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332 lines
7.4 KiB
332 lines
7.4 KiB
package rpc
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import (
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"bytes"
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crand "crypto/rand"
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"encoding/json"
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"fmt"
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"math/rand"
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"net/http"
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"os/exec"
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"github.com/tendermint/go-wire/data"
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client "github.com/tendermint/tendermint/rpc/lib/client"
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server "github.com/tendermint/tendermint/rpc/lib/server"
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types "github.com/tendermint/tendermint/rpc/lib/types"
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)
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// Client and Server should work over tcp or unix sockets
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const (
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tcpAddr = "tcp://0.0.0.0:47768"
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unixSocket = "/tmp/rpc_test.sock"
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unixAddr = "unix://" + unixSocket
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websocketEndpoint = "/websocket/endpoint"
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)
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type ResultEcho struct {
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Value string `json:"value"`
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}
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type ResultEchoInt struct {
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Value int `json:"value"`
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}
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type ResultEchoBytes struct {
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Value []byte `json:"value"`
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}
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type ResultEchoDataBytes struct {
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Value data.Bytes `json:"value"`
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}
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// Define some routes
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var Routes = map[string]*server.RPCFunc{
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"echo": server.NewRPCFunc(EchoResult, "arg"),
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"echo_ws": server.NewWSRPCFunc(EchoWSResult, "arg"),
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"echo_bytes": server.NewRPCFunc(EchoBytesResult, "arg"),
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"echo_data_bytes": server.NewRPCFunc(EchoDataBytesResult, "arg"),
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"echo_int": server.NewRPCFunc(EchoIntResult, "arg"),
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}
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func EchoResult(v string) (*ResultEcho, error) {
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return &ResultEcho{v}, nil
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}
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func EchoWSResult(wsCtx types.WSRPCContext, v string) (*ResultEcho, error) {
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return &ResultEcho{v}, nil
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}
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func EchoIntResult(v int) (*ResultEchoInt, error) {
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return &ResultEchoInt{v}, nil
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}
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func EchoBytesResult(v []byte) (*ResultEchoBytes, error) {
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return &ResultEchoBytes{v}, nil
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}
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func EchoDataBytesResult(v data.Bytes) (*ResultEchoDataBytes, error) {
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return &ResultEchoDataBytes{v}, nil
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}
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// launch unix and tcp servers
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func init() {
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cmd := exec.Command("rm", "-f", unixSocket)
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err := cmd.Start()
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if err != nil {
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panic(err)
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}
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if err = cmd.Wait(); err != nil {
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panic(err)
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}
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mux := http.NewServeMux()
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server.RegisterRPCFuncs(mux, Routes)
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wm := server.NewWebsocketManager(Routes, nil)
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mux.HandleFunc(websocketEndpoint, wm.WebsocketHandler)
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go func() {
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_, err := server.StartHTTPServer(tcpAddr, mux)
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if err != nil {
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panic(err)
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}
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}()
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mux2 := http.NewServeMux()
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server.RegisterRPCFuncs(mux2, Routes)
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wm = server.NewWebsocketManager(Routes, nil)
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mux2.HandleFunc(websocketEndpoint, wm.WebsocketHandler)
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go func() {
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_, err := server.StartHTTPServer(unixAddr, mux2)
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if err != nil {
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panic(err)
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}
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}()
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// wait for servers to start
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time.Sleep(time.Second * 2)
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}
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func echoViaHTTP(cl client.HTTPClient, val string) (string, error) {
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params := map[string]interface{}{
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"arg": val,
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}
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result := new(ResultEcho)
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if _, err := cl.Call("echo", params, result); err != nil {
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return "", err
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}
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return result.Value, nil
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}
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func echoIntViaHTTP(cl client.HTTPClient, val int) (int, error) {
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params := map[string]interface{}{
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"arg": val,
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}
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result := new(ResultEchoInt)
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if _, err := cl.Call("echo_int", params, result); err != nil {
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return 0, err
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}
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return result.Value, nil
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}
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func echoBytesViaHTTP(cl client.HTTPClient, bytes []byte) ([]byte, error) {
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params := map[string]interface{}{
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"arg": bytes,
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}
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result := new(ResultEchoBytes)
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if _, err := cl.Call("echo_bytes", params, result); err != nil {
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return []byte{}, err
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}
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return result.Value, nil
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}
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func echoDataBytesViaHTTP(cl client.HTTPClient, bytes data.Bytes) (data.Bytes, error) {
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params := map[string]interface{}{
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"arg": bytes,
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}
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result := new(ResultEchoDataBytes)
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if _, err := cl.Call("echo_data_bytes", params, result); err != nil {
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return []byte{}, err
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}
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return result.Value, nil
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}
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func testWithHTTPClient(t *testing.T, cl client.HTTPClient) {
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val := "acbd"
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got, err := echoViaHTTP(cl, val)
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require.Nil(t, err)
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assert.Equal(t, got, val)
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val2 := randBytes(t)
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got2, err := echoBytesViaHTTP(cl, val2)
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require.Nil(t, err)
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assert.Equal(t, got2, val2)
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val3 := data.Bytes(randBytes(t))
