Developer Guide


Besides an appropriate version of Python, Large Image tests are run via tox. This is also a convenient way to setup a development environment.

The tox Python package must be installed:

pip install tox

See the tox documentation for how to recreate test environments or perform other maintenance tasks.

By default, instead of storing test environments in a .tox directory, they are stored in the build/tox directory. This is done for convenience in handling build artifacts from Girder-specific tests.

nodejs and npm for Girder Tests or Development

nodejs version 12.x and a corresponding version of npm are required to build and test Girder client code. See nodejs for how to download and install it. Remember to get version 12 or earlier.

Mongo for Girder Tests or Development

To run the full test suite, including Girder, ensure that a MongoDB instance is ready on localhost:27017. This can be done with docker via docker run -p 27017:27017 -d mongo:latest.

Running Tests

Tests are run via tox environments:

tox -e test-py39,flake8,lintclient,lintannotationclient

Or, without Girder:

tox -e core-py39,flake8

You can build the docs. They are created in the docs/build directory:

tox -e docs

You can run specific tests using pytest’s options, e.g., to try one specific test:

tox -e core-py39 -- -k testFromTiffRGBJPEG

Development Environment

To set up a development environment, you can use tox. Use the core environment instead of the test environment if you aren’t using Girder. This is not required to run tests:

tox --devenv /my/env/path -e test

and then switch to that environment:

. /my/env/path/bin/activate

If you are using Girder, build and start it:

girder build --dev
girder serve