fix(prp): fix incorrectly raised error introduced in 12dea73 (#1921)

#1907 erroneously converted a cycle condition to an error — this was left over from a more involved refactor which that PR was extracted from, and should not have been included yet. This has caused one of the PRT example models to fail, which has not shown up on this repository's CI because PRT notebook tests were getting skipped due to missing dependencies. This is behind the currently failing FloPy MF6 CI.

This PR drops test_prt_notebooks.py in favor of just running the mf6 examples repo's own tests in CI. This is done only on Linux to avoid slowing things down too much, it should not add to total runtime if the runner pool is unsaturated because the modified jobs are still faster than the parallel test jobs.

A few dependencies needed by the examples are added to the pixi and conda environments:

* pooch
* rasterio
* rasterstats

A subsequent PR will include more extensive cleanup of the release mechanism.

.github/workflows/ci.yml

@@ -290,6 +290,19 @@ jobs:
 
           pixi run autotest -m "$markers" -k "$filters"
       
+      - name: Install executables
+        if: runner.os == 'Linux'
+        uses: modflowpy/install-modflow-action@v1
+
+      - name: Test mf6 examples
+        if: runner.os == 'Linux'
+        working-directory: modflow6
+        shell: pixi run bash -e {0}
+        run: |
+          cp bin/mf6 $(which mf6)
+          cd ../modflow6-examples/autotest
+          pytest -v -n auto test_scripts.py
+
       - name: Upload failed test output
         if: failure()
         uses: actions/upload-artifact@v4
@@ -416,6 +429,19 @@ jobs:
           else
             pixi run autotest -m "not large"
           fi
+
+      - name: Install executables
+        if: runner.os == 'Linux'
+        uses: modflowpy/install-modflow-action@v1
+
+      - name: Test mf6 examples
+        if: runner.os == 'Linux'
+        working-directory: modflow6
+        shell: pixi run bash -e {0}
+        run: |
+          cp bin/mf6 $(which mf6)
+          cd ../modflow6-examples/autotest
+          pytest -v -n auto test_scripts.py
       
       - name: Upload failed test output
         if: failure()

autotest/pytest.ini

@@ -1,5 +1,5 @@
 [pytest]
-addopts = --color=yes --benchmark-disable
+addopts = --color=yes --benchmark-disable -ra
 python_files =
     test_*.py
     *_test*.py

environment.yml

@@ -24,13 +24,16 @@ dependencies:
       - git+https://github.com/Deltares/xmipy.git
       - git+https://github.com/MODFLOW-USGS/modflowapi.git
       - git+https://github.com/MODFLOW-USGS/modflow-devtools.git
+  - pooch
   - pyshp
   - pytest!=8.1.0
   - pytest-benchmark
   - pytest-dotenv
   - pytest-order
   - pytest-xdist
   - python
+  - rasterio
+  - rasterstats
   - scipy
   - shapely
   - syrupy