Skip to main content

dbus signature hypothesis strategy generator

Project description

This package contains a Hypothesis strategy for generating DBus signatures. An informal specification of DBus signatures is available at: https://dbus.freedesktop.org/doc/dbus-specification.html.

The strategy is intended to be both sound and complete. That is, it should never generate an invalid DBus signature and it should be capable, modulo size constraints, of generating any valid DBus signature.

Usage

Import the function and obtain a strategy with the default parameters.

>>> from hs_dbus_signature import dbus_signatures
>>> strategy = dbus_signatures()

Obtain a few examples of valid signatures, e.g.,

>>> strategy.example()
''
>>> strategy.example()
'a{ng}'
>>> strategy.example()
'a{xas}a{gah}a{nau}'

Make use of the strategy in your tests, e.g.

from hypothesis import given

@given(dbus_signatures())
def test(signature):
    ...

Use the parameters to omit dicts

>>> strategy = dbus_signatures(exclude_dicts=True)
>>> strategy.example()
'(gnggg)(n)(gn)(nnnnn)(nn)'

or to ensure that no example signature is the empty string

>>> strategy = dbus_signatures(min_complete_types=1)
>>> strategy.example()
'a{sv}'

The strategy will raise an InvalidArgument exception immediately if it is given arguments which allow no examples to be drawn.

>>> strategy = dbus_signatures(blacklist=string.ascii_lowercase)
Traceback (most recent call last):
...

Remarks

Documentation for the Hypothesis testing library can be found at http://hypothesis.readthedocs.io.

This strategy makes use of the Hypothesis higher-order strategy, recursive(), which is discussed here: http://hypothesis.works/articles/recursive-data/.

It is only supported for Python 3 as it uses Python 3 only syntax.

Project details


Release history Release notifications

This version
History Node

0.5

History Node

0.4

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Filename, size & hash SHA256 hash help File type Python version Upload date
hs-dbus-signature-0.5.tar.gz (6.2 kB) Copy SHA256 hash SHA256 Source None Jan 13, 2017

Supported by

Elastic Elastic Search Pingdom Pingdom Monitoring Google Google BigQuery Sentry Sentry Error logging CloudAMQP CloudAMQP RabbitMQ AWS AWS Cloud computing Fastly Fastly CDN DigiCert DigiCert EV certificate StatusPage StatusPage Status page