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got3, err := echoDataBytesViaHTTP(cl, val3)
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require.Nil(t, err)
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assert.Equal(t, got3, val3)
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val4 := rand.Intn(10000)
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got4, err := echoIntViaHTTP(cl, val4)
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require.Nil(t, err)
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assert.Equal(t, got4, val4)
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}
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func echoViaWS(cl *client.WSClient, val string) (string, error) {
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params := map[string]interface{}{
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"arg": val,
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}
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err := cl.Call("echo", params)
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if err != nil {
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return "", err
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}
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select {
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case msg := <-cl.ResultsCh:
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result := new(ResultEcho)
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err = json.Unmarshal(msg, result)
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if err != nil {
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return "", nil
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}
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return result.Value, nil
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case err := <-cl.ErrorsCh:
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return "", err
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}
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}
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func echoBytesViaWS(cl *client.WSClient, bytes []byte) ([]byte, error) {
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params := map[string]interface{}{
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"arg": bytes,
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}
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err := cl.Call("echo_bytes", params)
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if err != nil {
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return []byte{}, err
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}
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select {
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case msg := <-cl.ResultsCh:
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result := new(ResultEchoBytes)
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err = json.Unmarshal(msg, result)
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if err != nil {
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return []byte{}, nil
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}
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return result.Value, nil
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case err := <-cl.ErrorsCh:
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return []byte{}, err
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}
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}
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func testWithWSClient(t *testing.T, cl *client.WSClient) {
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val := "acbd"
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got, err := echoViaWS(cl, val)
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require.Nil(t, err)
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assert.Equal(t, got, val)
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val2 := randBytes(t)
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got2, err := echoBytesViaWS(cl, val2)
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require.Nil(t, err)
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assert.Equal(t, got2, val2)
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}
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//-------------
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func TestServersAndClientsBasic(t *testing.T) {
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serverAddrs := [...]string{tcpAddr, unixAddr}
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for _, addr := range serverAddrs {
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cl1 := client.NewURIClient(addr)
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fmt.Printf("=== testing server on %s using %v client", addr, cl1)
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testWithHTTPClient(t, cl1)
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cl2 := client.NewJSONRPCClient(tcpAddr)
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fmt.Printf("=== testing server on %s using %v client", addr, cl2)
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testWithHTTPClient(t, cl2)
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cl3 := client.NewWSClient(tcpAddr, websocketEndpoint)
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_, err := cl3.Start()
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require.Nil(t, err)
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fmt.Printf("=== testing server on %s using %v client", addr, cl3)
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testWithWSClient(t, cl3)
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cl3.Stop()
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}
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}
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func TestHexStringArg(t *testing.T) {
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cl := client.NewURIClient(tcpAddr)
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// should NOT be handled as hex
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val := "0xabc"
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got, err := echoViaHTTP(cl, val)
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require.Nil(t, err)
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assert.Equal(t, got, val)
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}
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func TestQuotedStringArg(t *testing.T) {
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cl := client.NewURIClient(tcpAddr)
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// should NOT be unquoted
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val := "\"abc\""
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got, err := echoViaHTTP(cl, val)
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require.Nil(t, err)
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assert.Equal(t, got, val)
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}
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func TestWSNewWSRPCFunc(t *testing.T) {
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cl := client.NewWSClient(tcpAddr, websocketEndpoint)
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_, err := cl.Start()
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require.Nil(t, err)
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defer cl.Stop()
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val := "acbd"
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params := map[string]interface{}{
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"arg": val,
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}
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err = cl.Call("echo_ws", params)
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require.Nil(t, err)
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select {
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case msg := <-cl.ResultsCh:
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result := new(ResultEcho)
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err = json.Unmarshal(msg, result)
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require.Nil(t, err)
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got := result.Value
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assert.Equal(t, got, val)
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case err := <-cl.ErrorsCh:
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t.Fatal(err)
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}
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}
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func TestWSHandlesArrayParams(t *testing.T) {
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cl := client.NewWSClient(tcpAddr, websocketEndpoint)
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_, err := cl.Start()
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require.Nil(t, err)
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defer cl.Stop()
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val := "acbd"
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params := []interface{}{val}
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request, err := types.ArrayToRequest("", "echo_ws", params)
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require.Nil(t, err)
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err = cl.WriteJSON(request)
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require.Nil(t, err)
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select {
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case msg := <-cl.ResultsCh:
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result := new(ResultEcho)
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err = json.Unmarshal(msg, result)
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require.Nil(t, err)
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got := result.Value
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assert.Equal(t, got, val)
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case err := <-cl.ErrorsCh:
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t.Fatalf("%+v", err)
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}
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}
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func randBytes(t *testing.T) []byte {
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n := rand.Intn(10) + 2
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buf := make([]byte, n)
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_, err := crand.Read(buf)
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require.Nil(t, err)
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return bytes.Replace(buf, []byte("="), []byte{100}, -1)
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}
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