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import test.support, unittest
from test.support import TESTFN, unlink, unload
import importlib, os, sys
class CodingTest(unittest.TestCase):
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('# coding: cp949\na = 5\n', d)
self.assertEqual(d['a'], 5)
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)
sys.path.insert(0, os.curdir)
filename = TESTFN + ".py"
f = open(filename, "w")
try:
f.write("# -*- coding: cp1252 -*-\n")
f.write("'''A short string\n")
f.write("'''\n")
f.write("'A very long string %s'\n" % ("X" * 1000))
f.close()
importlib.invalidate_caches()
__import__(TESTFN)
finally:
f.close()
unlink(filename)
unlink(filename + "c")
unload(TESTFN)
del sys.path[0]
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))
def test_main():
test.support.run_unittest(CodingTest)
if __name__ == "__main__":
test_main()
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