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Name: testing.postgresql
Version: 1.3.0
Summary: automatically setups a postgresql instance in a temporary directory, and destroys it after testing
Home-page: https://github.com/tk0miya/testing.postgresql
Author: Takeshi Komiya
Author-email: i.tkomiya at gmail.com
License: Apache License 2.0
Description: About
=====
``testing.postgresql`` automatically setups a postgresql instance in a temporary directory, and destroys it after testing.
.. image:: https://travis-ci.org/tk0miya/testing.postgresql.svg?branch=master
:target: https://travis-ci.org/tk0miya/testing.postgresql
.. image:: https://coveralls.io/repos/tk0miya/testing.postgresql/badge.png?branch=master
:target: https://coveralls.io/r/tk0miya/testing.postgresql?branch=master
.. image:: https://codeclimate.com/github/tk0miya/testing.postgresql/badges/gpa.svg
:target: https://codeclimate.com/github/tk0miya/testing.postgresql
Documentation
https://github.com/tk0miya/testing.postgresql
Issues
https://github.com/tk0miya/testing.postgresql/issues
Download
https://pypi.python.org/pypi/testing.postgresql
Install
=======
Use pip::
$ pip install testing.postgresql
And ``testing.postgresql`` requires PostgreSQL server in your PATH.
Usage
=====
Create PostgreSQL instance using ``testing.postgresql.Postgresql``::
import testing.postgresql
from sqlalchemy import create_engine
# Lanuch new PostgreSQL server
with testing.postgresql.Postgresql() as postgresql:
# connect to PostgreSQL
engine = create_engine(postgresql.url())
# if you use postgresql or other drivers:
# import psycopg2
# db = psycopg2.connect(**postgresql.dsn())
#
# do any tests using PostgreSQL...
#
# PostgreSQL server is terminated here
``testing.postgresql.Postgresql`` executes ``initdb`` and ``postgres`` on instantiation.
On deleting Postgresql object, it terminates PostgreSQL instance and removes temporary directory.
If you want a database including tables and any fixtures for your apps,
use ``copy_data_from`` keyword::
# uses a copy of specified data directory of PostgreSQL.
postgresql = testing.postgresql.Postgresql(copy_data_from='/path/to/your/database')
For example, you can setup new PostgreSQL server for each testcases on setUp() method::
import unittest
import testing.postgresql
class MyTestCase(unittest.TestCase):
def setUp(self):
self.postgresql = testing.postgresql.Postgresql()
def tearDown(self):
self.postgresql.stop()
To make your tests faster
-------------------------
``testing.postgresql.Postgresql`` invokes ``initdb`` command on every instantiation.
That is very simple. But, in many cases, it is very waste that generating brandnew database for each testcase.
To optimize the behavior, use ``testing.postgresql.PostgresqlFactory``.
The factory class is able to cache the generated database beyond the testcases,
and it reduces the number of invocation of ``initdb`` command::
import unittest
import testing.postgresql
# Generate Postgresql class which shares the generated database
Postgresql = testing.postgresql.PostgresqlFactory(cache_initialized_db=True)
def tearDownModule(self):
# clear cached database at end of tests
Postgresql.clear_cache()
class MyTestCase(unittest.TestCase):
def setUp(self):
# Use the generated Postgresql class instead of testing.postgresql.Postgresql
self.postgresql = Postgresql()
def tearDown(self):
self.postgresql.stop()
If you want to insert fixtures to the cached database, use ``initdb_handler`` option::
# create initial data on create as fixtures into the database
def handler(postgresql):
conn = psycopg2.connect(**postgresql.dsn())
cursor = conn.cursor()
cursor.execute("CREATE TABLE hello(id int, value varchar(256))")
cursor.execute("INSERT INTO hello values(1, 'hello'), (2, 'ciao')")
cursor.close()
conn.commit()
conn.close()
# Use `handler()` on initialize database
Postgresql = testing.postgresql.PostgresqlFactory(cache_initialized_db=True,
on_initialized=handler)
Requirements
============
* Python 2.6, 2.7, 3.2, 3.3, 3.4, 3.5
* pg8000 1.10
License
=======
Apache License 2.0
History
=======
1.3.0 (2016-02-03)
-------------------
* Add testing.postgresql.PostgresqlFactory
* Depend on ``testing.common.database`` package
1.2.1 (2015-08-22)
-------------------
* Fix bug:
- Close #3 Fix AttributeError on end of tests
1.2.0 (2015-05-17)
-------------------
* Use `pg8000` for connector to create test database
* Connect to `postgres` to create test database (instead of `template1`)
1.1.2 (2015-04-06)
-------------------
* Fix bugs:
- Do not call os.getpid() on destructor (if not needed)
- Raise detailed RuntimeError if initdb exits non-zero
1.1.1 (2015-01-18)
-------------------
* Disable logging_collector feature (For Fedora)
* Fix bugs:
- MacPorts default path is /opt/local/lib/postgresql*, no dash
1.1.0 (2014-12-20)
-------------------
* Invoke 'postgres' command instead of 'postmaster'
1.0.6 (2014-07-19)
-------------------
* Fix #1 Dirty postmaster shut down
1.0.5 (2014-07-19)
-------------------
* Fix path for PostgreSQL
* Use absolute path for which command
1.0.4 (2014-06-19)
-------------------
* Fix timeout on terminating postgresql
* Support PostgreSQL on /usr/local/bin (cf. FreeBSD ports)
* Fix bugs
1.0.3 (2014-06-11)
-------------------
* Fix ImportError if caught SIGINT on py3
1.0.2 (2013-12-06)
-------------------
* Change behavior: Postgresql#stop() cleans workdir
* Fix caught AttributeError on object deletion
1.0.1 (2013-12-05)
-------------------
* Add @skipIfNotInstalled decorator (alias of skipIfNotFound)
* Suport python 2.6 and 3.2
1.0.0 (2013-12-04)
-------------------
* Add @skipIfNotFound decorator
0.1.0 (2013-11-26)
-------------------
* First release
Platform: UNKNOWN
Classifier: Development Status :: 4 - Beta
Classifier: Intended Audience :: Developers
Classifier: License :: OSI Approved :: Apache Software License
Classifier: Programming Language :: Python
Classifier: Programming Language :: Python :: 2.6
Classifier: Programming Language :: Python :: 2.7
Classifier: Programming Language :: Python :: 3.2
Classifier: Programming Language :: Python :: 3.3
Classifier: Programming Language :: Python :: 3.4
Classifier: Programming Language :: Python :: 3.5
Classifier: Topic :: Database
Classifier: Topic :: Software Development
Classifier: Topic :: Software Development :: Testing
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