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Add tests for new discovery
This commit is contained in:
Audrius Butkevicius
parent
69f8ac6b56
commit
2912defb97
227
internal/discover/client_test.go
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227
internal/discover/client_test.go
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@ -0,0 +1,227 @@
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// Copyright (C) 2014 The Syncthing Authors.
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//
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// This program is free software: you can redistribute it and/or modify it
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// under the terms of the GNU General Public License as published by the Free
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// Software Foundation, either version 3 of the License, or (at your option)
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// any later version.
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//
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// This program is distributed in the hope that it will be useful, but WITHOUT
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// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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// more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with this program. If not, see <http://www.gnu.org/licenses/>.
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package discover
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import (
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"fmt"
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"net"
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"sync"
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"time"
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"testing"
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"github.com/syncthing/syncthing/internal/protocol"
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)
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var device protocol.DeviceID
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func init() {
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device, _ = protocol.DeviceIDFromString("P56IOI7-MZJNU2Y-IQGDREY-DM2MGTI-MGL3BXN-PQ6W5BM-TBBZ4TJ-XZWICQ2")
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}
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func TestUDP4Success(t *testing.T) {
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conn, err := net.ListenUDP("udp4", nil)
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if err != nil {
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t.Fatal(err)
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}
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port := conn.LocalAddr().(*net.UDPAddr).Port
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address := fmt.Sprintf("udp4://127.0.0.1:%d", port)
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pkt := &Announce{
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Magic: AnnouncementMagic,
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This: Device{
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device[:],
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[]Address{{
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IP: net.IPv4(123, 123, 123, 123),
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Port: 1234,
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}},
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},
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}
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client, err := New(address, pkt)
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if err != nil {
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t.Fatal(err)
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}
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udpclient := client.(*UDPClient)
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if udpclient.errorRetryInterval != DefaultErrorRetryInternval {
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t.Fatal("Incorrect retry interval")
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}
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if udpclient.listenAddress.IP != nil || udpclient.listenAddress.Port != 0 {
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t.Fatal("Wrong listen IP or port", udpclient.listenAddress)
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}
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if client.Address() != address {
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t.Fatal("Incorrect address")
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}
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buf := make([]byte, 2048)
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// First announcement
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conn.SetDeadline(time.Now().Add(time.Millisecond * 100))
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_, err = conn.Read(buf)
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if err != nil {
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t.Fatal(err)
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}
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// Announcement verification
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conn.SetDeadline(time.Now().Add(time.Millisecond * 1100))
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_, addr, err := conn.ReadFromUDP(buf)
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if err != nil {
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t.Fatal(err)
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}
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// Reply to it.
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_, err = conn.WriteToUDP(pkt.MustMarshalXDR(), addr)
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if err != nil {
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t.Fatal(err)
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}
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// We should get nothing else
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conn.SetDeadline(time.Now().Add(time.Millisecond * 100))
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_, err = conn.Read(buf)
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if err == nil {
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t.Fatal("Expected error")
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}
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// Status should be ok
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if !client.StatusOK() {
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t.Fatal("Wrong status")
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}
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// Do a lookup in a separate routine
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addrs := []string{}
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wg := sync.WaitGroup{}
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wg.Add(1)
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go func() {
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addrs = client.Lookup(device)
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wg.Done()
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}()
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// Receive the lookup and reply
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conn.SetDeadline(time.Now().Add(time.Millisecond * 100))
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_, addr, err = conn.ReadFromUDP(buf)
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if err != nil {
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t.Fatal(err)
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}
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conn.WriteToUDP(pkt.MustMarshalXDR(), addr)
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// Wait for the lookup to arrive, verify that the number of answers is correct
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wg.Wait()
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if len(addrs) != 1 || addrs[0] != "123.123.123.123:1234" {
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t.Fatal("Wrong number of answers")
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}
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client.Stop()
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}
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func TestUDP4Failure(t *testing.T) {
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conn, err := net.ListenUDP("udp4", nil)
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if err != nil {
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t.Fatal(err)
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}
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port := conn.LocalAddr().(*net.UDPAddr).Port
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address := fmt.Sprintf("udp4://127.0.0.1:%d/?listenaddress=127.0.0.1&retry=5", port)
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pkt := &Announce{
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Magic: AnnouncementMagic,
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This: Device{
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device[:],
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[]Address{{
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IP: net.IPv4(123, 123, 123, 123),
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Port: 1234,
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}},
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},
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}
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client, err := New(address, pkt)
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if err != nil {
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t.Fatal(err)
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}
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udpclient := client.(*UDPClient)
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if udpclient.errorRetryInterval != time.Second*5 {
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t.Fatal("Incorrect retry interval")
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}
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if !udpclient.listenAddress.IP.Equal(net.IPv4(127, 0, 0, 1)) || udpclient.listenAddress.Port != 0 {
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t.Fatal("Wrong listen IP or port", udpclient.listenAddress)
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}
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if client.Address() != address {
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t.Fatal("Incorrect address")
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}
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buf := make([]byte, 2048)
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// First announcement
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conn.SetDeadline(time.Now().Add(time.Millisecond * 100))
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_, err = conn.Read(buf)
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if err != nil {
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t.Fatal(err)
