern, replace, pot)
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return pot
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class Test_pygettext(unittest.TestCase):
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"""Tests for the pygettext.py tool"""
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script = Path(toolsdir, 'i18n', 'pygettext.py')
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def get_header(self, data):
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""" utility: return the header of a .po file as a dictionary """
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headers = {}
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for line in data.split('\n'):
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if not line or line.startswith(('#', 'msgid', 'msgstr')):
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continue
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line = line.strip('"')
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key, val = line.split(':', 1)
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headers[key] = val.strip()
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return headers
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def get_msgids(self, data):
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""" utility: return all msgids in .po file as a list of strings """
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msgids = []
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reading_msgid = False
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cur_msgid = []
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for line in data.split('\n'):
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if reading_msgid:
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if line.startswith('"'):
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cur_msgid.append(line.strip('"'))
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else:
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msgids.append('\n'.join(cur_msgid))
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cur_msgid = []
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reading_msgid = False
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continue
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if line.startswith('msgid '):
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line = line[len('msgid '):]
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cur_msgid.append(line.strip('"'))
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reading_msgid = True
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else:
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if reading_msgid:
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msgids.append('\n'.join(cur_msgid))
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return msgids
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def assert_POT_equal(self, expected, actual):
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"""Check if two POT files are equal"""
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self.maxDiff = None
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self.assertEqual(normalize_POT_file(expected), normalize_POT_file(actual))
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def extract_from_str(self, module_content, *, args=(), strict=True,
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with_stderr=False, raw=False):
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"""Return all msgids extracted from module_content."""
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filename = 'test.py'
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with temp_cwd(None):
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with open(filename, 'w', encoding='utf-8') as fp:
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fp.write(module_content)
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res = assert_python_ok('-Xutf8', self.script, *args, filename)
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if strict:
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self.assertEqual(res.err, b'')
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with open('messages.pot', encoding='utf-8') as fp:
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data = fp.read()
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if not raw:
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data = self.get_msgids(data)
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if not with_stderr:
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return data
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return data, res.err
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def extract_docstrings_from_str(self, module_content):
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"""Return all docstrings extracted from module_content."""
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return self.extract_from_str(module_content, args=('--docstrings',), strict=False)
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def get_stderr(self, module_content):
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return self.extract_from_str(module_content, strict=False, with_stderr=True)[1]
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def test_header(self):
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"""Make sure the required fields are in the header, according to:
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http://www.gnu.org/software/gettext/manual/gettext.html#Header-Entry
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"""
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with temp_cwd(None) as cwd:
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assert_python_ok('-Xutf8', self.script)
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with open('messages.pot', encoding='utf-8') as fp:
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data = fp.read()
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header = self.get_header(data)
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self.assertIn("Project-Id-Version", header)
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self.assertIn("POT-Creation-Date", header)
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self.assertIn("PO-Revision-Date", header)
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self.assertIn("Last-Translator", header)
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self.assertIn("Language-Team", header)
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self.assertIn("MIME-Version", header)
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self.assertIn("Content-Type", header)
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self.assertIn("Content-Transfer-Encoding", header)
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self.assertIn("Generated-By", header)
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# not clear if these should be required in POT (template) files
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#self.assertIn("Report-Msgid-Bugs-To", header)
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#self.assertIn("Language", header)
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#"Plural-Forms" is optional
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@unittest.skipIf(sys.platform.startswith('aix'),
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'bpo-29972: broken test on AIX')
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def test_POT_Creation_Date(self):
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""" Match the date format from xgettext for POT-Creation-Date """
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from datetime import datetime
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with temp_cwd(None) as cwd:
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assert_python_ok('-Xutf8', self.script)
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with open('messages.pot', encoding='utf-8') as fp:
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data = fp.read()
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header = self.get_header(data)
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creationDate = header['POT-Creation-Date']
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# peel off the escaped newline at the end of string
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if creationDate.endswith('\\n'):
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creationDate = creationDate[:-len('\\n')]
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# This will raise if the date format does not exactly match.
