Add Code Coverage to the project

Signed-off-by: Rahul Jain <[email protected]>

.github/workflows/go.yml

@@ -48,6 +48,14 @@ jobs:
           mkdir -p $(go env GOCACHE)
           sudo make unit-test
 
+      - name: Codecov
+        uses: codecov/codecov-action@v3
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          file: coverage-unit.txt
+          flags: unit-tests
+          name: codecov-unit-test
+
   golangci-lint:
     needs: check-changes
     if: ${{ needs.check-changes.outputs.has_changes == 'yes' }}

Makefile

@@ -42,7 +42,8 @@ mock: docker-builder
 
 # Run unit-tests
 unit-test: mock
-	$(DOCKERIZE) go test -v -cover -count 1 $$(go list antrea.io/nephe/pkg/...) --ginkgo.v
+	$(DOCKERIZE) go test -coverprofile=coverage-unit.txt \
+		-covermode=atomic -count 1 $$(go list antrea.io/nephe/pkg/...)
 
 # Run lint against code
 golangci-lint: docker-builder

codecov.yaml

@@ -0,0 +1,36 @@
+codecov:
+  branch: main
+  require_ci_to_pass: no
+
+comment:
+  layout: "reach,diff,flags,tree"
+  behavior: default
+  require_changes: no
+  require_base: no
+  require_head: no
+  after_n_builds: 1
+  show_carryforward_flags: true
+
+github_checks:
+  annotations: true
+
+coverage:
+  status:
+    patch:
+      default:
+        target: 70%
+        threshold: 5%
+        base: auto
+        only_pulls: true
+        flags:
+          - unit-tests
+    project:
+      default:
+        target: auto
+        threshold: 1%
+        flags:
+          - unit-tests
+
+flag_management:
+  default_rules:
+    carryforward: true