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from ruamel.yaml import YAML
import codecs
import tempfile
import os
import os.path
from ruamel.yaml.compat import StringIO, BytesIO
def test_unicode_input(unicode_filename, verbose=False):
yaml = YAML(typ='safe', pure=True)
with open(unicode_filename, 'rb') as fp:
data = fp.read().decode('utf-8')
value = ' '.join(data.split())
output = yaml.load(data)
assert output == value, (output, value)
output = yaml.load(StringIO(data))
assert output == value, (output, value)
for input in [
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(BytesIO(input))
assert output == value, (output, value)
test_unicode_input.unittest = ['.unicode']
def test_unicode_input_errors(unicode_filename, verbose=False):
yaml = YAML(typ='safe', pure=True)
with open(unicode_filename, 'rb') as fp:
data = fp.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') + b'!',
]:
try:
yaml.load(input)
except yaml.YAMLError as exc:
if verbose:
print(exc)
else:
raise AssertionError('expected an exception')
try:
yaml.load(BytesIO(input))
except yaml.YAMLError as 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):
yaml = YAML(typ='safe', pure=True)
with open(unicode_filename, 'rb') as fp:
data = fp.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()
yaml.dump(value, stream, encoding=encoding, allow_unicode=allow_unicode)
data2 = stream.getvalue()
data3 = yaml.dump(value, encoding=encoding, allow_unicode=allow_unicode)
if encoding is not None:
assert isinstance(data3, bytes)
data3 = data3.decode(encoding)
stream = BytesIO()
if encoding is None:
try:
yaml.dump(
value, stream, encoding=encoding, allow_unicode=allow_unicode
)
except TypeError as exc:
if verbose:
print(exc)
data4 = None
else:
raise AssertionError('expected an exception')
else:
yaml.dump(value, stream, encoding=encoding, allow_unicode=allow_unicode)
data4 = stream.getvalue()
if verbose:
print('BYTES:', data4[:50])
data4 = data4.decode(encoding)
for copy in [data1, data2, data3, data4]:
if copy is None:
continue
assert isinstance(copy, str)
if allow_unicode:
try:
copy[4:].encode('ascii')
except UnicodeEncodeError as exc:
if verbose:
print(exc)
else:
raise AssertionError('expected an exception')
else:
copy[4:].encode('ascii')
assert isinstance(data1, str), (type(data1), encoding)
assert isinstance(data2, str), (type(data2), encoding)
test_unicode_output.unittest = ['.unicode']
def test_file_output(unicode_filename, verbose=False):
yaml = YAML(typ='safe', pure=True)
with open(unicode_filename, 'rb') as fp:
data = fp.read().decode('utf-8')
handle, filename = tempfile.mkstemp()
os.close(handle)
try:
stream = StringIO()
yaml.dump(data, stream, allow_unicode=True)
data1 = stream.getvalue()
stream = BytesIO()
yaml.dump(data, stream, encoding='utf-16-le', allow_unicode=True)
data2 = stream.getvalue().decode('utf-16-le')[1:]
with open(filename, 'w', encoding='utf-16-le') as stream:
yaml.dump(data, stream, allow_unicode=True)
with open(filename, 'r', encoding='utf-16-le') as fp0:
data3 = fp0.read()
with open(filename, 'wb') as stream:
yaml.dump(data, stream, encoding='utf-8', allow_unicode=True)
with open(filename, 'r', encoding='utf-8') as fp0:
data4 = fp0.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):
yaml = YAML(typ='safe', pure=True)
with open(unicode_filename, 'rb') as fp:
data = fp.read().decode('utf-8')
for encoding in [None, 'utf-8', 'utf-16-be', 'utf-16-le']:
input = data
if encoding is not None:
input = ('\ufeff' + input).encode(encoding)
output1 = yaml.emit(yaml.parse(input), allow_unicode=True)
if encoding is None:
stream = StringIO()
else:
stream = BytesIO()
yaml.emit(yaml.parse(input), stream, allow_unicode=True)
output2 = stream.getvalue()
assert isinstance(output1, str), (type(output1), encoding)
if encoding is None:
assert isinstance(output2, str), (type(output1), encoding)
else:
assert isinstance(output2, bytes), (type(output1), encoding)
output2.decode(encoding)
test_unicode_transfer.unittest = ['.unicode']
if __name__ == '__main__':
import test_appliance
test_appliance.run(globals())
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