Unified Storage Indexer: Add integration tests (#95687)

* indexer integration tests WIP

* make protobuf

* Adds a few more integration test cases to cover the basics. Use Limit instead of Size param from SearchRequest.

* skip if testing.Short()

* adds test comments

pkg/storage/unified/sql/test/integration_test.go

@@ -29,11 +29,13 @@ func TestMain(m *testing.M) {
 	testsuite.Run(m)
 }
 
-func newServer(t *testing.T) (sql.Backend, resource.ResourceServer) {
+func newServer(t *testing.T, cfg *setting.Cfg) (sql.Backend, resource.ResourceServer) {
 	t.Helper()
+	if cfg == nil {
+		cfg = setting.NewCfg()
+	}
 
 	dbstore := infraDB.InitTestDB(t)
-	cfg := setting.NewCfg()
 
 	eDB, err := dbimpl.ProvideResourceDB(dbstore, cfg, nil)
 	require.NoError(t, err)
@@ -52,6 +54,7 @@ func newServer(t *testing.T) (sql.Backend, resource.ResourceServer) {
 		Backend:     ret,
 		Diagnostics: ret,
 		Lifecycle:   ret,
+		Index:       resource.NewResourceIndexServer(cfg, tracing.NewNoopTracerService()),
 	})
 	require.NoError(t, err)
 	require.NotNil(t, server)
@@ -76,7 +79,7 @@ func TestIntegrationBackendHappyPath(t *testing.T) {
 		IsGrafanaAdmin: true, // can do anything
 	}
 	ctx := identity.WithRequester(context.Background(), testUserA)
-	backend, server := newServer(t)
+	backend, server := newServer(t, nil)
 
 	stream, err := backend.WatchWriteEvents(context.Background()) // Using a different context to avoid canceling the stream after the DefaultContextTimeout
 	require.NoError(t, err)
@@ -179,7 +182,7 @@ func TestIntegrationBackendWatchWriteEventsFromLastest(t *testing.T) {
 	}
 
 	ctx := testutil.NewTestContext(t, time.Now().Add(5*time.Second))
-	backend, _ := newServer(t)
+	backend, _ := newServer(t, nil)
 
 	// Create a few resources before initing the watch
 	_, err := writeEvent(ctx, backend, "item1", resource.WatchEvent_ADDED)
@@ -204,7 +207,7 @@ func TestIntegrationBackendList(t *testing.T) {
 	}
 
 	ctx := testutil.NewTestContext(t, time.Now().Add(5*time.Second))
-	backend, server := newServer(t)
+	backend, server := newServer(t, nil)
 
 	// Create a few resources before starting the watch
 	rv1, _ := writeEvent(ctx, backend, "item1", resource.WatchEvent_ADDED)