DevOps: Add tox environment for tests-lab-4

Author: agoscinski

tox.ini

@@ -43,6 +43,38 @@ commands =
     jupytext tests/notebooks/*.py --to ipynb
     pytest {posargs:-v} --driver Firefox
 
+[testenv:tests-lab-4]
+description =
+    Tests with jupyter lab version >= 4
+setenv =
+    # this is needed to run selenium on a machine without display to do CI
+    SELENIUM_FIREFOX_DRIVER_ARGS = {env:SELENIUM_FIREFOX_DRIVER_ARGS:--headless}
+    JUPYTER_TYPE = lab
+    # use the jupyter config in the tox environment
+    # otherwise the users config is used
+    JUPYTER_CONFIG_DIR={envdir}/etc/jupyter
+    JUPYTER_DATA_DIR={envdir}/share/jupyter
+deps =
+    pytest<8.0.0
+    pytest-html<4.0.0,
+    # selenium juypter notebook tests
+    jupyterlab>=4.0.0
+    # fixing selenium version to have backwards-compatibility with pytest-selenium
+    # see https://github.com/robotframework/SeleniumLibrary/issues/1835#issuecomment-1581426365
+    selenium==4.9.0
+    pytest-selenium
+    jupytext==1.15.0
+    imageio
+    # we fix matplotlib for consistent image tests
+    matplotlib==3.7.2
+    numpy<2.0.0
+    scikit-image
+    ipympl
+commands =
+    # converts the python files to ipython notebooks
+    jupytext tests/notebooks/*.py --to ipynb
+    pytest {posargs:-v} --driver Firefox
+
 [testenv:coverage]
 # We do coverage in a separate environment that skips the selenium tests but
 # includes the jupytext notebook files, because coverage is incompatible with