"""Tests to cover the Tools/i18n package"""
import os
import sys
import unittest
from textwrap import dedent
from test.support.script_helper import assert_python_ok
from test.test_tools import skip_if_missing, toolsdir
from test.support import temp_cwd, temp_dir
skip_if_missing()
class Test_pygettext(unittest.TestCase):
"""Tests for the pygettext.py tool"""
script = os.path.join(toolsdir,'i18n', 'pygettext.py')
def get_header(self, data):
""" utility: return the header of a .po file as a dictionary """
headers = {}
for line in data.split('\n'):
if not line or line.startswith(('#', 'msgid','msgstr')):
continue
line = line.strip('"')
key, val = line.split(':',1)
headers[key] = val.strip()
return headers
def get_msgids(self, data):
""" utility: return all msgids in .po file as a list of strings """
msgids = []
reading_msgid = False
cur_msgid = []
for line in data.split('\n'):
if reading_msgid:
if line.startswith('"'):
cur_msgid.append(line.strip('"'))
else:
msgids.append('\n'.join(cur_msgid))
cur_msgid = []
reading_msgid = False
continue
if line.startswith('msgid '):
line = line[len('msgid '):]
cur_msgid.append(line.strip('"'))
reading_msgid = True
else:
if reading_msgid:
msgids.append('\n'.join(cur_msgid))
return msgids
def extract_docstrings_from_str(self, module_content):
""" utility: return all msgids extracted from module_content """
filename = 'test_docstrings.py'
with temp_cwd(None) as cwd:
with open(filename, 'w') as fp:
fp.write(module_content)
assert_python_ok(self.script, '-D', filename)
with open('messages.pot') as fp:
data = fp.read()
return self.get_msgids(data)
def test_header(self):
"""Make sure the required fields are in the header, according to:
http://www.gnu.org/software/gettext/manual/gettext.html#Header-Entry
"""
with temp_cwd(None) as cwd:
assert_python_ok(self.script)
with open('messages.pot') as fp:
data = fp.read()
header = self.get_header(data)
self.assertIn("Project-Id-Version", header)
self.assertIn("POT-Creation-Date", header)
self.assertIn("PO-Revision-Date", header)
self.assertIn("Last-Translator", header)
self.assertIn("Language-Team", header)
self.assertIn("MIME-Version", header)
self.assertIn("Content-Type", header)
self.assertIn("Content-Transfer-Encoding", header)
self.assertIn("Generated-By", header)
# not clear if these should be required in POT (template) files
#self.assertIn("Report-Msgid-Bugs-To", header)
#self.assertIn("Language", header)
#"Plural-Forms" is optional
@unittest.skipIf(sys.platform.startswith('aix'),
'bpo-29972: broken test on AIX')
def test_POT_Creation_Date(self):
""" Match the date format from xgettext for POT-Creation-Date """
from datetime import datetime
with temp_cwd(None) as cwd:
assert_python_ok(self.script)
with open('messages.pot') as fp:
data = fp.read()
header = self.get_header(data)
creationDate = header['POT-Creation-Date']
# peel off the escaped newline at the end of string
if creationDate.endswith('\\n'):
creationDate = creationDate[:-len('\\n')]
