Make GitHub CI execute unit tests in Petals via reusable workflow

.github/workflows/ci.yml

@@ -6,11 +6,11 @@ on: [push]
 # Use bash explicitly for being able to enter the conda environment
 defaults:
   run:
-    shell: bash -l {0}
+    shell: bash -el {0}
 
 jobs:
   build-and-test:
-    name: Build Env, Install, Unit Tests
+    name: 'Core / Unit Tests'
     runs-on: ubuntu-latest
     permissions:
       # For publishing results
@@ -41,8 +41,6 @@ jobs:
           create-args: >-
             python=${{ matrix.python-version }}
             make
-          init-shell: >-
-            bash
           # Persist environment for branch, Python version, single day
           cache-environment-key: env-${{ github.ref }}-${{ matrix.python-version }}-${{ steps.date.outputs.date }}
       -
@@ -59,12 +57,22 @@ jobs:
         if: always()
         with:
           junit_files: tests_xml/tests.xml
-          check_name: "Unit Test Results Python ${{ matrix.python-version }}"
+          check_name: "Core / Unit Test Results (${{ matrix.python-version }})"
           comment_mode: "off"
       -
         name: Upload Coverage Reports
         if: always()
         uses: actions/upload-artifact@v4
         with:
-          name: coverage-report-unittests-py${{ matrix.python-version }}
+          name: coverage-report-core-unittests-py${{ matrix.python-version }}
           path: coverage/
+
+  test-petals:
+    name: Petals Compatibility
+    uses: CLIMADA-project/climada_petals/.github/workflows/testing.yml@github-actions
+    needs: build-and-test
+    with:
+      core_branch: ${{ github.ref }}
+      petals_branch: github-actions  # TODO: Change this to 'develop' once Petals PR is merged!
+    permissions:
+      checks: write

CHANGELOG.md

@@ -12,6 +12,8 @@ Code freeze date: YYYY-MM-DD
 
 ### Added
 
+- GitHub actions workflow for unit tests [#114](https://github.com/CLIMADA-project/climada_petals/pull/114)
+
 ### Changed
 
 ### Fixed

Makefile

@@ -5,8 +5,8 @@
 PYTEST_JUNIT_ARGS = --junitxml=tests_xml/tests.xml
 
 PYTEST_COV_ARGS = \
-	--cov --cov-config=.coveragerc --cov-report html --cov-report xml \
-	--cov-report term:skip-covered
+	--cov --cov-config=.coveragerc --cov-report html:coverage \
+	--cov-report xml:coverage.xml --cov-report term:skip-covered
 
 PYTEST_ARGS = $(PYTEST_JUNIT_ARGS) $(PYTEST_COV_ARGS)