add codecov

.github/workflows/ci_tests.yml

@@ -62,10 +62,9 @@ jobs:
           CURRENT_DATE=$(date +'%Y-%m-%dT%H_%M_%S') # no colons allowed for artifacts
           echo "date=$CURRENT_DATE" >> $GITHUB_OUTPUT
 
-      # TODO: what setup is needed here?
-      # - name: Upload Unit Test Coverage to Codecov
-      #   if: ${{ matrix.python-version == '3.11' }}
-      #   uses: codecov/codecov-action@v3
-      #   with:
-      #     token: ${{ secrets.CODECOV_TOKEN }}
-      #     flags: unit
+      - name: Upload Unit Test Coverage to Codecov
+        if: ${{ matrix.python-version == '3.11' }}
+        uses: codecov/codecov-action@v3
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          flags: unit

codecov.yml

@@ -0,0 +1,13 @@
+ignore:
+  - ".github"
+  - ".changes"
+coverage:
+  status:
+    project:
+      default:
+        target: auto
+        threshold: 0.1% # Reduce noise by ignoring rounding errors in coverage drops
+    patch:
+      default:
+        target: auto
+        threshold: 80%