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datetime.strptime(creationDate, '%Y-%m-%d %H:%M%z')
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def test_output_option(self):
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for opt in ('-o', '--output='):
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with temp_cwd():
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assert_python_ok(self.script, f'{opt}test')
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self.assertTrue(os.path.exists('test'))
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res = assert_python_ok(self.script, f'{opt}-')
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self.assertIn(b'Project-Id-Version: PACKAGE VERSION', res.out)
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def test_funcdocstring(self):
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for doc in ('"""doc"""', "r'''doc'''", "R'doc'", 'u"doc"'):
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with self.subTest(doc):
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msgids = self.extract_docstrings_from_str(dedent('''\
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def foo(bar):
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%s
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''' % doc))
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self.assertIn('doc', msgids)
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def test_funcdocstring_bytes(self):
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msgids = self.extract_docstrings_from_str(dedent('''\
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def foo(bar):
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b"""doc"""
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'''))
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self.assertFalse([msgid for msgid in msgids if 'doc' in msgid])
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def test_funcdocstring_fstring(self):
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msgids = self.extract_docstrings_from_str(dedent('''\
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def foo(bar):
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f"""doc"""
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'''))
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self.assertFalse([msgid for msgid in msgids if 'doc' in msgid])
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def test_classdocstring(self):
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for doc in ('"""doc"""', "r'''doc'''", "R'doc'", 'u"doc"'):
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with self.subTest(doc):
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msgids = self.extract_docstrings_from_str(dedent('''\
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class C:
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%s
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''' % doc))
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self.assertIn('doc', msgids)
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def test_classdocstring_bytes(self):
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msgids = self.extract_docstrings_from_str(dedent('''\
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class C:
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b"""doc"""
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'''))
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self.assertFalse([msgid for msgid in msgids if 'doc' in msgid])
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def test_classdocstring_fstring(self):
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msgids = self.extract_docstrings_from_str(dedent('''\
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class C:
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f"""doc"""
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'''))
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self.assertFalse([msgid for msgid in msgids if 'doc' in msgid])
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def test_moduledocstring(self):
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for doc in ('"""doc"""', "r'''doc'''", "R'doc'", 'u"doc"'):
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with self.subTest(doc):
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msgids = self.extract_docstrings_from_str(dedent('''\
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%s
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''' % doc))
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self.assertIn('doc', msgids)
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def test_moduledocstring_bytes(self):
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msgids = self.extract_docstrings_from_str(dedent('''\
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b"""doc"""
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'''))
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self.assertFalse([msgid for msgid in msgids if 'doc' in msgid])
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def test_moduledocstring_fstring(self):
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msgids = self.extract_docstrings_from_str(dedent('''\
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f"""doc"""
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'''))
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self.assertFalse([msgid for msgid in msgids if 'doc' in msgid])
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def test_msgid(self):
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msgids = self.extract_docstrings_from_str(
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'''_("""doc""" r'str' u"ing")''')
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self.assertIn('docstring', msgids)
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def test_msgid_bytes(self):
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msgids = self.extract_docstrings_from_str('_(b"""doc""")')
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self.assertFalse([msgid for msgid in msgids if 'doc' in msgid])
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def test_msgid_fstring(self):
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msgids = self.extract_docstrings_from_str('_(f"""doc""")')
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self.assertFalse([msgid for msgid in msgids if 'doc' in msgid])
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def test_funcdocstring_annotated_args(self):
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""" Test docstrings for functions with annotated args """
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msgids = self.extract_docstrings_from_str(dedent('''\
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def foo(bar: str):
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"""doc"""
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'''))
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self.assertIn('doc', msgids)
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def test_funcdocstring_annotated_return(self):
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""" Test docstrings for functions with annotated return type """
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msgids = self.extract_docstrings_from_str(dedent('''\
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def foo(bar) -> str:
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"""doc"""
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'''))
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self.assertIn('doc', msgids)
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def test_funcdocstring_defvalue_args(self):
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""" Test docstring for functions with default arg values """
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msgids = self.extract_docstrings_from_str(dedent('''\
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def foo(bar=()):
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"""doc"""
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'''))
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self.assertIn('doc', msgids)
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def test_funcdocstring_multiple_funcs(self):
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""" Test docstring extraction for multiple functions combining
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annotated args, annotated return types and default arg values
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"""
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msgids = self.extract_docstrings_from_str(dedent('''\
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def foo1(bar: tuple=()) -> str:
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"""doc1"""
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def foo2(bar: List[1:2]) -> (lambda x: x):
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"""doc2"""
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def foo3(bar: 'func'=lambda x: x) -> {1: 2}:
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"""doc3"""
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'''))
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self.assertIn('doc1', msgids)
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self.assertIn('doc2', msgids)
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self.assertIn('doc3', msgids)
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def test_classdocstring_early_colon(self):
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""" Test docstring extraction for a class with colons occurring within
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the parentheses.
