laconicd/tests/rpc/ws_test.go
2022-10-10 16:08:33 +05:30

175 lines
4.5 KiB
Go

package rpc
import (
"encoding/json"
"fmt"
"github.com/gorilla/websocket"
"github.com/stretchr/testify/require"
"net/url"
"os"
"strings"
"testing"
"time"
)
var (
HOST_WS = os.Getenv("HOST_WS")
wsUrl string
)
func init() {
if HOST_WS == "" {
HOST_WS = "localhost:8542"
}
u := url.URL{Scheme: "ws", Host: HOST_WS, Path: ""}
wsUrl = u.String()
}
func TestWsSingleRequest(t *testing.T) {
t.Log("test simple rpc request net_version with Websocket")
wc, _, err := websocket.DefaultDialer.Dial(wsUrl, nil)
require.NoError(t, err)
defer wc.Close()
wsWriteMessage(t, wc, `{"jsonrpc":"2.0","method":"net_version","params":[],"id":1}`)
time.Sleep(1 * time.Second)
mb := readMessage(t, wc)
msg := jsonUnmarshal(t, mb)
result, ok := msg["result"].(string)
require.True(t, ok)
require.Equal(t, "9000", result)
}
func TestWsBatchRequest(t *testing.T) {
t.Log("test batch request with Websocket")
wc, _, err := websocket.DefaultDialer.Dial(wsUrl, nil)
require.NoError(t, err)
defer wc.Close()
wsWriteMessage(t, wc, `[{"jsonrpc":"2.0","method":"net_version","params":[],"id":1},{"jsonrpc":"2.0","method":"eth_protocolVersion","params":[],"id":2}]`)
time.Sleep(1 * time.Second)
mb := readMessage(t, wc)
var msg []map[string]interface{}
err = json.Unmarshal(mb, &msg)
require.NoError(t, err)
require.Equal(t, 2, len(msg))
// net_version
resNetVersion := msg[0]
result, ok := resNetVersion["result"].(string)
require.True(t, ok)
require.Equal(t, "9000", result)
id, ok := resNetVersion["id"].(float64)
require.True(t, ok)
require.Equal(t, 1, int(id))
// eth_protocolVersion
resEthProtocolVersion := msg[1]
result, ok = resEthProtocolVersion["result"].(string)
require.True(t, ok)
require.Equal(t, "0x41", result)
id, ok = resEthProtocolVersion["id"].(float64)
require.True(t, ok)
require.Equal(t, 2, int(id))
}
func TestWsEth_subscribe_newHeads(t *testing.T) {
t.Log("test eth_subscribe newHeads with Websocket")
wc, _, err := websocket.DefaultDialer.Dial(wsUrl, nil)
require.NoError(t, err)
defer wc.Close()
wsWriteMessage(t, wc, `{"id":1,"method":"eth_subscribe","params":["newHeads",{}]}`)
time.Sleep(1 * time.Second)
mb := readMessage(t, wc)
msg := jsonUnmarshal(t, mb)
subscribeId, ok := msg["result"].(string)
require.True(t, ok)
require.True(t, strings.HasPrefix(subscribeId, "0x"))
time.Sleep(3 * time.Second)
mb = readMessage(t, wc)
msg = jsonUnmarshal(t, mb)
method, ok := msg["method"].(string)
require.Equal(t, "eth_subscription", method)
// id should not exist with eth_subscription event
_, ok = msg["id"].(float64)
require.False(t, ok)
wsUnsubscribe(t, wc, subscribeId) // eth_unsubscribe
}
func TestWsEth_subscribe_log(t *testing.T) {
t.Log("test eth_subscribe log with websocket")
wc, _, err := websocket.DefaultDialer.Dial(wsUrl, nil)
require.NoError(t, err)
defer wc.Close()
wsWriteMessage(t, wc, fmt.Sprintf(`{"jsonrpc":"2.0","id":1,"method":"eth_subscribe","params":["logs",{"topics":["%s", "%s"]}]}`, helloTopic, worldTopic))
time.Sleep(1 * time.Second)
mb := readMessage(t, wc)
msg := jsonUnmarshal(t, mb)
subscribeId, ok := msg["result"].(string)
require.True(t, ok)
require.True(t, strings.HasPrefix(subscribeId, "0x"))
// do something here to receive subscription messages
deployTestContractWithFunction(t)
time.Sleep(3 * time.Second)
mb = readMessage(t, wc)
msg = jsonUnmarshal(t, mb)
method, ok := msg["method"].(string)
require.Equal(t, "eth_subscription", method)
// id should not exist with eth_subscription event
_, ok = msg["id"].(float64)
require.False(t, ok)
wsUnsubscribe(t, wc, subscribeId) // eth_unsubscribe
}
func wsWriteMessage(t *testing.T, wc *websocket.Conn, jsonStr string) {
t.Logf("send: %s", jsonStr)
err := wc.WriteMessage(websocket.TextMessage, []byte(jsonStr))
require.NoError(t, err)
}
func wsUnsubscribe(t *testing.T, wc *websocket.Conn, subscribeId string) {
t.Logf("eth_unsubscribe %s", subscribeId)
wsWriteMessage(t, wc, fmt.Sprintf(`{"id":1,"method":"eth_unsubscribe","params":["%s"]}`, subscribeId))
time.Sleep(1 * time.Second)
mb := readMessage(t, wc)
msg := jsonUnmarshal(t, mb)
result, ok := msg["result"].(bool)
require.True(t, ok)
require.True(t, result)
}
func readMessage(t *testing.T, wc *websocket.Conn) []byte {
_, mb, err := wc.ReadMessage()
require.NoError(t, err)
t.Logf("recv: %s", mb)
return mb
}
func jsonUnmarshal(t *testing.T, mb []byte) map[string]interface{} {
var msg map[string]interface{}
err := json.Unmarshal(mb, &msg)
require.NoError(t, err)
return msg
}