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# -*- coding: koi8-r -*-
import unittest
from test.support import script_helper, captured_stdout
from test.support.os_helper import TESTFN, unlink, rmtree
from test.support.import_helper import unload
import importlib
import os
import sys
import subprocess
import tempfile
class MiscSourceEncodingTest(unittest.TestCase):
def test_pep263(self):
self.assertEqual(
"ðÉÔÏÎ".encode("utf-8"),
b'\xd0\x9f\xd0\xb8\xd1\x82\xd0\xbe\xd0\xbd'
)
self.assertEqual(
"\ð".encode("utf-8"),
b'\\\xd0\x9f'
)
def test_compilestring(self):
# see #1882
c = compile(b"\n# coding: utf-8\nu = '\xc3\xb3'\n", "dummy", "exec")
d = {}
exec(c, d)
self.assertEqual(d['u'], '\xf3')
def test_issue2301(self):
try:
compile(b"# coding: cp932\nprint '\x94\x4e'", "dummy", "exec")
except SyntaxError as v:
self.assertEqual(v.text.rstrip('\n'), "print '\u5e74'")
else:
self.fail()
def test_issue4626(self):
c = compile("# coding=latin-1\n\u00c6 = '\u00c6'", "dummy", "exec")
d = {}
exec(c, d)
self.assertEqual(d['\xc6'], '\xc6')
def test_issue3297(self):
c = compile("a, b = '\U0001010F', '\\U0001010F'", "dummy", "exec")
d = {}
exec(c, d)
self.assertEqual(d['a'], d['b'])
self.assertEqual(len(d['a']), len(d['b']))
self.assertEqual(ascii(d['a']), ascii(d['b']))
def test_issue7820(self):
# Ensure that check_bom() restores all bytes in the right order if
# check_bom() fails in pydebug mode: a buffer starts with the first
# byte of a valid BOM, but next bytes are different
# one byte in common with the UTF-16-LE BOM
self.assertRaises(SyntaxError, eval, b'\xff\x20')
# one byte in common with the UTF-8 BOM
self.assertRaises(SyntaxError, eval, b'\xef\x20')
# two bytes in common with the UTF-8 BOM
self.assertRaises(SyntaxError, eval, b'\xef\xbb\x20')
def test_20731(self):
sub = subprocess.Popen([sys.executable,
os.path.join(os.path.dirname(__file__),
'coding20731.py')],
stderr=subprocess.PIPE)
err = sub.communicate()[1]
self.assertEqual(sub.returncode, 0)
self.assertNotIn(b'SyntaxError', err)
def test_error_message(self):
compile(b'# -*- coding: iso-8859-15 -*-\n', 'dummy', 'exec')
compile(b'\xef\xbb\xbf\n', 'dummy', 'exec')
compile(b'\xef\xbb\xbf# -*- coding: utf-8 -*-\n', 'dummy', 'exec')
with self.assertRaisesRegex(SyntaxError, 'fake'):
compile(b'# -*- coding: fake -*-\n', 'dummy', 'exec')
with self.assertRaisesRegex(SyntaxError, 'iso-8859-15'):
compile(b'\xef\xbb\xbf# -*- coding: iso-8859-15 -*-\n',
'dummy', 'exec')
with self.assertRaisesRegex(SyntaxError, 'BOM'):
compile(b'\xef\xbb\xbf# -*- coding: iso-8859-15 -*-\n',
'dummy', 'exec')
with self.assertRaisesRegex(SyntaxError, 'fake'):
compile(b'\xef\xbb\xbf# -*- coding: fake -*-\n', 'dummy', 'exec')
with self.assertRaisesRegex(SyntaxError, 'BOM'):
compile(b'\xef\xbb\xbf# -*- coding: fake -*-\n', 'dummy', 'exec')
def test_bad_coding(self):
module_name = 'bad_coding'
self.verify_bad_module(module_name)
def test_bad_coding2(self):
module_name = 'bad_coding2'
self.verify_bad_module(module_name)
def verify_bad_module(self, module_name):
self.assertRaises(SyntaxError, __import__, 'test.' + module_name)
path = os.path.dirname(__file__)
filename = os.path.join(path, module_name + '.py')
with open(filename, "rb") as fp:
bytes = fp.read()
self.assertRaises(SyntaxError, compile, bytes, filename, 'exec')
def test_exec_valid_coding(self):
d = {}
