package sysuser

import "testing"

func TestIsSelf(t *testing.T) {
	if !IsSelf("") {
		t.Error("empty user must be self")
	}
	if cur := Current(); cur != "" && !IsSelf(cur) {
		t.Errorf("current user %q must be self", cur)
	}
}

func TestCommand_Self(t *testing.T) {
	cmd, err := Command(Current(), "true")
	if err != nil {
		t.Fatalf("Command() error: %v", err)
	}
	if cmd.Args[0] != "true" {
		t.Errorf("self command should run directly, got %v", cmd.Args)
	}
}

func TestCommand_OtherUserRequiresRoot(t *testing.T) {
	if IsRoot() {
		t.Skip("running as root")
	}
	if _, err := Command("root", "true"); err == nil {
		t.Error("running as another user without root should error")
	}
}