def test_spawn():
desc = 'foo'
f = Field(description=desc)
f1 = f.spawn(required=True)
# test spawn attributes are changed
assert f.required is False
assert f1.required is True
assert f.description == f1.description
# test spawn instances do not share key attr
assert f.key is None
class P0(ParamSet):
key0 = f
assert f.key == 'key0'
class P1(ParamSet):
key1 = f.spawn(null=True)
assert f.key == 'key0'
f.spawn(key='key2')
assert f.key == 'key0'
def test_spawn():
desc = 'foo'
f = Field(description=desc)
f1 = f.spawn(required=True)
assert f.required is False
assert f1.required is True
assert f.description == f1.description
def test_field_null_values():
f0 = Field(null_values=(None, 0), null=True)
assert None is f0.validate(None)
assert None is f0.validate(0)
assert '' == f0.validate('')
f1 = f0.spawn(null=False)
with pytest.raises(ValueError):
f1.validate(None)
with pytest.raises(ValueError):
f1.validate(0)
assert '' == f0.validate('')
# though null is not allowed, value will never be determined as null, so `null=False` won't take any effect
f2 = Field(null_values=(), null=False)
assert None is f2.validate(None)
class P(ParamSet):
f0 = Field(required=True)
f1 = Field()
def test_field_null():
f0 = Field(null=True)
assert None is f0.validate(None)
assert None is f0.validate('')
assert None is f0.validate(u_(''))
# 0 is not null, only '' and None are
assert 0 is f0.validate(0)
f1 = Field(null=False)
with pytest.raises(ValueError):
f1.validate(None)
with pytest.raises(ValueError):
f1.validate('')
with pytest.raises(ValueError):
f1.validate(u_(''))
assert 0 is f1.validate(0)
class P(ParamSet):
check_addtional = True
f0 = Field()
class P(ParamSet):
f0 = Field(key='0f')
def test_field_choices():
f0 = Field(null=False, choices=[1, '2', ''])
# null=False priority is higher than choices
with pytest.raises(ValueError):
f0.validate('')
f0.validate(1)
f0.validate('2')
with pytest.raises(ValueError):
f0.validate('1')
with pytest.raises(ValueError):
f0.validate(2)
def test_field_convert():
f = Field()
f.validate('whatever', convert=True)
class MultiTypeField(Field):
value_type = (bool, int)
f = MultiTypeField()
f.validate('True', convert=True)
f.validate('1', convert=True)
f.validate(False, convert=True)
f.validate(0, convert=True)
class P(ParamSet):
f0 = Field()
f1 = Field(default=1)
class P(ParamSet):
f0 = Field(required=True, default=f0_default)
f1 = Field()
class P(ParamSet):
no_additional_keys = True
f0 = Field()
class ItemParams(ParamSet):
a = Field(required=True)
