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"""
simple test case
"""
from elixir import *
import elixir
from elixir.py23compat import sort_list
def setup():
metadata.bind = 'sqlite:///'
# metadata.bind = 'postgres://@/test'
# metadata.bind.echo = True
elixir.options_defaults['shortnames'] = True
def teardown():
elixir.options_defaults['shortnames'] = False
def do_tst(inheritance, polymorphic, expected_res):
class A(Entity):
using_options(inheritance=inheritance, polymorphic=polymorphic)
data1 = Field(String(20))
class B(A):
using_options(inheritance=inheritance, polymorphic=polymorphic)
data2 = Field(String(20))
some_e = ManyToOne('E')
class C(B):
using_options(inheritance=inheritance, polymorphic=polymorphic)
data3 = Field(String(20))
class D(A):
using_options(inheritance=inheritance, polymorphic=polymorphic)
data4 = Field(String(20))
class E(A):
using_options(inheritance=inheritance, polymorphic=polymorphic)
many_b = OneToMany('B')
setup_all(True)
A(data1='a1')
B(data1='b1', data2='b2')
C(data1='c1', data2='c2', data3='c3')
D(data1='d1', data4='d4')
E(data1='e1')
session.commit()
session.clear()
res = {}
for class_ in (A, B, C, D, E):
res[class_.__name__] = class_.query.all()
sort_list(res[class_.__name__], key=lambda o: o.__class__.__name__)
for query_class in ('A', 'B', 'C', 'D', 'E'):
# print res[query_class], expected_res[query_class]
assert len(res[query_class]) == len(expected_res[query_class])
for real, expected in zip(res[query_class], expected_res[query_class]):
assert real.__class__.__name__ == expected
class TestInheritance(object):
def teardown(self):
cleanup_all(True)
# this is related to SA ticket 866
# http://www.sqlalchemy.org/trac/ticket/866
# the problem was caused by the fact that the attribute-based syntax left
# the class-attributes in place after initialization (in Elixir 0.4).
def test_missing_value(self):
class A(Entity):
pass
class B(A):
name = Field(String(30))
other = Field(Text)
setup_all()
create_all()
b1 = B(name="b1") # no value for other
session.commit()
def test_delete_parent(self):
class A(Entity):
using_options(inheritance='multi')
class B(A):
using_options(inheritance='multi')
name = Field(String(30))
setup_all(True)
b1 = B(name='b1')
session.commit()
A.table.delete().execute()
# this doesn't work on sqlite (because it relies on the database
# enforcing the foreign key constraint cascade rule).
# assert not B.table.select().execute().fetchall()
def test_inheritance_wh_schema(self):
# I can only test schema stuff on postgres
if metadata.bind.name != 'postgres':
print "schema test skipped"
return
class A(Entity):
using_options(inheritance="multi")
using_table_options(schema="test")
row_id = Field(Integer, primary_key=True)
thing1 = Field(String(20))
class B(A):
using_options(inheritance="multi")
using_table_options(schema="test")
thing2 = Field(String(20))
setup_all(True)
def test_inverse_matching_on_parent(self):
options_defaults['inheritance'] = 'multi'
class Person(Entity):
using_options(inheritance='multi')
name = Field(UnicodeText)
class Parent(Person):
using_options(inheritance='multi')
childs = ManyToMany('Child', tablename='child_parent',
inverse='parents')
class Child(Person):
using_options(inheritance='multi')
parents = ManyToMany('Parent', tablename='child_parent',
inverse='childs')
setup_all()
def test_singletable_inheritance(self):
do_tst('single', False, {
'A': ('A', 'A', 'A', 'A', 'A'),
'B': ('B', 'B', 'B', 'B', 'B'),
'C': ('C', 'C', 'C', 'C', 'C'),
'D': ('D', 'D', 'D', 'D', 'D'),
'E': ('E', 'E', 'E', 'E', 'E')
})
def test_polymorphic_singletable_inheritance(self):
do_tst('single', True, {
'A': ('A', 'B', 'C', 'D', 'E'),
'B': ('B', 'C'),
'C': ('C',),
'D': ('D',),
'E': ('E',),
})
def test_concrete_inheritance(self):
do_tst('concrete', False, {
'A': ('A',),
'B': ('B',),
'C': ('C',),
'D': ('D',),
'E': ('E',),
})
# def test_polymorphic_concrete_inheritance(self):
# to get this test to work, I need to duplicate parent relationships in
# the children. The problem is that the properties are setup post
# mapper setup, so I'll need to add some logic into the add_property
# method which I'm reluctant to do.
# do_tst('concrete', True, {
# 'A': ('A', 'B', 'C', 'D', 'E'),
# 'B': ('B', 'C'),
# 'C': ('C',),
# 'D': ('D',),
# 'E': ('E',),
# })
def test_multitable_inheritance(self):
do_tst('multi', False, {
'A': ('A', 'A', 'A', 'A', 'A'),
'B': ('B', 'B'),
'C': ('C',),
'D': ('D',),
'E': ('E',),
})
def test_polymorphic_multitable_inheritance(self):
do_tst('multi', True, {
'A': ('A', 'B', 'C', 'D', 'E'),
'B': ('B', 'C'),
'C': ('C',),
'D': ('D',),
'E': ('E',),
})
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