Creates basic XNAT instance for API tests
Project description
Xnat4Tests provides a helper functions for testing third party tools that access the XNAT API or container service, primarily a means to launch a basic XNAT repository instance within a single Docker container.
The XNAT container service plugin is installed by default and is configured to use the same Docker host as the XNAT instance.
The ‘home/logs’, ‘home/work’, ‘build’, ‘archive’, ‘prearchive’ directories are mounted in from the host for direct access under xnat4tests.config["xnat_root_dir"], which can be useful for debugging and enables the environment in which containers run in within XNAT’s container service to be mocked.
In addition to the launch_xnat function, which launches the XNAT instance, a connect function is supplied that returns an XnatPy connection object to the test instance
Installation
Xnat4Tests is available on PyPI so to install, simply use pip
$ pip3 install xnat4testsor include in your package’s test_requires.
Usage
# Import xnat4tests functions
from xnat4tests import launch_xnat, stop_xnat, connect, config
# Launch the instance (NB: it takes quite while for an XNAT instance to start). If an existing
# container with the reserved name is already running it is returned instead
launch_xnat()
# Run your tests
with connect() as login:
PROJECT = 'MYPROJECT'
SUBJECT = 'MYSUBJECT'
SESSION = 'MYSESSION'
login.put(f'/data/archive/projects/MY_TEST_PROJECT')
# Create subject
xsubject = login.classes.SubjectData(label=SUBJECT,
parent=login.projects[PROJECT])
# Create session
login.classes.MrSessionData(label=SESSION, parent=xsubject)
assert [p.name for p in (config.XNAT_ROOT_DIR / 'archive').iterdir()] == [PROJECT]
# Remove the container after you are done (not strictly necessary)
stop_xnat()Alternatively, if you are using Pytest then you can set up the connection as a fixture in your conftest.py with
@pytest.fixture(scope='session')
def xnat_login():
xnat4tests.launch_xnat()
yield xnat4tests.connect()
xnat4tests.stop_xnat()Release history Release notifications | RSS feed
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