test: failed to get sub viper (#20981)

.github/workflows/v2-test.yml

@@ -14,6 +14,30 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
+  server-v2:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-go@v5
+        with:
+          go-version: "1.22"
+          check-latest: true
+          cache: true
+          cache-dependency-path: go.sum
+      - uses: technote-space/get-diff-action@v6.1.2
+        id: git_diff
+        with:
+          PATTERNS: |
+            server/v2/*.go
+            server/v2/go.mod
+            server/v2/go.sum
+            server/v2/testdata/*.toml
+      - name: test & coverage report creation
+        if: env.GIT_DIFF
+        run: |
+          cd server/v2 && go test -mod=readonly -race -timeout 30m -covermode=atomic -tags='ledger test_ledger_mock'
   stf:
     runs-on: ubuntu-latest
     strategy:

server/v2/server_test.go

@@ -129,6 +129,6 @@ func TestReadConfig(t *testing.T) {
 	require.NoError(t, err)
 
 	grpcConfig := grpc.DefaultConfig()
-	err = v.Sub("grpc-server").Unmarshal(&grpcConfig)
+	err = v.Sub("grpc").Unmarshal(&grpcConfig)
 	require.NoError(t, err)
 }