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"""
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msgids = self.extract_docstrings_from_str(dedent('''\
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class D(L[1:2], F({1: 2}), metaclass=M(lambda x: x)):
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"""doc"""
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'''))
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self.assertIn('doc', msgids)
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def test_calls_in_fstrings(self):
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msgids = self.extract_docstrings_from_str(dedent('''\
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f"{_('foo bar')}"
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'''))
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self.assertIn('foo bar', msgids)
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def test_calls_in_fstrings_raw(self):
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msgids = self.extract_docstrings_from_str(dedent('''\
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rf"{_('foo bar')}"
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'''))
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self.assertIn('foo bar', msgids)
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def test_calls_in_fstrings_nested(self):
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msgids = self.extract_docstrings_from_str(dedent('''\
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f"""{f'{_("foo bar")}'}"""
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'''))
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self.assertIn('foo bar', msgids)
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def test_calls_in_fstrings_attribute(self):
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msgids = self.extract_docstrings_from_str(dedent('''\
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f"{obj._('foo bar')}"
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'''))
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self.assertIn('foo bar', msgids)
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def test_calls_in_fstrings_with_call_on_call(self):
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msgids = self.extract_docstrings_from_str(dedent('''\
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f"{type(str)('foo bar')}"
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'''))
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self.assertNotIn('foo bar', msgids)
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def test_calls_in_fstrings_with_format(self):
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msgids = self.extract_docstrings_from_str(dedent('''\
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f"{_('foo {bar}').format(bar='baz')}"
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'''))
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self.assertIn('foo {bar}', msgids)
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def test_calls_in_fstrings_with_wrong_input_1(self):
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msgids = self.extract_docstrings_from_str(dedent('''\
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f"{_(f'foo {bar}')}"
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'''))
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self.assertFalse([msgid for msgid in msgids if 'foo {bar}' in msgid])
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def test_calls_in_fstrings_with_wrong_input_2(self):
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msgids = self.extract_docstrings_from_str(dedent('''\
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f"{_(1)}"
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'''))
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self.assertNotIn(1, msgids)
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def test_calls_in_fstring_with_multiple_args(self):
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msgids = self.extract_docstrings_from_str(dedent('''\
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f"{_('foo', 'bar')}"
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'''))
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self.assertIn('foo', msgids)
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self.assertNotIn('bar', msgids)
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def test_calls_in_fstring_with_keyword_args(self):
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msgids = self.extract_docstrings_from_str(dedent('''\
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f"{_('foo', bar='baz')}"
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'''))
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self.assertIn('foo', msgids)
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self.assertNotIn('bar', msgids)
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self.assertNotIn('baz', msgids)
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def test_calls_in_fstring_with_partially_wrong_expression(self):
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msgids = self.extract_docstrings_from_str(dedent('''\
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f"{_(f'foo') + _('bar')}"
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'''))
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self.assertNotIn('foo', msgids)
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self.assertIn('bar', msgids)
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def test_function_and_class_names(self):
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"""Test that function and class names are not mistakenly extracted."""
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msgids = self.extract_from_str(dedent('''\
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def _(x):
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pass
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def _(x="foo"):
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pass
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async def _(x):
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pass
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class _(object):
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pass
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'''))
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self.assertEqual(msgids, [''])
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def test_pygettext_output(self):
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"""Test that the pygettext output exactly matches snapshots."""
