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 pytest
import sqlalchemy as sa
from sqlalchemy_utils import get_column_key
@pytest.fixture
def Building(Base):
class Building(Base):
__tablename__ = 'building'
id = sa.Column(sa.Integer, primary_key=True)
name = sa.Column('_name', sa.Unicode(255))
return Building
@pytest.fixture
def Movie(Base):
class Movie(Base):
__tablename__ = 'movie'
id = sa.Column(sa.Integer, primary_key=True)
return Movie
class TestGetColumnKey:
def test_supports_aliases(self, Building):
assert (
get_column_key(Building, Building.__table__.c.id) ==
'id'
)
assert (
get_column_key(Building, Building.__table__.c._name) ==
'name'
)
def test_supports_vague_matching_of_column_objects(self, Building):
column = copy(Building.__table__.c._name)
assert get_column_key(Building, column) == 'name'
def test_throws_value_error_for_unknown_column(self, Building, Movie):
with pytest.raises(sa.orm.exc.UnmappedColumnError):
get_column_key(Building, Movie.__table__.c.id)
|
