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S3 compatibility tests

This is a set of completely unofficial Amazon AWS S3 compatibility tests, that will hopefully be useful to people implementing software that exposes an S3-like API.

The tests only cover the REST interface.

The tests use the Boto library, so any e.g. HTTP-level differences that Boto papers over, the tests will not be able to discover. Raw HTTP tests may be added later.

The tests use the Nose test framework. To get started, ensure you have the virtualenv software installed; e.g. on Debian/Ubuntu:

sudo apt-get install python-virtualenv

and then run:


You will need to create a configuration file with the location of the service and two different credentials, something like this:

## this section is just used as default for all the "s3 *"
## sections, you can place these variables also directly there

## replace with e.g. "localhost" to run against local software
host =

## uncomment the port to use something other than 80
# port = 8080

## say "no" to disable TLS
is_secure = yes

## all the buckets created will start with this prefix;
## {random} will be filled with random characters to pad
## the prefix to 30 characters long, and avoid collisions
bucket prefix = YOURNAMEHERE-{random}-

[s3 main]
## the tests assume two accounts are defined, "main" and "alt".

## user_id is a 64-character hexstring
user_id = 0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef

## display name typically looks more like a unix login, "jdoe" etc
display_name = youruseridhere

## replace these with your access keys
secret_key = abcdefghijklmnopqrstuvwxyzabcdefghijklmn

## replace with key id obtained when secret is created, or delete if KMS not tested
kms_keyid = 01234567-89ab-cdef-0123-456789abcdef

[s3 alt]
## another user account, used for ACL-related tests
user_id = 56789abcdef0123456789abcdef0123456789abcdef0123456789abcdef01234
display_name = john.doe
## the "alt" user needs to have email set, too
email =
secret_key = nopqrstuvwxyzabcdefghijklmnabcdefghijklm

Once you have that, you can run the tests with:

S3TEST_CONF=your.conf ./virtualenv/bin/nosetests

To gather a list of tests being run, use the flags:

-v --collect-only

You can specify what test(s) to run:

S3TEST_CONF=your.conf ./virtualenv/bin/nosetests s3tests.functional.test_s3:test_bucket_list_empty

Some tests have attributes set based on their current reliability and things like AWS not enforcing their spec stricly. You can filter tests based on their attributes:

S3TEST_CONF=aws.conf ./virtualenv/bin/nosetests -a '!fails_on_aws'