Add test coverage to test-unit Makefile target

Signed-off-by: carlory <baofa.fan@daocloud.io>

Author: carlory

.github/workflows/ci-pr-checks.yaml

@@ -47,7 +47,34 @@ jobs:
         run: |
           make test sidecar-test
 
+      - name: Archive code coverage results
+        uses: actions/upload-artifact@v4
+        with:
+          name: code-coverage
+          path: coverage.out # Make sure to use the same file name you chose for the "-coverprofile" in the "make test" step
+
+      - name: Archive code coverage results
+        uses: actions/upload-artifact@v4
+        with:
+          name: code-coverage
+          path: coverage.out # Make sure to use the same file name you chose for the "-coverprofile" in the "make test" step
+
       - name: Run make build
         shell: bash
         run: |
           make build sidecar-build
+
+  code_coverage:
+    name: "Code coverage report"
+    if: github.event_name == 'pull_request'
+    runs-on: ubuntu-latest
+    needs: lint-and-test # Depends on the artifact uploaded by the "lint-and-test" job
+    permissions:
+      contents:      read
+      actions:       read  # to download code coverage results from "lint-and-test" job
+      pull-requests: write # write permission needed to comment on PR
+    steps:
+      - uses: fgrosse/go-coverage-report@v1.2.0
+        with:
+          coverage-artifact-name: "code-coverage"
+          coverage-file-name: "coverage.out"

Makefile

@@ -91,7 +91,7 @@ test: test-unit test-e2e ## Run unit tests and e2e tests
 .PHONY: test-unit
 test-unit: download-tokenizer install-dependencies ## Run unit tests
 	@printf "\033[33;1m==== Running Unit Tests ====\033[0m\n"
-	go test -ldflags="$(LDFLAGS)" -v $$(echo $$(go list ./... | grep -v /test/))
+	go test -ldflags="$(LDFLAGS)" -cover -coverprofile=coverage.out -v $$(echo $$(go list ./... | grep -v /test/))
 
 .PHONY: test-integration
 test-integration: download-tokenizer install-dependencies ## Run integration tests