pytest-redis

Redis fixtures and fixture factories for Pytest.

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Project description

pytest-redis

What is this?

This is a pytest plugin, that enables you to test your code that relies on a running Redis database. It allows you to specify additional fixtures for Redis process and client.

How to use

Plugin contains three fixtures

redisdb - This is a redis client fixture. It constructs a redis client and cleans redis database after the test.

It relies on redis_proc fixture, and as such the redis process is started at the very beginning of the first test using this fixture, and stopped after the last test finishes.
redis_proc - session scoped fixture, that starts Redis instance at it’s first use and stops at the end of the tests.
redis_nooproc - a nooprocess fixture, that’s connecting to already running redis

Simply include one of these fixtures into your tests fixture list.

#
def test_redis(redisdb):
    """Check that it's actually working on redis database."""
    redisdb.set('test1', 'test')
    redisdb.set('test2', 'test')

    my_functionality = MyRedisBasedComponent()
    my_functionality.do_something()
    assert my_functionality.did_something

    assert redisdb.get("did_it") == 1

For the example above works like following:

pytest runs tests
redis_proc starts redis database server
redisdb creates client connection to the server
test itself runs and finishes
redisdb cleans up the redis
redis_proc stops server (if that was the last test using it)
pytest ends running tests

You can also create additional redis client and process fixtures if you’d need to:

from pytest_redis import factories

redis_my_proc = factories.redis_proc(port=None)
redis_my = factories.redisdb('redis_my_proc')

def test_my_redis(redis_my):
    """Check that it's actually working on redis database."""
    redis_my.set('test1', 'test')
    redis_my.set('test2', 'test')

    my_functionality = MyRedisBasedComponent()
    my_functionality.do_something()
    assert my_functionality.did_something

    assert redis_my.get("did_it") == 1

Connecting to already existing redis database

Some projects are using already running redis servers (ie on docker instances). In order to connect to them, one would be using the redis_nooproc fixture.

redis_external = factories.redisdb('redis_nooproc')

def test_redis(redis_external):
    """Check that it's actually working on redis database."""
    redis_external.set('test1', 'test')
    redis_external.set('test2', 'test')

    my_functionality = MyRedisBasedComponent()
    my_functionality.do_something()
    assert my_functionality.did_something

    assert redis_external.get("did_it") == 1

By default the redis_nooproc fixture would connect to Redis instance using 6379 port. Standard configuration options apply to it.

These are the configuration options that are working on all levels with the redis_nooproc fixture:

Configuration

You can define your settings in three ways, it’s fixture factory argument, command line option and pytest.ini configuration option. You can pick which you prefer, but remember that these settings are handled in the following order:

Fixture factory argument

Command line option

Configuration option in your pytest.ini file

Configuration options
Redis server option	Fixture factory argument	Command line option	pytest.ini option	Noop process fixture	Default
executable	executable	–redis-exec	redis_exec		/usr/bin/redis-server
host	host	–redis-host	redis_host	host	127.0.0.1
port	port	–redis-port	redis_port	port	random
connection timeout	timeout	–redis-timeout	redis_timeout		30
number of databases	db_count	–redis-db-count	redis_db_count		8
Whether to enable logging to the system logger	syslog	–redis-syslog	redis_syslog		False
Redis log verbosity level	loglevel	–redis-loglevel	redis_loglevel		notice
Compress dump files	compress	–redis-compress	redis_compress		True
Add checksum to RDB files	checksum	–redis-rdbcompress	redis_rdbchecksum		False
Save configuration	save	–redis-save	redis_save		“”

Example usage:

pass it as an argument in your own fixture

redis_proc = factories.redis_proc(port=8888)

use --redis-port command line option when you run your tests
```
py.test tests --redis-port=8888
```
specify your port as redis_port in your pytest.ini file.
To do so, put a line like the following under the [pytest] section of your pytest.ini:
```
[pytest]
redis_port = 8888
```

Options below are for configuring redis client fixture.

Redis client option	Fixture factory argument	Command line option	pytest.ini option	Default
decode_response	decode	–redis-decode	redis_decode	False

Package resources

Bug tracker: https://github.com/ClearcodeHQ/pytest-redis/issues

CHANGELOG

2.1.0

Features

Rely on tmpdir_factory for handling tmpdirs. Now it’s cleanup should be handled better without much of the leftovers dangling indefinitely in the tmp directory.
Store pidfile in fixture’s temporary directory
Support only python 3.7 and up

Backward incompatibilities

Dropped –redis-logsdir command line option, redis_logsdir ini file configuration option and logsdir fixture factory configuration option. Logs will be automatically placed in fixture’s temporary directory.
Dropped logs_prefix argument from fixture factory argument

2.0.0

[feature] ability to properly connect to already existing postgresql server using redis_nooproc fixture.
[enhancement] dropped support for python 2.7

1.3.2

[bugfix] - close file descriptor when reading redis version (by brunsgaard)

1.3.1

[bugfix] do not run redis explicitly with shell=True

1.3.0

[enhancement] RedisExecutor now provides attribute with path to unixsocket
[enhancement] redis client fixture now connects to redis through unixsocket by default
[enhancement] Version check got moved to executor, to be run just before starting Redis Server
[feature] ability to configure decode_responses for redis client in command line, pytest.ini or factory argument.
[bugfix] set decode_responses to False, same as StrictRedis default
[enhancement] ability to change decode_responses value

1.2.1

[bugfix] raise specific error in case the redis executable path has been misconfigured or does not exists

1.2.0

[feature] ability to configure syslog-enabled for redis in command line, pytest.ini or factory argument.
[feature] ability to configure rdbchecksum for redis in command line, pytest.ini or factory argument.
[feature] ability to configure rdbcompression for redis in command line, pytest.ini or factory argument.
[ehnacement] - RedisExecutor handling parameters and their translation to redis values if needed.
[feature] ability to configure save option for redis in command line, pytest.ini or factory argument.

1.1.1

[cleanup] removed path.py dependency

1.1.0

[feature] - migrate usage of getfuncargvalue to getfixturevalue. require at least pytest 3.0.0

1.0.0

[enhancements] removed the possibility to pass the custom config. No need to include one in package now.
[enhancements] command line, pytest.ini and fixture factory options for setting custom number of databases in redis
[enhancements] command line, pytest.ini and fixture factory options for redis log verbosity
[enhancements] command line, pytest.ini and fixture factory options for modifying connection timeout
[enhancements] command line and pytest.ini options for modifying executable
[enhancements] command line and pytest.ini options for modifying host
[enhancements] command line and pytest.ini options for modifying port
[enhancements] command line and pytest.ini options for modifying logs directory destination

Project details

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Project links

Homepage

Release history Release notifications | RSS feed

3.1.2

Jun 19, 2024

3.1.1

Jun 10, 2024

3.1.0

Jun 5, 2024

3.0.2

Apr 19, 2023

3.0.1

Mar 27, 2023

3.0.0

Mar 24, 2023

2.4.0

Feb 10, 2022

2.3.0

Dec 7, 2021

2.2.0

Nov 3, 2021

2.1.1

May 25, 2021

This version

2.1.0

May 18, 2021

2.0.0

Oct 15, 2019

1.3.2

May 28, 2017

1.3.1

Apr 19, 2017

1.3.0

Apr 10, 2017

1.2.1

Apr 4, 2017

1.2.0

Mar 10, 2017

1.1.1

Jan 23, 2017

1.1.0

Dec 7, 2016

1.0.0

Dec 6, 2016

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