package system

import (
	"context"
	"strings"
	"testing"
)

// Third review of mesh-catalog #147: a unit's name reaches systemctl as an argument, and since a setting
// may now name a template's instance, a name beginning with '-' must never be read as an option. Every
// call that names a unit passes `--` before it.
func TestEverySystemctlCallPassesDashDashBeforeTheUnit(t *testing.T) {
	var asked [][]string
	run := func(_ context.Context, name string, args ...string) (string, error) {
		if name == "systemctl" {
			asked = append(asked, args)
		}
		return "LoadState=loaded\nActiveState=active\nType=simple\nFragmentPath=/x\n", nil
	}
	ctx := context.Background()
	a := arch{}
	unit := "-x@y.timer"
	a.ServiceState(ctx, run, unit)
	a.SetServiceState(ctx, run, unit, "running")
	a.SetServiceState(ctx, run, unit, "stopped")
	a.ServiceBoot(ctx, run, unit)
	a.SetServiceBoot(ctx, run, unit, "enabled")
	a.SetServiceBoot(ctx, run, unit, "disabled")
	if len(asked) != 6 {
		t.Fatalf("asked %d times: %v", len(asked), asked)
	}
	for _, args := range asked {
		if len(args) < 2 || args[len(args)-1] != unit || args[len(args)-2] != "--" {
			t.Errorf("systemctl %s", strings.Join(args, " "))
		}
	}
}