ms3

ms3 is a mock server intended to replace the dependency on AWS S3 when testing a project.

Current features are:

• create/delete/list buckets
• enable/disable versioning in buckets
• get/put objects (with versions)

For more up to date features, please look at tests/test_s3_operations.py.

1. Setting up

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In order to get a virtualenv with all dependencies installed just run ./setup-development.sh

Setting up the connection (assuming a global level function that provides an S3 connection):

from boto.s3.connection import S3Connection, OrdinaryCallingFormat
from tornado.options import options

def current_s3_connection():
    """ Return an AWS S3 connection """
    if getattr(current_s3_connection, '_connection', None) is None:
        if options.use_ms3:
            _connection = S3Connection('X', 'Y',
                is_secure=options.ms3_https,
                port=options.ms3_port, host=options.ms3_host,
                calling_format=OrdinaryCallingFormat())
        else:
            _connection = S3Connection(options.aws_access_key,
                                       options.aws_secret_key)
        current_s3_connection._connection = _connection
    return current_s3_connection._connection

Starting with a test case:

from ms3.testing import MS3Server

class ExampleTestCase(TestCase):

    def setUp(self):
        self.datadir = helpers.tests_dir("s3")
        MS3Server.start(self.datadir, port=9011, with_exec=True)

    def tearDown(self):
        MS3Server.stop()

    def test_example():
        s3_conn = current_s3_connection()
        buckets = s3_conn.get_all_buckets()
        ...

2. Running

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In order to get a ms3 server up and running (for development purposes), run python -m ms3.app.

For running the test: python tests/test_s3_operations.py

You can find out more details regarding the configuration options by typing: python -m ms3.app --help

ms3 is released under MIT licence (see LICENSE file).