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import yaml
import pprint
import datetime
try:
set
except NameError:
from sets import Set as set
import yaml.tokens
def execute(code):
exec code
return value
def _make_objects():
global MyLoader, MyDumper, MyTestClass1, MyTestClass2, MyTestClass3, YAMLObject1, YAMLObject2, \
AnObject, AnInstance, AState, ACustomState, InitArgs, InitArgsWithState, \
NewArgs, NewArgsWithState, Reduce, ReduceWithState, MyInt, MyList, MyDict, \
FixedOffset, today, execute
class MyLoader(yaml.Loader):
pass
class MyDumper(yaml.Dumper):
pass
class MyTestClass1:
def __init__(self, x, y=0, z=0):
self.x = x
self.y = y
self.z = z
def __eq__(self, other):
if isinstance(other, MyTestClass1):
return self.__class__, self.__dict__ == other.__class__, other.__dict__
else:
return False
def construct1(constructor, node):
mapping = constructor.construct_mapping(node)
return MyTestClass1(**mapping)
def represent1(representer, native):
return representer.represent_mapping("!tag1", native.__dict__)
yaml.add_constructor("!tag1", construct1, Loader=MyLoader)
yaml.add_representer(MyTestClass1, represent1, Dumper=MyDumper)
class MyTestClass2(MyTestClass1, yaml.YAMLObject):
yaml_loader = MyLoader
yaml_dumper = MyDumper
yaml_tag = "!tag2"
def from_yaml(cls, constructor, node):
x = constructor.construct_yaml_int(node)
return cls(x=x)
from_yaml = classmethod(from_yaml)
def to_yaml(cls, representer, native):
return representer.represent_scalar(cls.yaml_tag, str(native.x))
to_yaml = classmethod(to_yaml)
class MyTestClass3(MyTestClass2):
yaml_tag = "!tag3"
def from_yaml(cls, constructor, node):
mapping = constructor.construct_mapping(node)
if '=' in mapping:
x = mapping['=']
del mapping['=']
mapping['x'] = x
return cls(**mapping)
from_yaml = classmethod(from_yaml)
def to_yaml(cls, representer, native):
return representer.represent_mapping(cls.yaml_tag, native.__dict__)
to_yaml = classmethod(to_yaml)
class YAMLObject1(yaml.YAMLObject):
yaml_loader = MyLoader
yaml_dumper = MyDumper
yaml_tag = '!foo'
def __init__(self, my_parameter=None, my_another_parameter=None):
self.my_parameter = my_parameter
self.my_another_parameter = my_another_parameter
def __eq__(self, other):
if isinstance(other, YAMLObject1):
return self.__class__, self.__dict__ == other.__class__, other.__dict__
else:
return False
class YAMLObject2(yaml.YAMLObject):
yaml_loader = MyLoader
yaml_dumper = MyDumper
yaml_tag = '!bar'
def __init__(self, foo=1, bar=2, baz=3):
self.foo = foo
self.bar = bar
self.baz = baz
def __getstate__(self):
return {1: self.foo, 2: self.bar, 3: self.baz}
def __setstate__(self, state):
self.foo = state[1]
self.bar = state[2]
self.baz = state[3]
def __eq__(self, other):
if isinstance(other, YAMLObject2):
return self.__class__, self.__dict__ == other.__class__, other.__dict__
else:
return False
class AnObject(object):
def __new__(cls, foo=None, bar=None, baz=None):
self = object.__new__(cls)
self.foo = foo
self.bar = bar
self.baz = baz
return self
def __cmp__(self, other):
return cmp((type(self), self.foo, self.bar, self.baz),
(type(other), other.foo, other.bar, other.baz))
def __eq__(self, other):
return type(self) is type(other) and \
(self.foo, self.bar, self.baz) == (other.foo, other.bar, other.baz)
class AnInstance:
def __init__(self, foo=None, bar=None, baz=None):
self.foo = foo
self.bar = bar
self.baz = baz
def __cmp__(self, other):
return cmp((type(self), self.foo, self.bar, self.baz),
(type(other), other.foo, other.bar, other.baz))
def __eq__(self, other):
return type(self) is type(other) and \
