.

go/internal/xtesting/xtesting.go

@@ -479,6 +479,7 @@ func DrvTestWatch(t *testing.T, zurl string, zdrvOpen zodb.DriverOpener, bugv ..
 // FatalIf(t) returns function f(err), which call t.Fatal if err != nil.
 func FatalIf(t *testing.T) func(error) {
 	return func(err error) {
+		t.Helper()
 		if err != nil {
 			t.Fatal(err)
 		}

go/zodb/storage/demo/demo_test.go

@@ -212,6 +212,9 @@ func TestWatchLoad_vs_BaseMutate(t *testing.T) {
 			ReadOnly: true,
 			Watchq:   watchq,
 		}); X(err)
+		defer func() {
+			err := ddrv.Close(); X(err)
+		}()
 
 		tid, err := ddat.MutateBase(); X(err)