enable codecoverage

.github/workflows/test.yml

@@ -14,7 +14,7 @@ jobs:
         go-version: ${{ matrix.go-version }}
     - name: Checkout code
       uses: actions/checkout@v2
-    - id: cache-paths
+    - id: go-env
       run: |
         echo "::set-output name=cache::$(go env GOCACHE)"
         echo "::set-output name=mod-cache::$(go env GOMODCACHE)"
@@ -22,10 +22,17 @@ jobs:
       uses: actions/cache@v2
       with:
         path: |
-          ${{ steps.cache-paths.outputs.cache }}
-          ${{ steps.cache-paths.outputs.mod-cache }}
+          ${{ steps.go-env.outputs.cache }}
+          ${{ steps.go-env.outputs.mod-cache }}
         key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
         restore-keys: ${{ runner.os }}-go-
     - name: Test
       run: |
-        go test ./...
+        go test -coverprofile='coverage.out' -covermode=atomic ./...
+    - name: Upload Code Coverage
+      uses: codecov/codecov-action@v2
+      with:
+        fail_ci_if_error: true
+        files: coverage.out
+        flags: ${{ matrix.os }},go-${{ matrix.go-version }}
+        token: ${{ secrets.CODECOV_TOKEN }}