Package_version

This test checks if the frozen resolve specified in tests/versions.txt is a subset of mamba list. Mamba installs these packages as specified in base/config.yml during the Setup-and-Build stage of the workflow. The logic of the version checking is in tests/version_check.py

If a package in tests/versions.txt is missing in the output of mamba list or there is a version mismatch, the test fails, causing the workflow to cancel, and the test prints the mismatched/missing packages. Otherwise the test passes and prints the matching packages.

Validating True Positive

Here is an example of a run where the test passes properly.

Validating Proper Negative

Here is an example where the test fails since we removed jupyterlab-myst from base/config.yml causing it to be missing from mamba list even though it’s expected by tests/versions.txt.