diff --git a/.github/workflows/fbf-test.yaml b/.github/workflows/fbf-test.yaml
index 81576f56..4d34abbe 100644
--- a/.github/workflows/fbf-test.yaml
+++ b/.github/workflows/fbf-test.yaml
@@ -15,7 +15,7 @@ jobs:
       run:
         shell: bash -elo pipefail {0}
     steps:
-      - run: ls -l /usr/share
+      - run: ls -l /usr/share/miniconda
       - uses: actions/checkout@v3
 
       - name: restore miniconda cache
@@ -28,7 +28,7 @@ jobs:
       # I tried and rejected the existing setup-miniconda action,
       # because it wipes out a bunch of files like ~/.profile,
       # ~/.bashrc, ~/.bash_profile in a way that (a) won't interact
-      # well with other actions that need to modify the shell
+      # well with other actions that also need to modify the shell
       # environment, and (b) doesn't play well with caching (you can't
       # cache the deletion of a file). Also this way seems to take
       # about half the time (though that might just be random
@@ -63,10 +63,6 @@ jobs:
         run: source ${{env.CONDA_PATH}}/etc/profile.d/conda.sh && mamba create -n fbfmaproom --file fbfmaproom/conda-linux-64.lock
         if: steps.restore-fbfmaproom-env.outputs.cache-hit != 'true'
 
-      - name: clean up fbfmaproom environment to reduce cache size
-        run: source ${{env.CONDA_PATH}}/etc/profile.d/conda.sh && conda clean -afy
-        if: steps.restore-fbfmaproom-env.outputs.cache-hit != 'true'
-
       - name: save fbfmaproom conda environment cache
         uses: actions/cache/save@v3
         with:
@@ -75,4 +71,4 @@ jobs:
         if: steps.restore-fbfmaproom-env.outputs.cache-hit != 'true'
 
       - name: run fbf tests
-        run: source ${{env.CONDA_PATH}}/etc/profile.d/conda.sh && conda activate fbfmaproom && cd fbfmaproom && CONFIG=fbfmaproom-sample.yaml python -m pytest tests/test_pingrid.py
+        run: source ${{env.CONDA_PATH}}/etc/profile.d/conda.sh && conda activate fbfmaproom && cd fbfmaproom && CONFIG=fbfmaproom-sample.yaml python -m pytest