def test_delete_raises_without_name():
''' can't delete a value from obj dict without a name as a key '''
f = Field()
obj = object()
with pytest.raises(AttributeError):
f.delete(obj)
class Torrent(Item):
@prepare
def prep(self, soup):
cats, links, seeders, leechers = soup.findAll('td')
soup._links = links.findAll('a')
soup._match = re.search('Uploaded (.*), Size (.*), ULed by (.*)',
links.find('font').get_text()).groups(0)
soup._seeders = seeders.get_text()
soup._leechers = leechers.get_text()
name = S._links[0].get_text()
link = S._links[0]['href']
magnet = S._links[1]['href']
@Field
def torrent(soup):
try:
return soup._links[2]['href']
except IndexError:
return None
created = S._match[0]
size = S._match[1]
user = S._match[2]
seeders = Field(lambda s: int(s._seeders))
leechers = Field(lambda s: int(s._leechers))
def test_get_raises_without_name():
''' can't get a value in obj dict without a name as a key '''
f = Field()
obj = object()
with pytest.raises(AttributeError):
f.get(obj)
def test_set_model_name_twice():
''' fields can be set to a model by name only once '''
f = Field()
f.model_name = "model1"
with pytest.raises(AttributeError):
f.model_name = "model2"
assert f.model_name == "model1"
def test_basic_field(self):
from declare import Field
constructor = Mock(spec=[])
field = Field(constructor)
value = field._compute(sentinel.soup)
constructor.assert_called_once_with(sentinel.soup)
self.assertEqual(value, constructor())
def test_set_model_name_twice():
''' fields can be set to a model by name only once '''
f = Field()
f.model_name = "model1"
with pytest.raises(AttributeError):
f.model_name = "model2"
assert f.model_name == "model1"
def test_wrong_typedef_type():
''' typedef must be instanceof or subclassof TypeDefinition or None '''
# None is allowed
Field(typedef=None)
with pytest.raises(TypeError):
Field(typedef=5)
with pytest.raises(TypeError):
Field(typedef=int)
def test_field_mixin_finds_fields_and_subclasses():
''' All instances of ``field.Field`` and its subclasses are added to
``Meta['fields']``. '''
class Subclass(Field):
pass
f = Field()
g = Subclass(typedef=TypeDefinition())
class Model(metaclass=ModelMetaclass):
model_f = f
model_g = g
other = list()
fields = Model.Meta.fields
fields_by_name = Model.Meta.fields_by_model_name
# Keyed by the class's attr keys
assert 'model_f' in fields_by_name
assert 'model_g' in fields_by_name
# Objects are not wrapped at instantiation
assert fields_by_name['model_f'] is f
assert fields_by_name['model_g'] is g
# Order and count
assert len(fields) == 2
assert fields == [f, g]
# Non-fields are not included
assert 'other' not in fields
def test_with_field(self):
from declare import Field, MapField
constructor = Mock(spec=[], return_value=[1, 2, 3])
argument_field = Field(constructor)
mapped_function = lambda x: x * 2
field = MapField(mapped_function, argument_field)
value = field._compute(sentinel.soup)
constructor.assert_called_once_with(sentinel.soup)
self.assertEqual(value, [2, 4, 6])
class Point(Item):
x = Field(lambda s: s['x'])
y = MAGIC['y']
class Model(metaclass=ModelMetaclass):
f = Field()
def test_typedef_class():
''' passing a typedef class will store an instance of the class '''
field = Field(typedef=TypeDefinition)
assert field.typedef is not TypeDefinition
class Container(object):
''' Subclass object so instances have a __dict__ '''
field = Field()
def test_delete_raises_without_name():
''' can't delete a value from obj dict without a name as a key '''
f = Field()
obj = object()
with pytest.raises(AttributeError):
f.delete(obj)
def test_get_raises_without_name():
''' can't get a value in obj dict without a name as a key '''
f = Field()
obj = object()
with pytest.raises(AttributeError):
f.get(obj)