def test_from_db_value_correct_value_python(self):
f = JSignatureField()
val = [{"x": [1, 2], "y": [3, 4]}]
self.assertEquals(val, f.from_db_value(val))
def test_from_db_value_correct_value_json(self):
f = JSignatureField()
val = [{"x": [1, 2], "y": [3, 4]}]
val_str = '[{"x":[1,2], "y":[3,4]}]'
self.assertEquals(val, f.from_db_value(val_str))
def test_from_db_value_empty(self):
f = JSignatureField()
for val in ['', [], '[]']:
self.assertIsNone(f.from_db_value(val))