add workflow for header test

.github/workflows/testheaders.yml

@@ -0,0 +1,38 @@
+name: header test
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+defaults:
+    run:
+        shell: bash -l {0}
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+      - uses: conda-incubator/setup-miniconda@v2
+        with:
+          activate-environment: test_env
+          python-version: 3.8
+          auto-activate-base: false
+      - name: Install dependencies
+        run: |
+          conda install mpi4py "numpy<2" setuptools
+          pip install pyomo addheader pyyaml pytest
+
+      - name: setup the program
+        run: |
+          pip install -e .
+
+      - name: run headers test
+        timeout-minutes: 10
+        run: |
+          cd mpisppy/tests
+          python test_headers.py

mpisppy/tests/test_headers.py

@@ -0,0 +1,34 @@
+###############################################################################
+# mpi-sppy: MPI-based Stochastic Programming in PYthon
+#
+# Copyright (c) 2024, Lawrence Livermore National Security, LLC, Alliance for
+# Sustainable Energy, LLC, The Regents of the University of California, et al.
+# All rights reserved. Please see the files COPYRIGHT.md and LICENSE.md for
+# full copyright and license information.
+###############################################################################
+
+from pathlib import Path
+
+import pytest
+
+yaml = pytest.importorskip("yaml")
+addheader = pytest.importorskip("addheader")
+
+from addheader.add import FileFinder, detect_files
+import mpisppy
+
+def test_headers():
+    root = Path(mpisppy.__file__).parent.parent
+
+    conf = root / "addheader.yml"
+    with open(conf) as f:
+        conf = yaml.safe_load(f)
+    conf = conf["patterns"]
+
+    has_header, missing_header = detect_files(FileFinder(root, glob_patterns=conf))
+    nonempty_missing_header = []
+    for p in missing_header:
+        if p.stat().st_size == 0:
+            continue
+        nonempty_missing_header.append(p)
+    assert not nonempty_missing_header