Add running the unittests to the GitHub workflow

.github/workflows/cmew-env/cmew-env.yml

@@ -1,4 +1,4 @@
-# (C) Crown Copyright 2024-2025, Met Office.
+# (C) Crown Copyright 2024-2026, Met Office.
 # The LICENSE.md file contains full licensing details.
 name: cmew
 
@@ -8,7 +8,9 @@ channels:
 dependencies:
   - cylc-flow
   - cylc-rose
+  - esmvalcore
   - metomi-rose
+  - pre-commit
+  - pytest
   - sphinx
   - sphinx_rtd_theme
-  - pre-commit

.github/workflows/default.yml

@@ -1,4 +1,4 @@
-# (C) Crown Copyright 2022-2025, Met Office.
+# (C) Crown Copyright 2022-2026, Met Office.
 # The LICENSE.md file contains full licensing details.
 # This workflow creates the required Conda environment, performs various
 # validation steps for Cylc and Rose, and builds and checks the documentation.
@@ -67,6 +67,12 @@ jobs:
           cd CMEW
           rose metadata-check -C meta/
 
+      - name: Run Python unit tests
+        run: |
+          eval "$(conda shell.bash hook)"
+          conda activate cmew
+          pytest -v
+
       - name: Build documentation
         run: |
           eval "$(conda shell.bash hook)"

.pytest.ini

@@ -0,0 +1,11 @@
+# (C) Crown Copyright 2026, Met Office.
+# The LICENSE.md file contains full licensing details.
+[pytest]
+testpaths = CMEW
+filterwarnings =
+    # Ignore deprecation warnings from webob, esmpy and pkg_resources:
+    ignore:'cgi' is deprecated and slated for removal in Python 3.13:DeprecationWarning
+    ignore:Implicit None on return values is deprecated:DeprecationWarning
+    ignore:Deprecated call to `pkg_resources.declare_namespace:DeprecationWarning
+    # Ignore user warnings from pybtex:
+    ignore:pkg_resources is deprecated as an API:UserWarning

CMEW/app/unittest/rose-app.conf

@@ -1,6 +1,9 @@
-# (C) Crown Copyright 2024-2025, Met Office.
+# (C) Crown Copyright 2024-2026, Met Office.
 # The LICENSE.md file contains full licensing details.
 
 [command]
 default=cd ${CYLC_WORKFLOW_RUN_DIR}/app
-       = cmew-esmvaltool-env pytest
+       =cmew-esmvaltool-env pytest
+
+[file:$CYLC_WORKFLOW_RUN_DIR/.pytest.ini]
+source=git:https://github.com/MetOffice/CMEW.git::pytest.ini::165_add_unittest_in_github_workflow

CMEW/site/metoffice.cylc

@@ -1,5 +1,5 @@
 #!jinja2
-# (C) Crown Copyright 2022-2025, Met Office.
+# (C) Crown Copyright 2022-2026, Met Office.
 # The LICENSE.md file contains full licensing details.
 # metoffice.cylc
 [runtime]
@@ -14,6 +14,6 @@
             --ntasks = {{ MAX_PARALLEL_TASKS }}
 
     [[run_recipe<recipe=radiation_budget>]]
+        execution time limit = PT2H
         [[[directives]]]
-            --time = 2
             --mem = 3G

pyproject.toml

@@ -1,4 +1,4 @@
-# (C) Crown Copyright 2024-2025, Met Office.
+# (C) Crown Copyright 2024-2026, Met Office.
 # The LICENSE.md file contains full licensing details.
 # Configure black.
 [tool.black]
@@ -15,14 +15,3 @@ exclude = '''
   )/
 )
 '''
-
-# Configure pytest.
-[tool.pytest.ini_options]
-filterwarnings = [
-    # Ignore deprecation warnings from webob, esmpy and pkg_resources:
-    "ignore:'cgi' is deprecated and slated for removal in Python 3.13:DeprecationWarning",
-    "ignore:Implicit None on return values is deprecated:DeprecationWarning",
-    "ignore:Deprecated call to `pkg_resources.declare_namespace:DeprecationWarning",
-    # Ignore user warnings from pybtex:
-    "ignore:pkg_resources is deprecated as an API:UserWarning",
-]