# NiBabel

### Access a cacophony of neuro-imaging file formats

# Advanced Testing

## Setup

Before running advanced tests, please update all submodules of nibabel, by running `git submodule update --init`

## Long-running tests

Long-running tests are not enabled by default, and can be resource-intensive. To run these tests:

- Set environment variable `NIPY_EXTRA_TESTS=slow`;

- Run `pytest nibabel`.

Note that some tests may require a machine with >4GB of RAM.