mu.Lock()
	if !gotReq {
		t.Error("didn't get request")
	}
	if !didDial {
		t.Error("didn't use dial hook")
	}
}

func TestTransportDialContext(t *testing.T) { run(t, testTransportDialContext) }
func testTransportDialContext(t *testing.T, mode testMode) {
	ctxKey := "some-key"
	ctxValue := "some-value"
	var (
		mu          sync.Mutex // guards following
		gotReq      bool