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import yaml
import codecs, StringIO, tempfile, os, os.path
def _unicode_open(file, encoding, errors='strict'):
info = codecs.lookup(encoding)
if isinstance(info, tuple):
reader = info[2]
writer = info[3]
else:
reader = info.streamreader
writer = info.streamwriter
srw = codecs.StreamReaderWriter(file, reader, writer, errors)
srw.encoding = encoding
return srw
def test_unicode_input(unicode_filename, verbose=False):
data = open(unicode_filename, 'rb').read().decode('utf-8')
value = ' '.join(data.split())
output = yaml.load(_unicode_open(StringIO.StringIO(data.encode('utf-8')), 'utf-8'))
assert output == value, (output, value)
for input in [data, data.encode('utf-8'),
codecs.BOM_UTF8+data.encode('utf-8'),
codecs.BOM_UTF16_BE+data.encode('utf-16-be'),
codecs.BOM_UTF16_LE+data.encode('utf-16-le')]:
if verbose:
print "INPUT:", repr(input[:10]), "..."
output = yaml.load(input)
assert output == value, (output, value)
output = yaml.load(StringIO.StringIO(input))
assert output == value, (output, value)
test_unicode_input.unittest = ['.unicode']
def test_unicode_input_errors(unicode_filename, verbose=False):
data = open(unicode_filename, 'rb').read().decode('utf-8')
for input in [data.encode('latin1', 'ignore'),
data.encode('utf-16-be'), data.encode('utf-16-le'),
codecs.BOM_UTF8+data.encode('utf-16-be'),
codecs.BOM_UTF16_BE+data.encode('utf-16-le'),
codecs.BOM_UTF16_LE+data.encode('utf-8')+'!']:
try:
yaml.load(input)
except yaml.YAMLError, exc:
if verbose:
print exc
else:
raise AssertionError("expected an exception")
try:
yaml.load(StringIO.StringIO(input))
except yaml.YAMLError, exc:
if verbose:
print exc
else:
raise AssertionError("expected an exception")
test_unicode_input_errors.unittest = ['.unicode']
def test_unicode_output(unicode_filename, verbose=False):
data = open(unicode_filename, 'rb').read().decode('utf-8')
value = ' '.join(data.split())
for allow_unicode in [False, True]:
data1 = yaml.dump(value, allow_unicode=allow_unicode)
for encoding in [None, 'utf-8', 'utf-16-be', 'utf-16-le']:
stream = StringIO.StringIO()
yaml.dump(value, _unicode_open(stream, 'utf-8'), encoding=encoding, allow_unicode=allow_unicode)
data2 = stream.getvalue()
data3 = yaml.dump(value, encoding=encoding, allow_unicode=allow_unicode)
stream = StringIO.StringIO()
yaml.dump(value, stream, encoding=encoding, allow_unicode=allow_unicode)
data4 = stream.getvalue()
for copy in [data1, data2, data3, data4]:
if allow_unicode:
try:
copy[4:].encode('ascii')
except (UnicodeDecodeError, UnicodeEncodeError), exc:
if verbose:
print exc
else:
raise AssertionError("expected an exception")
else:
copy[4:].encode('ascii')
assert isinstance(data1, str), (type(data1), encoding)
data1.decode('utf-8')
assert isinstance(data2, str), (type(data2), encoding)
data2.decode('utf-8')
if encoding is None:
assert isinstance(data3, unicode), (type(data3), encoding)
assert isinstance(data4, unicode), (type(data4), encoding)
else:
assert isinstance(data3, str), (type(data3), encoding)
data3.decode(encoding)
assert isinstance(data4, str), (type(data4), encoding)
data4.decode(encoding)
test_unicode_output.unittest = ['.unicode']
def test_file_output(unicode_filename, verbose=False):
data = open(unicode_filename, 'rb').read().decode('utf-8')
handle, filename = tempfile.mkstemp()
os.close(handle)
try:
stream = StringIO.StringIO()
yaml.dump(data, stream, allow_unicode=True)
data1 = stream.getvalue()
stream = open(filename, 'wb')
yaml.dump(data, stream, allow_unicode=True)
stream.close()
data2 = open(filename, 'rb').read()
stream = open(filename, 'wb')
yaml.dump(data, stream, encoding='utf-16-le', allow_unicode=True)
stream.close()
data3 = open(filename, 'rb').read().decode('utf-16-le')[1:].encode('utf-8')
stream = _unicode_open(open(filename, 'wb'), 'utf-8')
yaml.dump(data, stream, allow_unicode=True)
stream.close()
data4 = open(filename, 'rb').read()
assert data1 == data2, (data1, data2)
assert data1 == data3, (data1, data3)
assert data1 == data4, (data1, data4)
finally:
if os.path.exists(filename):
os.unlink(filename)
test_file_output.unittest = ['.unicode']
def test_unicode_transfer(unicode_filename, verbose=False):
data = open(unicode_filename, 'rb').read().decode('utf-8')
for encoding in [None, 'utf-8', 'utf-16-be', 'utf-16-le']:
input = data
if encoding is not None:
input = (u'\ufeff'+input).encode(encoding)
output1 = yaml.emit(yaml.parse(input), allow_unicode=True)
stream = StringIO.StringIO()
yaml.emit(yaml.parse(input), _unicode_open(stream, 'utf-8'),
allow_unicode=True)
output2 = stream.getvalue()
if encoding is None:
assert isinstance(output1, unicode), (type(output1), encoding)
else:
assert isinstance(output1, str), (type(output1), encoding)
output1.decode(encoding)
assert isinstance(output2, str), (type(output2), encoding)
output2.decode('utf-8')
test_unicode_transfer.unittest = ['.unicode']
if __name__ == '__main__':
import test_appliance
test_appliance.run(globals())
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