Use central pynx mechanism for tests (#18)

* Use central pynx mechanism for tests

* Update example file

* Add example regeneration script

* Update file to newest definitions

* Track nxs files with lfs

* Readd example file

* Enable lfs in workflow

.gitattributes

@@ -0,0 +1 @@
+*.nxs filter=lfs diff=lfs merge=lfs -text

.github/workflows/pytest.yml

@@ -22,6 +22,7 @@ jobs:
         with:
           fetch-depth: 0
           submodules: recursive
+          lfs: true
       - name: Set up Python ${{ matrix.python_version }}
         uses: actions/setup-python@v4
         with:

scripts/regenerate_examples.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+READER=mpes
+NXDL=NXmpes
+
+function update_mpes_example {
+  echo "Update mpes example"
+  dataconverter xarray_saved_small_calibration.h5 config_file.json --reader $READER --nxdl $NXDL --output example.nxs
+}
+
+project_dir=$(dirname $(dirname $(realpath $0)))
+cd $project_dir/tests/data
+
+update_mpes_example