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266 lines
5.5 KiB
266 lines
5.5 KiB
package rpc
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import (
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"bytes"
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crand "crypto/rand"
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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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client "github.com/tendermint/go-rpc/client"
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server "github.com/tendermint/go-rpc/server"
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types "github.com/tendermint/go-rpc/types"
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wire "github.com/tendermint/go-wire"
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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://0.0.0.0:46657"
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unixSocket = "/tmp/go-rpc.sock"
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unixAddr = "unix:///tmp/go-rpc.sock"
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websocketEndpoint = "/websocket/endpoint"
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)
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// Define a type for results and register concrete versions
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type Result interface{}
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type ResultStatus struct {
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Value string
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}
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type ResultBytes struct {
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Value []byte
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}
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var _ = wire.RegisterInterface(
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struct{ Result }{},
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wire.ConcreteType{&ResultStatus{}, 0x1},
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wire.ConcreteType{&ResultBytes{}, 0x2},
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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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"status": server.NewRPCFunc(StatusResult, "arg"),
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"status_ws": server.NewWSRPCFunc(StatusWSResult, "arg"),
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"bytes": server.NewRPCFunc(BytesResult, "arg"),
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}
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// an rpc function
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func StatusResult(v string) (Result, error) {
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return &ResultStatus{v}, nil
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}
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func StatusWSResult(wsCtx types.WSRPCContext, v string) (Result, error) {
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return &ResultStatus{v}, nil
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}
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func BytesResult(v []byte) (Result, error) {
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return &ResultBytes{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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err = cmd.Wait()
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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 testURI(t *testing.T, cl *client.URIClient) {
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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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var result Result
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_, err := cl.Call("status", params, &result)
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require.Nil(t, err)
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got := result.(*ResultStatus).Value
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assert.Equal(t, got, val)
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}
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func testJSONRPC(t *testing.T, cl *client.JSONRPCClient) {
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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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var result Result
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_, err := cl.Call("status", params, &result)
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require.Nil(t, err)
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got := result.(*ResultStatus).Value
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assert.Equal(t, got, val)
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}
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func testWS(t *testing.T, cl *client.WSClient) {
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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.WriteJSON(types.RPCRequest{
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JSONRPC: "2.0",
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ID: "",
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Method: "status",
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Params: params,
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})
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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(Result)
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wire.ReadJSONPtr(result, msg, &err)
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require.Nil(t, err)
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got := (*result).(*ResultStatus).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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//-------------
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func TestURI_TCP(t *testing.T) {
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cl := client.NewURIClient(tcpAddr)
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testURI(t, cl)
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}
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func TestURI_UNIX(t *testing.T) {
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cl := client.NewURIClient(unixAddr)
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testURI(t, cl)
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}
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func TestJSONRPC_TCP(t *testing.T) {
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cl := client.NewJSONRPCClient(tcpAddr)
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testJSONRPC(t, cl)
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}
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func TestJSONRPC_UNIX(t *testing.T) {
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cl := client.NewJSONRPCClient(unixAddr)
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testJSONRPC(t, cl)
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}
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func TestWS_TCP(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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testWS(t, cl)
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}
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func TestWS_UNIX(t *testing.T) {
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cl := client.NewWSClient(unixAddr, websocketEndpoint)
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_, err := cl.Start()
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require.Nil(t, err)
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testWS(t, cl)
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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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params := map[string]interface{}{
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"arg": val,
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}
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var result Result
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_, err := cl.Call("status", params, &result)
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require.Nil(t, err)
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got := result.(*ResultStatus).Value
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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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params := map[string]interface{}{
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"arg": val,
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}
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var result Result
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_, err := cl.Call("status", params, &result)
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require.Nil(t, err)
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got := result.(*ResultStatus).Value
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assert.Equal(t, got, val)
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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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func TestByteSliceViaJSONRPC(t *testing.T) {
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cl := client.NewJSONRPCClient(unixAddr)
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val := randBytes(t)
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params := map[string]interface{}{
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"arg": val,
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}
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var result Result
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_, err := cl.Call("bytes", params, &result)
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require.Nil(t, err)
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got := result.(*ResultBytes).Value
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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(unixAddr, 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.WriteJSON(types.RPCRequest{
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JSONRPC: "2.0",
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ID: "",
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Method: "status_ws",
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Params: params,
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})
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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(Result)
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wire.ReadJSONPtr(result, msg, &err)
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require.Nil(t, err)
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got := (*result).(*ResultStatus).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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