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import os
from twisted.trial import unittest
from scrapy.contrib_exp.djangoitem import DjangoItem, Field
os.environ['DJANGO_SETTINGS_MODULE'] = 'scrapy.tests.test_djangoitem.settings'
try:
import django
except ImportError:
django = None
if django:
from .models import Person
else:
Person = None
class BasePersonItem(DjangoItem):
django_model = Person
class NewFieldPersonItem(BasePersonItem):
other = Field()
class OverrideFieldPersonItem(BasePersonItem):
age = Field(default=1)
class DjangoItemTest(unittest.TestCase):
def setUp(self):
if not django:
raise unittest.SkipTest("Django is not available")
def test_base(self):
i = BasePersonItem()
self.assertEqual(i.fields.keys(), ['age', 'name'])
def test_new_fields(self):
i = NewFieldPersonItem()
self.assertEqual(i.fields.keys(), ['age', 'other', 'name'])
def test_override_field(self):
i = OverrideFieldPersonItem()
self.assertEqual(i.fields.keys(), ['age', 'name'])
self.assertEqual(i.fields['age'], {'default': 1})
def test_save(self):
i = BasePersonItem()
self.assertEqual(i.fields.keys(), ['age', 'name'])
i['name'] = 'John'
i['age'] = '22'
person = i.save(commit=False)
self.assertEqual(person.name, 'John')
self.assertEqual(person.age, '22')
def test_override_save(self):
i = OverrideFieldPersonItem()
i['name'] = 'John'
person = i.save(commit=False)
self.assertEqual(person.name, 'John')
self.assertEqual(person.age, 1)
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