def __init__(self, obj, interface_name, exclude=None):
self._interface_name = interface_name
self._obj = obj
self._ro_props = OrderedDict()
self._rw_props = OrderedDict()
self._methods = []
self._signals = []
self._exclude = exclude
if isinstance(obj, HasTraits):
self._parse_traits()
python类HasTraits()的实例源码
def test_ctor_without_default_value(self):
# -- IMPLICIT: default_value = Color.red (first enum-value)
class Example2(HasTraits):
color = UseEnum(Color)
example = Example2()
self.assertEqual(example.color, Color.red)
def test_ctor_with_default_value_as_enum_value(self):
# -- CONVERT: number => Enum value (item)
class Example2(HasTraits):
color = UseEnum(Color, default_value=Color.green)
example = Example2()
self.assertEqual(example.color, Color.green)
def test_ctor_with_default_value_none_and_not_allow_none(self):
# -- IMPLICIT: default_value = Color.red (first enum-value)
class Example2(HasTraits):
color1 = UseEnum(Color, default_value=None, allow_none=False)
color2 = UseEnum(Color, default_value=None)
example = Example2()
self.assertEqual(example.color1, Color.red)
self.assertEqual(example.color2, Color.red)
def test_ctor_with_default_value_none_and_allow_none(self):
class Example2(HasTraits):
color1 = UseEnum(Color, default_value=None, allow_none=True)
color2 = UseEnum(Color, allow_none=True)
example = Example2()
self.assertIs(example.color1, None)
self.assertIs(example.color2, None)
def test_assign_none_without_allow_none_resets_to_default_value(self):
class Example2(HasTraits):
color1 = UseEnum(Color, allow_none=False)
color2 = UseEnum(Color)
example = Example2()
example.color1 = None
example.color2 = None
self.assertIs(example.color1, Color.red)
self.assertIs(example.color2, Color.red)
def test_assign_bad_value_with_to_enum_or_none(self):
class Example2(HasTraits):
color = UseEnum(Color, allow_none=True)
example = Example2()
with self.assertRaises(TraitError):
example.color = "BAD_VALUE"
def test_ctor_without_default_value(self):
# -- IMPLICIT: default_value = Color.red (first enum-value)
class Example2(HasTraits):
color = UseEnum(Color)
example = Example2()
self.assertEqual(example.color, Color.red)
def test_ctor_with_default_value_as_enum_value(self):
# -- CONVERT: number => Enum value (item)
class Example2(HasTraits):
color = UseEnum(Color, default_value=Color.green)
example = Example2()
self.assertEqual(example.color, Color.green)
def test_ctor_with_default_value_none_and_not_allow_none(self):
# -- IMPLICIT: default_value = Color.red (first enum-value)
class Example2(HasTraits):
color1 = UseEnum(Color, default_value=None, allow_none=False)
color2 = UseEnum(Color, default_value=None)
example = Example2()
self.assertEqual(example.color1, Color.red)
self.assertEqual(example.color2, Color.red)
def test_ctor_with_default_value_none_and_allow_none(self):
class Example2(HasTraits):
color1 = UseEnum(Color, default_value=None, allow_none=True)
color2 = UseEnum(Color, allow_none=True)
example = Example2()
self.assertIs(example.color1, None)
self.assertIs(example.color2, None)
def test_assign_none_without_allow_none_resets_to_default_value(self):
class Example2(HasTraits):
color1 = UseEnum(Color, allow_none=False)
color2 = UseEnum(Color)
example = Example2()
example.color1 = None
example.color2 = None
self.assertIs(example.color1, Color.red)
self.assertIs(example.color2, Color.red)
def test_assign_bad_value_with_to_enum_or_none(self):
class Example2(HasTraits):
color = UseEnum(Color, allow_none=True)
example = Example2()
with self.assertRaises(TraitError):
example.color = "BAD_VALUE"
def AnonymousMapping(**traits):
"""Create an anonymous HasTraits mapping
This is used when a JSONSchema defines an object inline, rather than in
a separate statement
Example
-------
>>> Foo = AnonymousMapping(val=T.Integer())
>>> f = Foo(val=4)
>>> type(f)
<class 'traitlets.traitlets.AnonymousMapping'>
"""
return T.MetaHasTraits('AnonymousMapping', (JSONHasTraits,), traits)
def test_traits(trait, failcases, passcases):
obj = T.HasTraits() # needed to pass to validate()
for passcase in passcases:
trait._validate(obj, passcase)
for failcase in failcases:
with pytest.raises(T.TraitError):
trait._validate(obj, failcase)
def test_ctor_without_default_value(self):
# -- IMPLICIT: default_value = Color.red (first enum-value)
class Example2(HasTraits):
color = UseEnum(Color)
example = Example2()
self.assertEqual(example.color, Color.red)
def test_ctor_with_default_value_as_enum_value(self):
# -- CONVERT: number => Enum value (item)
class Example2(HasTraits):
color = UseEnum(Color, default_value=Color.green)
example = Example2()
self.assertEqual(example.color, Color.green)
def test_ctor_with_default_value_none_and_not_allow_none(self):
# -- IMPLICIT: default_value = Color.red (first enum-value)
class Example2(HasTraits):
color1 = UseEnum(Color, default_value=None, allow_none=False)
color2 = UseEnum(Color, default_value=None)
example = Example2()
self.assertEqual(example.color1, Color.red)
self.assertEqual(example.color2, Color.red)
def test_ctor_with_default_value_none_and_allow_none(self):
class Example2(HasTraits):
color1 = UseEnum(Color, default_value=None, allow_none=True)
color2 = UseEnum(Color, allow_none=True)
example = Example2()
self.assertIs(example.color1, None)
self.assertIs(example.color2, None)
def test_assign_none_without_allow_none_resets_to_default_value(self):
class Example2(HasTraits):
color1 = UseEnum(Color, allow_none=False)
color2 = UseEnum(Color)
example = Example2()
example.color1 = None
example.color2 = None
self.assertIs(example.color1, Color.red)
self.assertIs(example.color2, Color.red)
def test_assign_bad_value_with_to_enum_or_none(self):
class Example2(HasTraits):
color = UseEnum(Color, allow_none=True)
example = Example2()
with self.assertRaises(TraitError):
example.color = "BAD_VALUE"
