1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
from copy import copy
import sqlalchemy as sa
from pytest import raises
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy_utils import get_column_key
class TestGetColumnKey(object):
def setup_method(self, method):
Base = declarative_base()
class Building(Base):
__tablename__ = 'building'
id = sa.Column(sa.Integer, primary_key=True)
name = sa.Column('_name', sa.Unicode(255))
class Movie(Base):
__tablename__ = 'movie'
id = sa.Column(sa.Integer, primary_key=True)
self.Building = Building
self.Movie = Movie
def test_supports_aliases(self):
assert (
get_column_key(self.Building, self.Building.__table__.c.id)
==
'id'
)
assert (
get_column_key(self.Building, self.Building.__table__.c._name)
==
'name'
)
def test_supports_vague_matching_of_column_objects(self):
column = copy(self.Building.__table__.c._name)
assert get_column_key(self.Building, column) == 'name'
def test_throws_value_error_for_unknown_column(self):
with raises(sa.orm.exc.UnmappedColumnError):
get_column_key(self.Building, self.Movie.__table__.c.id)
|
