func TestClientHostPort(t *testing.T) {
ctx, cancel := NewContext(time.Second * 10)
defer cancel()
s1ch, err := testutils.NewServer(nil)
require.NoError(t, err, "testutils.NewServer failed")
s2ch, err := testutils.NewServer(nil)
require.NoError(t, err, "testutils.NewServer failed")
defer s1ch.Close()
defer s2ch.Close()
s1ch.Peers().Add(s2ch.PeerInfo().HostPort)
s2ch.Peers().Add(s1ch.PeerInfo().HostPort)
mock1, mock2 := new(mocks.TChanSecondService), new(mocks.TChanSecondService)
NewServer(s1ch).Register(gen.NewTChanSecondServiceServer(mock1))
NewServer(s2ch).Register(gen.NewTChanSecondServiceServer(mock2))
// When we call using a normal client, it can only call the other server (only peer).
c1 := gen.NewTChanSecondServiceClient(NewClient(s1ch, s2ch.PeerInfo().ServiceName, nil))
mock2.On("Echo", ctxArg(), "call1").Return("call1", nil)
res, err := c1.Echo(ctx, "call1")
assert.NoError(t, err, "call1 failed")
assert.Equal(t, "call1", res)
// When we call using a client that specifies host:port, it should call that server.
c2 := gen.NewTChanSecondServiceClient(NewClient(s1ch, s1ch.PeerInfo().ServiceName, &ClientOptions{
HostPort: s1ch.PeerInfo().HostPort,
}))
mock1.On("Echo", ctxArg(), "call2").Return("call2", nil)
res, err = c2.Echo(ctx, "call2")
assert.NoError(t, err, "call2 failed")
assert.Equal(t, "call2", res)
}
func TestContextBuilder(t *testing.T) {
ctx, cancel := tchannel.NewContextBuilder(time.Second).SetShardKey("shard").Build()
defer cancel()
var called bool
testutils.WithServer(nil, func(ch *tchannel.Channel, hostPort string) {
peerInfo := ch.PeerInfo()
testutils.RegisterFunc(t, ch, "SecondService::Echo", func(ctx context.Context, args *raw.Args) (*raw.Res, error) {
call := tchannel.CurrentCall(ctx)
assert.Equal(t, peerInfo.ServiceName, call.CallerName(), "unexpected caller name")
assert.Equal(t, "shard", call.ShardKey(), "unexpected shard key")
assert.Equal(t, tchannel.Thrift, args.Format)
called = true
return nil, errors.New("err")
})
client := NewClient(ch, ch.PeerInfo().ServiceName, &ClientOptions{
HostPort: peerInfo.HostPort,
})
secondClient := gen.NewTChanSecondServiceClient(client)
secondClient.Echo(ctx, "asd")
assert.True(t, called, "test not called")
})
}
func TestRequestSubChannel(t *testing.T) {
ctx, cancel := NewContext(time.Second)
defer cancel()
tchan, err := tchannel.NewChannel("svc1", nil)
require.NoError(t, err, "server NewChannel failed")
require.NoError(t, tchan.ListenAndServe(":0"), "Listen failed")
defer tchan.Close()
clientCh, err := tchannel.NewChannel("client", nil)
require.NoError(t, err, "client NewChannel failed")
defer clientCh.Close()
clientCh.Peers().Add(tchan.PeerInfo().HostPort)
tests := []tchannel.Registrar{tchan, tchan.GetSubChannel("svc2"), tchan.GetSubChannel("svc3")}
for _, ch := range tests {
mockHandler := new(mocks.TChanSecondService)
server := NewServer(ch)
server.Register(gen.NewTChanSecondServiceServer(mockHandler))
client := NewClient(clientCh, ch.ServiceName(), nil)
secondClient := gen.NewTChanSecondServiceClient(client)
echoArg := ch.ServiceName()
echoRes := echoArg + "-echo"
mockHandler.On("Echo", ctxArg(), echoArg).Return(echoRes, nil)
res, err := secondClient.Echo(ctx, echoArg)
assert.NoError(t, err, "Echo failed")
assert.Equal(t, echoRes, res)
}
}
func getClients(dst string) (gen.TChanSimpleService, gen.TChanSecondService, error) {
tchan, err := tchannel.NewChannel("client", &tchannel.ChannelOptions{
Logger: tchannel.SimpleLogger,
})
if err != nil {
return nil, nil, err
}
tchan.Peers().Add(dst)
client := NewClient(tchan, "service", nil)
simpleClient := gen.NewTChanSimpleServiceClient(client)
secondClient := gen.NewTChanSecondServiceClient(client)
return simpleClient, secondClient, nil
}