def test_true(self):
self.assertTrue(ScrapyItemAdapter.is_item(ScrapyItem()))
self.assertTrue(ScrapyItemAdapter.is_item(ScrapySubclassedItem()))
self.assertTrue(
ScrapyItemAdapter.is_item(
ScrapySubclassedItem(name="asdf", value=1234)))
# field metadata
self.assertEqual(
get_field_meta_from_class(ScrapySubclassedItem, "name"),
MappingProxyType({"serializer": str}),
)
self.assertEqual(
get_field_meta_from_class(ScrapySubclassedItem, "value"),
MappingProxyType({"serializer": int}),
)
def test_repr_scrapy_item(self):
item = ScrapySubclassedItem(name="asdf", value=1234)
adapter = ItemAdapter(item)
# Scrapy fields are stored in a dict, which is not guarantied to be sorted in py35
self.assertTrue(
repr(adapter) == "<ItemAdapter for ScrapySubclassedItem(name='asdf', value=1234)>"
or repr(adapter) == "<ItemAdapter for ScrapySubclassedItem(value=1234, name='asdf')>",
)
def test_module_not_available(self):
self.assertFalse(
ScrapyItemAdapter.is_item(
ScrapySubclassedItem(name="asdf", value=1234)))
with self.assertRaises(
TypeError,
msg="ScrapySubclassedItem is not a valid item class"):
get_field_meta_from_class(ScrapySubclassedItem, "name")
def test_module_import_error(self):
with clear_itemadapter_imports():
from itemadapter.adapter import ScrapyItemAdapter
self.assertFalse(
ScrapyItemAdapter.is_item(
ScrapySubclassedItem(name="asdf", value=1234)))
with self.assertRaises(
TypeError,
msg="ScrapySubclassedItem is not a valid item class"):
get_field_meta_from_class(ScrapySubclassedItem, "name")
def test_false(self):
self.assertFalse(is_attrs_instance(int))
self.assertFalse(is_attrs_instance(sum))
self.assertFalse(is_attrs_instance(1234))
self.assertFalse(is_attrs_instance(object()))
self.assertFalse(is_attrs_instance(ScrapyItem()))
self.assertFalse(is_attrs_instance(ScrapySubclassedItem()))
self.assertFalse(is_attrs_instance("a string"))
self.assertFalse(is_attrs_instance(b"some bytes"))
self.assertFalse(is_attrs_instance({"a": "dict"}))
self.assertFalse(is_attrs_instance(["a", "list"]))
self.assertFalse(is_attrs_instance(("a", "tuple")))
self.assertFalse(is_attrs_instance({"a", "set"}))
self.assertFalse(is_attrs_instance(AttrsItem))
def test_false(self):
self.assertFalse(PydanticAdapter.is_item(int))
self.assertFalse(PydanticAdapter.is_item(sum))
self.assertFalse(PydanticAdapter.is_item(1234))
self.assertFalse(PydanticAdapter.is_item(object()))
self.assertFalse(PydanticAdapter.is_item(ScrapyItem()))
self.assertFalse(PydanticAdapter.is_item(AttrsItem()))
self.assertFalse(PydanticAdapter.is_item(DataClassItem()))
self.assertFalse(PydanticAdapter.is_item(ScrapySubclassedItem()))
self.assertFalse(PydanticAdapter.is_item("a string"))
self.assertFalse(PydanticAdapter.is_item(b"some bytes"))
self.assertFalse(PydanticAdapter.is_item({"a": "dict"}))
self.assertFalse(PydanticAdapter.is_item(["a", "list"]))
self.assertFalse(PydanticAdapter.is_item(("a", "tuple")))
self.assertFalse(PydanticAdapter.is_item({"a", "set"}))
self.assertFalse(PydanticAdapter.is_item(PydanticModel))
def test_true_scrapy(self):
self.assertTrue(is_item(ScrapyItem()))
self.assertTrue(is_item(ScrapySubclassedItem(name="asdf", value=1234)))
self.assertTrue(ItemAdapter.is_item_class(ScrapyItem))
self.assertTrue(ItemAdapter.is_item_class(ScrapySubclassedItem))
def test_true(self):
self.assertTrue(is_scrapy_item(ScrapyItem()))
self.assertTrue(is_scrapy_item(ScrapySubclassedItem()))
self.assertTrue(
is_scrapy_item(ScrapySubclassedItem(name="asdf", value=1234)))
def test_module_not_available(self):
self.assertFalse(
is_scrapy_item(ScrapySubclassedItem(name="asdf", value=1234)))
def test_repr_scrapy_item(self):
item = ScrapySubclassedItem(name="asdf", value=1234)
adapter = ItemAdapter(item)
self.assertEqual(
repr(adapter),
"<ItemAdapter for ScrapySubclassedItem(name='asdf', value=1234)>")