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for input_file, output_file, output in extract_from_snapshots():
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with self.subTest(input_file=input_file):
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expected = output_file.read_text(encoding='utf-8')
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self.assert_POT_equal(expected, output)
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def test_files_list(self):
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"""Make sure the directories are inspected for source files
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bpo-31920
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"""
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text1 = 'Text to translate1'
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text2 = 'Text to translate2'
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text3 = 'Text to ignore'
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with temp_cwd(None), temp_dir(None) as sdir:
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pymod = Path(sdir, 'pypkg', 'pymod.py')
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pymod.parent.mkdir()
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pymod.write_text(f'_({text1!r})', encoding='utf-8')
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pymod2 = Path(sdir, 'pkg.py', 'pymod2.py')
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pymod2.parent.mkdir()
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pymod2.write_text(f'_({text2!r})', encoding='utf-8')
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pymod3 = Path(sdir, 'CVS', 'pymod3.py')
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pymod3.parent.mkdir()
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pymod3.write_text(f'_({text3!r})', encoding='utf-8')
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assert_python_ok('-Xutf8', self.script, sdir)
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data = Path('messages.pot').read_text(encoding='utf-8')
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self.assertIn(f'msgid "{text1}"', data)
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self.assertIn(f'msgid "{text2}"', data)
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self.assertNotIn(text3, data)
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def test_help_text(self):
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"""Test that the help text is displayed."""
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res = assert_python_ok(self.script, '--help')
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self.assertEqual(res.out, b'')
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self.assertIn(b'pygettext -- Python equivalent of xgettext(1)', res.err)
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def test_error_messages(self):
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"""Test that pygettext outputs error messages to stderr."""
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stderr = self.get_stderr(dedent('''\
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_(1+2)
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ngettext('foo')
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dgettext(*args, 'foo')
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'''))
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# Normalize line endings on Windows
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stderr = stderr.decode('utf-8').replace('\r', '')
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self.assertEqual(
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stderr,
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"*** test.py:1: Expected a string constant for argument 1, got 1 + 2\n"
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"*** test.py:2: Expected at least 2 positional argument(s) in gettext call, got 1\n"
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"*** test.py:3: Variable positional arguments are not allowed in gettext calls\n"
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)
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def test_extract_all_comments(self):
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"""
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Test that the --add-comments option without an
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explicit tag extracts all translator comments.
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"""
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for arg in ('--add-comments', '-c'):
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with self.subTest(arg=arg):
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data = self.extract_from_str(dedent('''\
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# Translator comment
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_("foo")
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'''), args=(arg,), raw=True)
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self.assertIn('#. Translator comment', data)
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def test_comments_with_multiple_tags(self):
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"""
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Test that multiple --add-comments tags can be specified.
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"""
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for arg in ('--add-comments={}', '-c{}'):
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with self.subTest(arg=arg):
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args = (arg.format('foo:'), arg.format('bar:'))
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data = self.extract_from_str(dedent('''\
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# foo: comment
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_("foo")
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# bar: comment
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_("bar")
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# baz: comment
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_("baz")
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'''), args=args, raw=True)
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self.assertIn('#. foo: comment', data)
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self.assertIn('#. bar: comment', data)
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self.assertNotIn('#. baz: comment', data)
|
|
|
|
def test_comments_not_extracted_without_tags(self):
|
|
"""
|
|
Test that translator comments are not extracted without
|
|
specifying --add-comments.
