def _testField(self):
f = Field(name='Title',
id="title",
rule='h1.text()',
type='list',
other='222')
def _testItem(self):
test_item = Item(test="a", ddd="ff")
"ddd" in test_item
"adads" in test_item
test_item["aaa"] = "c"
test_item['f1'] = Field(name='title', rule='b')
