def test_serialize(self):
block = EmbedBlock(required=False)
block_val = EmbedValue('http://www.example.com/foo')
serialized_val = block.get_prep_value(block_val)
self.assertEqual(serialized_val, 'http://www.example.com/foo')
serialized_empty_val = block.get_prep_value(None)
self.assertEqual(serialized_empty_val, '')
def test_clean(self):
required_block = EmbedBlock()
nonrequired_block = EmbedBlock(required=False)
# a valid EmbedValue should return the same value on clean
cleaned_value = required_block.clean(EmbedValue('http://www.example.com/foo'))
self.assertIsInstance(cleaned_value, EmbedValue)
self.assertEqual(cleaned_value.url, 'http://www.example.com/foo')
cleaned_value = nonrequired_block.clean(EmbedValue('http://www.example.com/foo'))
self.assertIsInstance(cleaned_value, EmbedValue)
self.assertEqual(cleaned_value.url, 'http://www.example.com/foo')
# None should only be accepted for nonrequired blocks
cleaned_value = nonrequired_block.clean(None)
self.assertEqual(cleaned_value, None)
with self.assertRaises(ValidationError):
required_block.clean(None)
def test_render_form(self):
"""
The form field for an EmbedBlock should be a text input containing
the URL
"""
block = EmbedBlock()
form_html = block.render_form(EmbedValue('http://www.example.com/foo'), prefix='myembed')
self.assertIn('<input ', form_html)
self.assertIn('value="http://www.example.com/foo"', form_html)
def test_default(self):
block1 = EmbedBlock()
self.assertEqual(block1.get_default(), None)
block2 = EmbedBlock(default='')
self.assertEqual(block2.get_default(), None)
block3 = EmbedBlock(default=None)
self.assertEqual(block3.get_default(), None)
block4 = EmbedBlock(default='http://www.example.com/foo')
self.assertIsInstance(block4.get_default(), EmbedValue)
self.assertEqual(block4.get_default().url, 'http://www.example.com/foo')
block5 = EmbedBlock(default=EmbedValue('http://www.example.com/foo'))
self.assertIsInstance(block5.get_default(), EmbedValue)
self.assertEqual(block5.get_default().url, 'http://www.example.com/foo')