Reduce buffer size in queue_test

submission/queue_test.go

@@ -121,7 +121,8 @@ func TestSubmitter_HighRate(t *testing.T) {
 func TestSubmitter_HighRate_Buffered(t *testing.T) {
 	// Same as above but with smaller MaxStored.
 	sent, calls := runTest(t, "qps=1000/buffered", &Options{
-		MaxStored: 100,
+		MaxStored:      100,
+		ChanBufferSize: 1,
 	}, 1000)
 	expected := 1 + sent/100
 	if calls != expected {