// Copyright 2011 The Go Authors.  All rights reserved.

// Use of this source code is governed by a BSD-style

// license that can be found in the LICENSE file.

package xmpp

import (

	"encoding/xml"

	"reflect"

	"testing"

)

// This is mostly just tests of the roster data structures.

func TestRosterIqMarshal(t *testing.T) {

	iq := &Iq{From: "from", Lang: "en", Nested: []interface{}{RosterQuery{}}}

	exp := `<iq from="from" xml:lang="en"><query xmlns="` +

		NsRoster + `"></query></iq>`

	assertMarshal(t, exp, iq)

}

func TestRosterIqUnmarshal(t *testing.T) {

	str := `<iq from="from" xml:lang="en"><query xmlns="` +

		NsRoster + `"><item jid="a@b.c"/></query></iq>`

	var st Stanza = &Iq{}

	err := xml.Unmarshal([]byte(str), st)

	if err != nil {

		t.Fatalf("Unmarshal: %v", err)

	}

	assertEquals(t, "from", st.GetFrom())

	m := map[string]func(*xml.Name) interface{}{NsRoster: newRosterQuery}

	err = parseExtended(st, m)

	if err != nil {

		t.Fatalf("parseExtended: %v", err)

	}

	assertEquals(t, "iq", st.GetName())

	assertEquals(t, "from", st.GetFrom())

	assertEquals(t, "en", st.GetLang())

	nested := st.GetNested()

	if nested == nil {

		t.Fatalf("nested nil")

	}

	if len(nested) != 1 {

		t.Fatalf("wrong size nested(%d): %v", len(nested),

			nested)

	}

	var rq *RosterQuery

	rq, ok := nested[0].(*RosterQuery)

	if !ok {

		t.Fatalf("nested not RosterQuery: %v",

			reflect.TypeOf(nested))

	}

	if len(rq.Item) != 1 {

		t.Fatalf("Wrong # items: %v", rq.Item)

	}

	item := rq.Item[0]

	assertEquals(t, "a@b.c", item.Jid)

}