feat(dfns): improve DFNs API

.github/workflows/ci.yml

@@ -89,13 +89,33 @@ jobs:
         uses: actions/checkout@v4
         with:
           path: modflow-devtools
-
+
+      - name: Checkout modflow6 for DFN autodiscovery
+        uses: actions/checkout@v4
+        with:
+          repository: MODFLOW-ORG/modflow6
+          path: modflow6
+
       - name: Setup uv
         uses: astral-sh/setup-uv@v5
         with:
           cache-dependency-glob: "**/pyproject.toml"
           python-version: ${{ matrix.python }}
 
+      - name: Setup Fortran
+        if: runner.os != 'Windows'
+        uses: fortran-lang/setup-fortran@v1
+        with:
+          compiler: gcc
+          version: ${{ env.GCC_V }}
+
+      - name: Setup Fortran (Windows)
+        if: runner.os == 'Windows'
+        uses: fortran-lang/setup-fortran@v1
+        with:
+          compiler: intel
+          version: 2025.2
+
       - name: Install project
         working-directory: modflow-devtools
         run: uv sync --all-extras
@@ -105,9 +125,10 @@ jobs:
         env:
           REPOS_PATH: ${{ github.workspace }}
           MODFLOW_DEVTOOLS_NO_AUTO_SYNC: 1
+          TEST_DFN_PATH: ${{ github.workspace }}/modflow6/doc/mf6io/mf6ivar/dfn
         # use --dist loadfile to so tests requiring pytest-virtualenv run on the same worker
-        run: uv run pytest -v -n auto --dist loadfile --durations 0 --ignore test_download.py --ignore test_models.py
-      
+        run: uv run pytest -v -n auto --dist loadfile --durations 0 --ignore test_download.py --ignore test_models.py --ignore test_dfns_registry.py
+
       - name: Run network-dependent tests
         # only invoke the GH API on one OS and Python version
         # to avoid rate limits (1000 rqs / hour / repository)
@@ -117,12 +138,20 @@ jobs:
         env:
           REPOS_PATH: ${{ github.workspace }}
           GITHUB_TOKEN: ${{ github.token }}
-          TEST_REPO: MODFLOW-ORG/modflow6-testmodels
-          TEST_REF: develop
-          TEST_SOURCE: modflow6-testmodels
-          TEST_SOURCE_NAME: mf6/test
-          MODFLOW_DEVTOOLS_NO_AUTO_SYNC: 1
-        run: uv run pytest -v -n auto --dist loadgroup --durations 0 test_download.py test_models.py
+          # TODO: switch to upstream when dfn registry file added
+          TEST_DFNS_REPO: wpbonelli/modflow6
+          TEST_DFNS_REF: registry
+          TEST_DFNS_SOURCE: modflow6
+          # Models API
+          TEST_MODELS_REPO: MODFLOW-ORG/modflow6-testmodels
+          TEST_MODELS_REF: develop
+          TEST_MODELS_SOURCE: modflow6-testmodels
+          TEST_MODELS_SOURCE_NAME: mf6/test
+          # Programs API
+          TEST_PROGRAMS_REPO: MODFLOW-ORG/modflow6
+          TEST_PROGRAMS_REF: develop
+          TEST_PROGRAMS_SOURCE: modflow6
+        run: uv run pytest -v -n auto --dist loadgroup --durations 0 test_download.py test_models.py test_dfns_registry.py
 
   rtd:
     name: Docs

autotest/test_build.py

@@ -28,5 +28,6 @@ def test_meson_build(tmp_path):
 
     assert (bin_path / f"mf6{_exe_ext}").is_file()
     assert (bin_path / f"zbud6{_exe_ext}").is_file()
-    assert (bin_path / f"mf5to6{_exe_ext}").is_file()
+    # mf5to6 is no longer built by default in modflow6 meson.build
+    # assert (bin_path / f"mf5to6{_exe_ext}").is_file()
     assert (bin_path / f"libmf6{_lib_ext}").is_file()