package load

import (
	"fmt"
	"testing"

	"github.com/shirou/gopsutil/internal/common"
)

func skipIfNotImplementedErr(t *testing.T, err error) {
	if err == common.ErrNotImplementedError {
		t.Skip("not implemented")
	}
}

func TestLoad(t *testing.T) {
	v, err := Avg()
	skipIfNotImplementedErr(t, err)
	if err != nil {
		t.Errorf("error %v", err)
	}

	empty := &AvgStat{}
	if v == empty {
		t.Errorf("error load: %v", v)
	}
	t.Log(v)
}

// Commented out to not to slow down CI
// Do conduct heavy cpu load on he computer to observe change
// func TestLoadWithInterval(t *testing.T) {
// 	interval := 5
// 	iteration := 110 / interval

// 	for i := 0; i < iteration; i++ {
// 		v, err := Avg()
// 		skipIfNotImplementedErr(t, err)
// 		if err != nil {
// 			t.Errorf("error %v", err)
// 		}
// 		t.Log(v)
// 		time.Sleep(time.Duration(interval) * time.Second)
// 	}
// }

func TestLoadAvgStat_String(t *testing.T) {
	v := AvgStat{
		Load1:  10.1,
		Load5:  20.1,
		Load15: 30.1,
	}
	e := `{"load1":10.1,"load5":20.1,"load15":30.1}`
	if e != fmt.Sprintf("%v", v) {
		t.Errorf("LoadAvgStat string is invalid: %v", v)
	}
	t.Log(e)
}

func TestMisc(t *testing.T) {
	v, err := Misc()
	skipIfNotImplementedErr(t, err)
	if err != nil {
		t.Errorf("error %v", err)
	}

	empty := &MiscStat{}
	if v == empty {
		t.Errorf("error load: %v", v)
	}
	t.Log(v)
}

func TestMiscStatString(t *testing.T) {
	v := MiscStat{
		ProcsTotal:   4,
		ProcsRunning: 1,
		ProcsBlocked: 2,
		Ctxt:         3,
	}
	e := `{"procsTotal":4,"procsRunning":1,"procsBlocked":2,"ctxt":3}`
	if e != fmt.Sprintf("%v", v) {
		t.Errorf("TestMiscString string is invalid: %v", v)
	}
	t.Log(e)
}