exec(b'# coding: cp949\na = "\xaa\xa7"\n', d)
self.assertEqual(d['a'], '\u3047')
def test_file_parse(self):
# issue1134: all encodings outside latin-1 and utf-8 fail on
# multiline strings and long lines (>512 columns)
unload(TESTFN)
filename = TESTFN + ".py"
f = open(filename, "w", encoding="cp1252")
sys.path.insert(0, os.curdir)
try:
with f:
f.write("# -*- coding: cp1252 -*-\n")
f.write("'''A short string\n")
f.write("'''\n")
f.write("'A very long string %s'\n" % ("X" * 1000))
importlib.invalidate_caches()
__import__(TESTFN)
finally:
del sys.path[0]
unlink(filename)
unlink(filename + "c")
unlink(filename + "o")
unload(TESTFN)
rmtree('__pycache__')
def test_error_from_string(self):
# See http://bugs.python.org/issue6289
input = "# coding: ascii\n\N{SNOWMAN}".encode('utf-8')
with self.assertRaises(SyntaxError) as c:
compile(input, "<string>", "exec")
expected = "'ascii' codec can't decode byte 0xe2 in position 16: " \
"ordinal not in range(128)"
self.assertTrue(c.exception.args[0].startswith(expected),
msg=c.exception.args[0])
class AbstractSourceEncodingTest:
def test_default_coding(self):
src = (b'print(ascii("\xc3\xa4"))\n')
self.check_script_output(src, br"'\xe4'")
def test_first_coding_line(self):
src = (b'#coding:iso8859-15\n'
b'print(ascii("\xc3\xa4"))\n')
self.check_script_output(src, br"'\xc3\u20ac'")
def test_second_coding_line(self):
src = (b'#\n'
b'#coding:iso8859-15\n'
b'print(ascii("\xc3\xa4"))\n')
self.check_script_output(src, br"'\xc3\u20ac'")
def test_third_coding_line(self):
# Only first two lines are tested for a magic comment.
src = (b'#\n'
b'#\n'
b'#coding:iso8859-15\n'
b'print(ascii("\xc3\xa4"))\n')
self.check_script_output(src, br"'\xe4'")
def test_double_coding_line(self):
# If the first line matches the second line is ignored.
src = (b'#coding:iso8859-15\n'
b'#coding:latin1\n'
b'print(ascii("\xc3\xa4"))\n')
self.check_script_output(src, br"'\xc3\u20ac'")
def test_double_coding_same_line(self):
src = (b'#coding:iso8859-15 coding:latin1\n'
b'print(ascii("\xc3\xa4"))\n')
self.check_script_output(src, br"'\xc3\u20ac'")
def test_first_non_utf8_coding_line(self):
src = (b'#coding:iso-8859-15 \xa4\n'
b'print(ascii("\xc3\xa4"))\n')
self.check_script_output(src, br"'\xc3\u20ac'")
def test_second_non_utf8_coding_line(self):
src = (b'\n'
b'#coding:iso-8859-15 \xa4\n'
b'print(ascii("\xc3\xa4"))\n')
self.check_script_output(src, br"'\xc3\u20ac'")
def test_utf8_bom(self):
src = (b'\xef\xbb\xbfprint(ascii("\xc3\xa4"))\n')
self.check_script_output(src, br"'\xe4'")
def test_utf8_bom_and_utf8_coding_line(self):
src = (b'\xef\xbb\xbf#coding:utf-8\n'
b'print(ascii("\xc3\xa4"))\n')
self.check_script_output(src, br"'\xe4'")
class BytesSourceEncodingTest(AbstractSourceEncodingTest, unittest.TestCase):
def check_script_output(self, src, expected):
with captured_stdout() as stdout:
exec(src)
out = stdout.getvalue().encode('latin1')
self.assertEqual(out.rstrip(), expected)
class FileSourceEncodingTest(AbstractSourceEncodingTest, unittest.TestCase):
def check_script_output(self, src, expected):
with tempfile.TemporaryDirectory() as tmpd:
fn = os.path.join(tmpd, 'test.py')
with open(fn, 'wb') as fp:
fp.write(src)
res = script_helper.assert_python_ok(fn)
self.assertEqual(res.out.rstrip(), expected)
if __name__ == "__main__":
unittest.main()
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