|
|
"""
|
|
data = self.extract_from_str(dedent('''\
|
|
# Translator comment
|
|
_("foo")
|
|
'''), raw=True)
|
|
self.assertNotIn('#.', data)
|
|
|
|
def test_parse_keyword_spec(self):
|
|
valid = (
|
|
('foo', ('foo', {'msgid': 0})),
|
|
('foo:1', ('foo', {'msgid': 0})),
|
|
('foo:1,2', ('foo', {'msgid': 0, 'msgid_plural': 1})),
|
|
('foo:1, 2', ('foo', {'msgid': 0, 'msgid_plural': 1})),
|
|
('foo:1,2c', ('foo', {'msgid': 0, 'msgctxt': 1})),
|
|
('foo:2c,1', ('foo', {'msgid': 0, 'msgctxt': 1})),
|
|
('foo:2c ,1', ('foo', {'msgid': 0, 'msgctxt': 1})),
|
|
('foo:1,2,3c', ('foo', {'msgid': 0, 'msgid_plural': 1, 'msgctxt': 2})),
|
|
('foo:1, 2, 3c', ('foo', {'msgid': 0, 'msgid_plural': 1, 'msgctxt': 2})),
|
|
('foo:3c,1,2', ('foo', {'msgid': 0, 'msgid_plural': 1, 'msgctxt': 2})),
|
|
)
|
|
for spec, expected in valid:
|
|
with self.subTest(spec=spec):
|
|
self.assertEqual(parse_spec(spec), expected)
|
|
# test unparse-parse round-trip
|
|
self.assertEqual(parse_spec(unparse_spec(*expected)), expected)
|
|
|
|
invalid = (
|
|
('foo:', "Invalid keyword spec 'foo:': missing argument positions"),
|
|
('foo:bar', "Invalid keyword spec 'foo:bar': position is not an integer"),
|
|
('foo:0', "Invalid keyword spec 'foo:0': argument positions must be strictly positive"),
|
|
('foo:-2', "Invalid keyword spec 'foo:-2': argument positions must be strictly positive"),
|
|
('foo:1,1', "Invalid keyword spec 'foo:1,1': duplicate positions"),
|
|
('foo:1,2,1', "Invalid keyword spec 'foo:1,2,1': duplicate positions"),
|
|
('foo:1c,2,1c', "Invalid keyword spec 'foo:1c,2,1c': duplicate positions"),
|
|
('foo:1c,2,3c', "Invalid keyword spec 'foo:1c,2,3c': msgctxt can only appear once"),
|
|
('foo:1,2,3', "Invalid keyword spec 'foo:1,2,3': too many positions"),
|
|
('foo:1c', "Invalid keyword spec 'foo:1c': msgctxt cannot appear without msgid"),
|
|
)
|
|
for spec, message in invalid:
|
|
with self.subTest(spec=spec):
|
|
with self.assertRaises(ValueError) as cm:
|
|
parse_spec(spec)
|
|
self.assertEqual(str(cm.exception), message)
|
|
|
|
def test_process_keywords(self):
|
|
default_keywords = {name: [spec] for name, spec
|
|
in DEFAULTKEYWORDS.items()}
|
|
inputs = (
|
|
(['foo'], True),
|
|
(['_:1,2'], True),
|
|
(['foo', 'foo:1,2'], True),
|
|
(['foo'], False),
|
|
(['_:1,2', '_:1c,2,3', 'pgettext'], False),
|
|
# Duplicate entries
|
|
(['foo', 'foo'], True),
|
|
(['_'], False)
|
|
)
|
|
expected = (
|
|
{'foo': [{'msgid': 0}]},
|
|
{'_': [{'msgid': 0, 'msgid_plural': 1}]},
|
|
{'foo': [{'msgid': 0}, {'msgid': 0, 'msgid_plural': 1}]},
|
|
default_keywords | {'foo': [{'msgid': 0}]},
|
|
default_keywords | {'_': [{'msgid': 0, 'msgid_plural': 1},
|
|
{'msgctxt': 0, 'msgid': 1, 'msgid_plural': 2},
|
|
{'msgid': 0}],
|
|
'pgettext': [{'msgid': 0},
|
|
{'msgctxt': 0, 'msgid': 1}]},
|
|
{'foo': [{'msgid': 0}]},
|
|
default_keywords,
|
|
)
|
|
for (keywords, no_default_keywords), expected in zip(inputs, expected):
|
|
with self.subTest(keywords=keywords,
|
|
no_default_keywords=no_default_keywords):
|
|
processed = process_keywords(
|
|
keywords,
|
|
no_default_keywords=no_default_keywords)
|
|
self.assertEqual(processed, expected)
|
|
|
|
def test_multiple_keywords_same_funcname_errors(self):
