package host

import (
	"testing"
	"time"

	"github.com/carlosframework/platform/internal/hostops"
)

// M7: an idle reset worker backs off its bucket listing instead of listing
// every second per box, and returns to the fast poll once a request appears.
func TestPlan9M7ResetWorkerBacksOffIdleListing(t *testing.T) {
	poll := resetPollMin
	var got []time.Duration
	for range 6 {
		poll = nextResetPoll(poll, 0)
		got = append(got, poll)
	}
	want := []time.Duration{2 * time.Second, 4 * time.Second, 8 * time.Second, 8 * time.Second, 8 * time.Second, 8 * time.Second}
	for i := range want {
		if got[i] != want[i] {
			t.Fatalf("idle polls = %v, want %v", got, want)
		}
	}
	// A new request still dispatches early in its lifetime.
	if resetPollMax > hostops.WakeResetLifetime/8 {
		t.Fatalf("idle poll %v is too long for a %v request", resetPollMax, hostops.WakeResetLifetime)
	}
	if poll = nextResetPoll(poll, 1); poll != resetPollMin {
		t.Fatalf("a listed request kept the slow poll: %v", poll)
	}
}