} else {
			noTick()
		}
		if pending, want := tim.Reset(Hour), isTicker; pending != want {
			t.Errorf("tim.Stop() = %v, want %v", pending, want)
		}
		noTick()
	}
}

func TestManualTicker(t *testing.T) {
	// Code should not do this, but some old code dating to Go 1.9 does.
	// Make sure this doesn't crash.
	// See go.dev/issue/21874.
	c := make(chan Time)
	tick := &Ticker{C: c}
	tick.Stop()