|
|
# If at least one keyword spec for a given funcname matches,
|
|
# no error should be printed.
|
|
msgids, stderr = self.extract_from_str(dedent('''\
|
|
_("foo", 42)
|
|
_(42, "bar")
|
|
'''), args=('--keyword=_:1', '--keyword=_:2'), with_stderr=True)
|
|
self.assertIn('foo', msgids)
|
|
self.assertIn('bar', msgids)
|
|
self.assertEqual(stderr, b'')
|
|
|
|
# If no keyword spec for a given funcname matches,
|
|
# all errors are printed.
|
|
msgids, stderr = self.extract_from_str(dedent('''\
|
|
_(x, 42)
|
|
_(42, y)
|
|
'''), args=('--keyword=_:1', '--keyword=_:2'), with_stderr=True,
|
|
strict=False)
|
|
self.assertEqual(msgids, [''])
|
|
# Normalize line endings on Windows
|
|
stderr = stderr.decode('utf-8').replace('\r', '')
|
|
self.assertEqual(
|
|
stderr,
|
|
'*** test.py:1: No keywords matched gettext call "_":\n'
|
|
'\tkeyword="_": Expected a string constant for argument 1, got x\n'
|
|
'\tkeyword="_:2": Expected a string constant for argument 2, got 42\n'
|
|
'*** test.py:2: No keywords matched gettext call "_":\n'
|
|
'\tkeyword="_": Expected a string constant for argument 1, got 42\n'
|
|
'\tkeyword="_:2": Expected a string constant for argument 2, got y\n')
|
|
|
|
|
|
def extract_from_snapshots():
|
|
snapshots = {
|
|
'messages.py': (),
|
|
'fileloc.py': ('--docstrings',),
|
|
'docstrings.py': ('--docstrings',),
|
|
'comments.py': ('--add-comments=i18n:',),
|
|
'custom_keywords.py': ('--keyword=foo', '--keyword=nfoo:1,2',
|
|
'--keyword=pfoo:1c,2',
|
|
'--keyword=npfoo:1c,2,3', '--keyword=_:1,2'),
|
|
'multiple_keywords.py': ('--keyword=foo:1c,2,3', '--keyword=foo:1c,2',
|
|
'--keyword=foo:1,2',
|
|
# repeat a keyword to make sure it is extracted only once
|
|
'--keyword=foo', '--keyword=foo'),
|
|
# == Test character escaping
|
|
# Escape ascii and unicode:
|
|
'escapes.py': ('--escape', '--add-comments='),
|
|
# Escape only ascii and let unicode pass through:
|
|
('escapes.py', 'ascii-escapes.pot'): ('--add-comments=',),
|
|
}
|
|
|
|
for filename, args in snapshots.items():
|
|
if isinstance(filename, tuple):
|
|
filename, output_file = filename
|
|
output_file = DATA_DIR / output_file
|
|
input_file = DATA_DIR / filename
|
|
else:
|
|
input_file = DATA_DIR / filename
|
|
output_file = input_file.with_suffix('.pot')
|
|
contents = input_file.read_bytes()
|
|
with temp_cwd(None):
|
|
Path(input_file.name).write_bytes(contents)
|
|
assert_python_ok('-Xutf8', Test_pygettext.script, *args,
|
|
input_file.name)
|
|
yield (input_file, output_file,
|
|
Path('messages.pot').read_text(encoding='utf-8'))
|
|
|
|
|
|
def update_POT_snapshots():
|
|
for _, output_file, output in extract_from_snapshots():
|
|
output = normalize_POT_file(output)
|
|
output_file.write_text(output, encoding='utf-8')
|
|
|
|
|
|
if __name__ == '__main__':
|
|
# To regenerate POT files
|
|
if len(sys.argv) > 1 and sys.argv[1] == '--snapshot-update':
|
|
update_POT_snapshots()
|
|
sys.exit(0)
|
|
unittest.main()
|