# This will raise if the date format does not exactly match.
datetime.strptime(creationDate, '%Y-%m-%d %H:%M%z')
def test_funcdocstring(self):
for doc in ('"""doc"""', "r'''doc'''", "R'doc'", 'u"doc"'):
with self.subTest(doc):
msgids = self.extract_docstrings_from_str(dedent('''\
def foo(bar):
%s
''' % doc))
self.assertIn('doc', msgids)
def test_funcdocstring_bytes(self):
msgids = self.extract_docstrings_from_str(dedent('''\
def foo(bar):
b"""doc"""
'''))
self.assertFalse([msgid for msgid in msgids if 'doc' in msgid])
def test_funcdocstring_fstring(self):
msgids = self.extract_docstrings_from_str(dedent('''\
def foo(bar):
f"""doc"""
'''))
self.assertFalse([msgid for msgid in msgids if 'doc' in msgid])
def test_classdocstring(self):
for doc in ('"""doc"""', "r'''doc'''", "R'doc'", 'u"doc"'):
with self.subTest(doc):
msgids = self.extract_docstrings_from_str(dedent('''\
class C:
%s
''' % doc))
self.assertIn('doc', msgids)
def test_classdocstring_bytes(self):
msgids = self.extract_docstrings_from_str(dedent('''\
class C:
b"""doc"""
'''))
self.assertFalse([msgid for msgid in msgids if 'doc' in msgid])
def test_classdocstring_fstring(self):
msgids = self.extract_docstrings_from_str(dedent('''\
class C:
f"""doc"""
'''))
self.assertFalse([msgid for msgid in msgids if 'doc' in msgid])
def test_msgid(self):
msgids = self.extract_docstrings_from_str(
'''_("""doc""" r'str' u"ing")''')
self.assertIn('docstring', msgids)
def test_msgid_bytes(self):
msgids = self.extract_docstrings_from_str('_(b"""doc""")')
self.assertFalse([msgid for msgid in msgids if 'doc' in msgid])
def test_msgid_fstring(self):
msgids = self.extract_docstrings_from_str('_(f"""doc""")')
self.assertFalse([msgid for msgid in msgids if 'doc' in msgid])
def test_funcdocstring_annotated_args(self):
""" Test docstrings for functions with annotated args """
msgids = self.extract_docstrings_from_str(dedent('''\
def foo(bar: str):
"""doc"""
'''))
self.assertIn('doc', msgids)
def test_funcdocstring_annotated_return(self):
""" Test docstrings for functions with annotated return type """
msgids = self.extract_docstrings_from_str(dedent('''\
def foo(bar) -> str:
"""doc"""
'''))
self.assertIn('doc', msgids)
def test_funcdocstring_defvalue_args(self):
""" Test docstring for functions with default arg values """
msgids = self.extract_docstrings_from_str(dedent('''\
def foo(bar=()):
"""doc"""
'''))
self.assertIn('doc', msgids)
def test_funcdocstring_multiple_funcs(self):
""" Test docstring extraction for multiple functions combining
annotated args, annotated return types and default arg values
"""
msgids = self.extract_docstrings_from_str(dedent('''\
def foo1(bar: tuple=()) -> str:
"""doc1"""
def foo2(bar: List[1:2]) -> (lambda x: x):
"""doc2"""
def foo3(bar: 'func'=lambda x: x) -> {1: 2}:
"""doc3"""
'''))
self.assertIn('doc1', msgids)
self.assertIn('doc2', msgids)
self.assertIn('doc3', msgids)
def test_classdocstring_early_colon(self):
""" Test docstring extraction for a class with colons occuring within
the parentheses.
"""
msgids = self.extract_docstrings_from_str(dedent('''\
class D(L[1:2], F({1: 2}), metaclass=M(lambda x: x)):
"""doc"""
'''))
self.assertIn('doc', msgids)
def test_files_list(self):
"""Make sure the directories are inspected for source files
bpo-31920
"""
text1 = 'Text to translate1'
text2 = 'Text to translate2'
text3 = 'Text to ignore'
with temp_cwd(None), temp_dir(None) as sdir:
os.mkdir(os.path.join(sdir, 'pypkg'))
with open(os.path.join(sdir, 'pypkg', 'pymod.py'), 'w') as sfile:
sfile.write(f'_({text1!r})')
os.mkdir(os.path.join(sdir, 'pkg.py'))
with open(os.path.join(sdir, 'pkg.py', 'pymod2.py'), 'w') as sfile:
sfile.write(f'_({text2!r})')
os.mkdir(os.path.join(sdir, 'CVS'))
with open(os.path.join(sdir, 'CVS', 'pymod3.py'), 'w') as sfile:
sfile.write(f'_({text3!r})')
assert_python_ok(self.script, sdir)
with open('messages.pot') as fp:
data = fp.read()
self.assertIn(f'msgid "{text1}"', data)
self.assertIn(f'msgid "{text2}"', data)
self.assertNotIn(text3, data)