test_bind.py :  » Database » SQLAlchemy » SQLAlchemy-0.6.0 » test » orm » Python Open Source

Home
Python Open Source
1.3.1.2 Python
2.Ajax
3.Aspect Oriented
4.Blog
5.Build
6.Business Application
7.Chart Report
8.Content Management Systems
9.Cryptographic
10.Database
11.Development
12.Editor
13.Email
14.ERP
15.Game 2D 3D
16.GIS
17.GUI
18.IDE
19.Installer
20.IRC
21.Issue Tracker
22.Language Interface
23.Log
24.Math
25.Media Sound Audio
26.Mobile
27.Network
28.Parser
29.PDF
30.Project Management
31.RSS
32.Search
33.Security
34.Template Engines
35.Test
36.UML
37.USB Serial
38.Web Frameworks
39.Web Server
40.Web Services
41.Web Unit
42.Wiki
43.Windows
44.XML
Python Open Source » Database » SQLAlchemy 
SQLAlchemy » SQLAlchemy 0.6.0 » test » orm » test_bind.py
from sqlalchemy.test.testing import assert_raises,assert_raises_message
from sqlalchemy import MetaData,Integer
from sqlalchemy.test.schema import Table
from sqlalchemy.test.schema import Column
from sqlalchemy.orm import mapper,create_session
import sqlalchemy as sa
from sqlalchemy.test import testing
from test.orm import _base


class BindTest(_base.MappedTest):
    @classmethod
    def define_tables(cls, metadata):
        Table('test_table', metadata,
              Column('id', Integer, primary_key=True,
                     test_needs_autoincrement=True),
              Column('data', Integer))

    @classmethod
    def setup_classes(cls):
        class Foo(_base.BasicEntity):
            pass

    @classmethod
    @testing.resolve_artifact_names
    def setup_mappers(cls):
        meta = MetaData()
        test_table.tometadata(meta)

        assert meta.tables['test_table'].bind is None
        mapper(Foo, meta.tables['test_table'])

    @testing.resolve_artifact_names
    def test_session_bind(self):
        engine = self.metadata.bind

        for bind in (engine, engine.connect()):
            try:
                sess = create_session(bind=bind)
                assert sess.bind is bind
                f = Foo()
                sess.add(f)
                sess.flush()
                assert sess.query(Foo).get(f.id) is f
            finally:
                if hasattr(bind, 'close'):
                    bind.close()

    @testing.resolve_artifact_names
    def test_session_unbound(self):
        sess = create_session()
        sess.add(Foo())
        assert_raises_message(
            sa.exc.UnboundExecutionError,
            ('Could not locate a bind configured on Mapper|Foo|test_table '
             'or this Session'),
            sess.flush)


www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.