(self.foo, self.bar, self.baz) == (other.foo, other.bar, other.baz)
class AState(AnInstance):
def __getstate__(self):
return {
'_foo': self.foo,
'_bar': self.bar,
'_baz': self.baz,
}
def __setstate__(self, state):
self.foo = state['_foo']
self.bar = state['_bar']
self.baz = state['_baz']
class ACustomState(AnInstance):
def __getstate__(self):
return (self.foo, self.bar, self.baz)
def __setstate__(self, state):
self.foo, self.bar, self.baz = state
class InitArgs(AnInstance):
def __getinitargs__(self):
return (self.foo, self.bar, self.baz)
def __getstate__(self):
return {}
class InitArgsWithState(AnInstance):
def __getinitargs__(self):
return (self.foo, self.bar)
def __getstate__(self):
return self.baz
def __setstate__(self, state):
self.baz = state
class NewArgs(AnObject):
def __getnewargs__(self):
return (self.foo, self.bar, self.baz)
def __getstate__(self):
return {}
class NewArgsWithState(AnObject):
def __getnewargs__(self):
return (self.foo, self.bar)
def __getstate__(self):
return self.baz
def __setstate__(self, state):
self.baz = state
class Reduce(AnObject):
def __reduce__(self):
return self.__class__, (self.foo, self.bar, self.baz)
class ReduceWithState(AnObject):
def __reduce__(self):
return self.__class__, (self.foo, self.bar), self.baz
def __setstate__(self, state):
self.baz = state
class MyInt(int):
def __eq__(self, other):
return type(self) is type(other) and int(self) == int(other)
class MyList(list):
def __init__(self, n=1):
self.extend([None]*n)
def __eq__(self, other):
return type(self) is type(other) and list(self) == list(other)
class MyDict(dict):
def __init__(self, n=1):
for k in range(n):
self[k] = None
def __eq__(self, other):
return type(self) is type(other) and dict(self) == dict(other)
class FixedOffset(datetime.tzinfo):
def __init__(self, offset, name):
self.__offset = datetime.timedelta(minutes=offset)
self.__name = name
def utcoffset(self, dt):
return self.__offset
def tzname(self, dt):
return self.__name
def dst(self, dt):
return datetime.timedelta(0)
today = datetime.date.today()
def _load_code(expression):
return eval(expression)
def _serialize_value(data):
if isinstance(data, list):
return '[%s]' % ', '.join(map(_serialize_value, data))
elif isinstance(data, dict):
items = []
for key, value in data.items():
key = _serialize_value(key)
value = _serialize_value(value)
items.append("%s: %s" % (key, value))
items.sort()
return '{%s}' % ', '.join(items)
elif isinstance(data, datetime.datetime):
return repr(data.utctimetuple())
elif isinstance(data, unicode):
return data.encode('utf-8')
elif isinstance(data, float) and data != data:
return '?'
else:
return str(data)
def test_constructor_types(data_filename, code_filename, verbose=False):
_make_objects()
native1 = None
native2 = None
try:
native1 = list(yaml.load_all(open(data_filename, 'rb'), Loader=MyLoader))
if len(native1) == 1:
native1 = native1[0]
native2 = _load_code(open(code_filename, 'rb').read())
try:
if native1 == native2:
return
except TypeError:
pass
if verbose:
print "SERIALIZED NATIVE1:"
print _serialize_value(native1)
print "SERIALIZED NATIVE2:"
print _serialize_value(native2)
assert _serialize_value(native1) == _serialize_value(native2), (native1, native2)
finally:
if verbose:
print "NATIVE1:"
pprint.pprint(native1)
print "NATIVE2:"
pprint.pprint(native2)
test_constructor_types.unittest = ['.data', '.code']
if __name__ == '__main__':
import sys, test_constructor
sys.modules['test_constructor'] = sys.modules['__main__']
import test_appliance
test_appliance.run(globals())
|
