path: root/rpc/json_test.go

package rpc

import (
    "bufio"
    "bytes"
    "reflect"
    "testing"
)

type RWC struct {
    *bufio.ReadWriter
}

func (rwc *RWC) Close() error {
    return nil
}

func TestJSONRequestParsing(t *testing.T) {
    server := NewServer()
    service := new(Service)

    if err := server.RegisterName("calc", service); err != nil {
        t.Fatalf("%v", err)
    }

    req := bytes.NewBufferString(`{"id": 1234, "jsonrpc": "2.0", "method": "calc_add", "params": [11, 22]}`)
    var str string
    reply := bytes.NewBufferString(str)
    rw := &RWC{bufio.NewReadWriter(bufio.NewReader(req), bufio.NewWriter(reply))}

    codec := NewJSONCodec(rw)

    requests, batch, err := codec.ReadRequestHeaders()
    if err != nil {
        t.Fatalf("%v", err)
    }

    if batch {
        t.Fatalf("Request isn't a batch")
    }

    if len(requests) != 1 {
        t.Fatalf("Expected 1 request but got %d requests - %v", len(requests), requests)
    }

    if requests[0].service != "calc" {
        t.Fatalf("Expected service 'calc' but got '%s'", requests[0].service)
    }

    if requests[0].method != "add" {
        t.Fatalf("Expected method 'Add' but got '%s'", requests[0].method)
    }

    if requests[0].id != 1234 {
        t.Fatalf("Expected id 1234 but got %d", requests[0].id)
    }

    var arg int
    args := []reflect.Type{reflect.TypeOf(arg), reflect.TypeOf(arg)}

    v, err := codec.ParseRequestArguments(args, requests[0].params)
    if err != nil {
        t.Fatalf("%v", err)
    }

    if len(v) != 2 {
        t.Fatalf("Expected 2 argument values, got %d", len(v))
    }

    if v[0].Int() != 11 || v[1].Int() != 22 {
        t.Fatalf("expected %d == 11 && %d == 22", v[0].Int(), v[1].Int())
    }
}