def test_field_custom_source_names_in_container():
f1 = Field(name='f1', source_names=['f1_source'])
assert not hasattr(f1, 'source_name')
assert f1.source_names == ['f1_source']
c1 = {'f1': 'f1_value'}
c2 = {'f1_source': 'f1_value'}
assert not f1.has_value_in(c1)
assert f1.get_value_in(c1) is None
assert f1.has_value_in(c2)
assert f1.get_value_in(c2) == 'f1_value'
def test_field_in_container():
f1 = Field(name='f1')
c1 = {'f1': 'f1_value'}
c2 = {'f2': 'f2_value'}
assert f1.has_value_in(c1)
assert not f1.has_value_in(c2)
assert f1.get_value_in(c1) == 'f1_value'
assert f1.get_value_in(c2) is None
assert f1.get_value_in(c2, 'default') == 'default'
f1.set_value_in(c2, 'new_value')
assert c2['f1'] == 'new_value'
def test_nested_field():
person_schema = Schema(
Field('first_name', default=None),
Field('last_name', default=None),
)
director = Field(name='director', mapping=person_schema, nullable=True)
assert director.has_value_in({'director': {}})
assert director.get_value_in({'director': {}}) == {}
assert director.get_value_in({'director': {'first_name': 'John', 'last_name': 'Smith'}}) == {
'first_name': 'John',
'last_name': 'Smith',
}
assert Schema(director).load({'director': {}}) == {'director': {'first_name': None, 'last_name': None}}
assert Schema(director).load({'director': None}) == {'director': None}