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}
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// Announcement verification
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conn.SetDeadline(time.Now().Add(time.Millisecond * 1100))
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_, _, err = conn.ReadFromUDP(buf)
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if err != nil {
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t.Fatal(err)
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}
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// Don't reply
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// We should get nothing else
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conn.SetDeadline(time.Now().Add(time.Millisecond * 100))
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_, err = conn.Read(buf)
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if err == nil {
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t.Fatal("Expected error")
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}
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// Status should be failure
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if client.StatusOK() {
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t.Fatal("Wrong status")
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}
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// Do a lookup in a separate routine
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addrs := []string{}
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wg := sync.WaitGroup{}
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wg.Add(1)
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go func() {
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addrs = client.Lookup(device)
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wg.Done()
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}()
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// Receive the lookup and don't reply
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conn.SetDeadline(time.Now().Add(time.Millisecond * 100))
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_, _, err = conn.ReadFromUDP(buf)
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if err != nil {
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t.Fatal(err)
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}
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// Wait for the lookup to timeout, verify that the number of answers is none
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wg.Wait()
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if len(addrs) != 0 {
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t.Fatal("Wrong number of answers")
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}
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client.Stop()
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}
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@ -13,6 +13,136 @@
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// You should have received a copy of the GNU General Public License along
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// with this program. If not, see <http://www.gnu.org/licenses/>.
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package discover_test
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package discover
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// Empty test file to generate 0% coverage rather than no coverage
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import (
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"net/url"
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"time"
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"testing"
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"github.com/syncthing/syncthing/internal/protocol"
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)
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type DummyClient struct {
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url *url.URL
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lookups []protocol.DeviceID
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lookupRet []string
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stops int
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statusRet bool
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statusChecks int
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}
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func (c *DummyClient) Lookup(device protocol.DeviceID) []string {
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c.lookups = append(c.lookups, device)
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return c.lookupRet
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}
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func (c *DummyClient) StatusOK() bool {
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c.statusChecks++
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return c.statusRet
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}
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func (c *DummyClient) Stop() {
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c.stops++
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}
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func (c *DummyClient) Address() string {
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return c.url.String()
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}
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func TestGlobalDiscovery(t *testing.T) {
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c1 := &DummyClient{
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statusRet: false,
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lookupRet: []string{"test.com:1234"},
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}
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c2 := &DummyClient{
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statusRet: true,
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lookupRet: []string{},
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}
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c3 := &DummyClient{
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statusRet: true,
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lookupRet: []string{"best.com:2345"},
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}
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clients := []*DummyClient{c1, c2}
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Register("test1", func(uri *url.URL, pkt *Announce) (Client, error) {
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c := clients[0]
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clients = clients[1:]
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c.url = uri
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return c, nil
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})
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Register("test2", func(uri *url.URL, pkt *Announce) (Client, error) {
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c3.url = uri
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return c3, nil
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})
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d := NewDiscoverer(device, []string{})
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d.localBcastStart = time.Time{}
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servers := []string{
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"test1://123.123.123.123:1234",
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"test1://23.23.23.23:234",
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"test2://234.234.234.234.2345",
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}
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d.StartGlobal(servers, 1234)
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if len(d.clients) != 3 {
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t.Fatal("Wrong number of clients")
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}
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status := d.ExtAnnounceOK()
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for _, c := range []*DummyClient{c1, c2, c3} {
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if status[c.url.String()] != c.statusRet || c.statusChecks != 1 {
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t.Fatal("Wrong status")
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}
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}
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addrs := d.Lookup(device)
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if len(addrs) != 2 {
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t.Fatal("Wrong numer of addresses", addrs)
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}
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for _, addr := range []string{"test.com:1234", "best.com:2345"} {
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found := false
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for _, laddr := range addrs {
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if laddr == addr {
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found = true
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break
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}
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}
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if !found {
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t.Fatal("Couldn't find", addr)
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}
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}
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for _, c := range []*DummyClient{c1, c2, c3} {
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if len(c.lookups) != 1 || c.lookups[0] != device {
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t.Fatal("Wrong lookups")
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}
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}
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addrs = d.Lookup(device)
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if len(addrs) != 2 {
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t.Fatal("Wrong numer of addresses", addrs)
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}
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// Answer should be cached, so number of lookups should have not incresed
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for _, c := range []*DummyClient{c1, c2, c3} {
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if len(c.lookups) != 1 || c.lookups[0] != device {
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t.Fatal("Wrong lookups")
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}
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}
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d.StopGlobal()
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for _, c := range []*DummyClient{c1, c2, c3} {
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if c.stops != 1 {
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t.Fatal("Wrong number of stops")
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}
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}
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}
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