package client import ( "context" "net/http" "net/http/httptest" "strings" "testing" "time" "github.com/gorilla/websocket" "github.com/nspcc-dev/neo-go/pkg/core/transaction" "github.com/nspcc-dev/neo-go/pkg/rpc/request" "github.com/nspcc-dev/neo-go/pkg/util" "github.com/stretchr/testify/require" ) func TestWSClientClose(t *testing.T) { srv := initTestServer(t, "") defer srv.Close() wsc, err := NewWS(context.TODO(), httpURLtoWS(srv.URL), Options{}) require.NoError(t, err) wsc.Close() } func TestWSClientSubscription(t *testing.T) { var cases = map[string]func(*WSClient) (string, error){ "blocks": (*WSClient).SubscribeForNewBlocks, "transactions": func(wsc *WSClient) (string, error) { return wsc.SubscribeForNewTransactions(nil) }, "notifications": func(wsc *WSClient) (string, error) { return wsc.SubscribeForExecutionNotifications(nil) }, "executions": func(wsc *WSClient) (string, error) { return wsc.SubscribeForTransactionExecutions(nil) }, } t.Run("good", func(t *testing.T) { for name, f := range cases { t.Run(name, func(t *testing.T) { srv := initTestServer(t, `{"jsonrpc": "2.0", "id": 1, "result": "55aaff00"}`) defer srv.Close() wsc, err := NewWS(context.TODO(), httpURLtoWS(srv.URL), Options{}) require.NoError(t, err) id, err := f(wsc) require.NoError(t, err) require.Equal(t, "55aaff00", id) }) } }) t.Run("bad", func(t *testing.T) { for name, f := range cases { t.Run(name, func(t *testing.T) { srv := initTestServer(t, `{"jsonrpc": "2.0", "id": 1, "error":{"code":-32602,"message":"Invalid Params"}}`) defer srv.Close() wsc, err := NewWS(context.TODO(), httpURLtoWS(srv.URL), Options{}) require.NoError(t, err) _, err = f(wsc) require.Error(t, err) }) } }) } func TestWSClientUnsubscription(t *testing.T) { type responseCheck struct { response string code func(*testing.T, *WSClient) } var cases = map[string]responseCheck{ "good": {`{"jsonrpc": "2.0", "id": 1, "result": true}`, func(t *testing.T, wsc *WSClient) { // We can't really subscribe using this stub server, so set up wsc internals. wsc.subscriptions["0"] = true err := wsc.Unsubscribe("0") require.NoError(t, err) }}, "all": {`{"jsonrpc": "2.0", "id": 1, "result": true}`, func(t *testing.T, wsc *WSClient) { // We can't really subscribe using this stub server, so set up wsc internals. wsc.subscriptions["0"] = true err := wsc.UnsubscribeAll() require.NoError(t, err) require.Equal(t, 0, len(wsc.subscriptions)) }}, "not subscribed": {`{"jsonrpc": "2.0", "id": 1, "result": true}`, func(t *testing.T, wsc *WSClient) { err := wsc.Unsubscribe("0") require.Error(t, err) }}, "error returned": {`{"jsonrpc": "2.0", "id": 1, "error":{"code":-32602,"message":"Invalid Params"}}`, func(t *testing.T, wsc *WSClient) { // We can't really subscribe using this stub server, so set up wsc internals. wsc.subscriptions["0"] = true err := wsc.Unsubscribe("0") require.Error(t, err) }}, "false returned": {`{"jsonrpc": "2.0", "id": 1, "result": false}`, func(t *testing.T, wsc *WSClient) { // We can't really subscribe using this stub server, so set up wsc internals. wsc.subscriptions["0"] = true err := wsc.Unsubscribe("0") require.Error(t, err) }}, } for name, rc := range cases { t.Run(name, func(t *testing.T) { srv := initTestServer(t, rc.response) defer srv.Close() wsc, err := NewWS(context.TODO(), httpURLtoWS(srv.URL), Options{}) require.NoError(t, err) rc.code(t, wsc) }) } } func TestWSClientEvents(t *testing.T) { var ok bool // Events from RPC server test chain. var events = []string{ `{"jsonrpc":"2.0","method":"transaction_executed","params":[{"txid":"0x93670859cc8a42f6ea994869c944879678d33d7501d388f5a446a8c7de147df7","executions":[{"trigger":"Application","contract":"0x0000000000000000000000000000000000000000","vmstate":"HALT","gas_consumed":"1.048","stack":[{"type":"Integer","value":"1"}],"notifications":[{"contract":"0xc2789e5ab9bab828743833965b1df0d5fbcc206f","state":{"type":"Array","value":[{"type":"ByteArray","value":"636f6e74726163742063616c6c"},{"type":"ByteArray","value":"507574"},{"type":"Array","value":[{"type":"ByteArray","value":"746573746b6579"},{"type":"ByteArray","value":"7465737476616c7565"}]}]}}]}]}]}`, `{"jsonrpc":"2.0","method":"notification_from_execution","params":[{"contract":"0xc2789e5ab9bab828743833965b1df0d5fbcc206f","state":{"type":"Array","value":[{"type":"ByteArray","value":"636f6e74726163742063616c6c"},{"type":"ByteArray","value":"507574"},{"type":"Array","value":[{"type":"ByteArray","value":"746573746b6579"},{"type":"ByteArray","value":"7465737476616c7565"}]}]}}]}`, `{"jsonrpc":"2.0","method":"transaction_added","params":[{"txid":"0x93670859cc8a42f6ea994869c944879678d33d7501d388f5a446a8c7de147df7","size":60,"type":"InvocationTransaction","version":1,"attributes":[],"vin":[],"vout":[],"scripts":[],"script":"097465737476616c756507746573746b657952c103507574676f20ccfbd5f01d5b9633387428b8bab95a9e78c2"}]}`, `{"jsonrpc":"2.0","method":"block_added","params":[{"hash":"0x48fba8aebf88278818a3dc0caecb230873d1d4ce1ea8bf473634317f94a609e5","version":0,"previousblockhash":"0x33f3e0e24542b2ec3b6420e6881c31f6460a39a4e733d88f7557cbcc3b5ed560","merkleroot":"0x9d922c5cfd4c8cd1da7a6b2265061998dc438bd0dea7145192e2858155e6c57a","time":1586154525,"index":205,"nonce":"0000000000000457","nextconsensus":"AZ81H31DMWzbSnFDLFkzh9vHwaDLayV7fU","script":{"invocation":"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","verification":"532102103a7f7dd016558597f7960d27c516a4394fd968b9e65155eb4b013e4040406e2102a7bc55fe8684e0119768d104ba30795bdcc86619e864add26156723ed185cd622102b3622bf4017bdfe317c58aed5f4c753f206b7db896046fa7d774bbc4bf7f8dc22103d90c07df63e690ce77912e10ab51acc944b66860237b608c4f8f8309e71ee69954ae"},"tx":[{"txid":"0xf9adfde059810f37b3d0686d67f6b29034e0c669537df7e59b40c14a0508b9ed","size":10,"type":"MinerTransaction","version":0,"attributes":[],"vin":[],"vout":[],"scripts":[]},{"txid":"0x93670859cc8a42f6ea994869c944879678d33d7501d388f5a446a8c7de147df7","size":60,"type":"InvocationTransaction","version":1,"attributes":[],"vin":[],"vout":[],"scripts":[],"script":"097465737476616c756507746573746b657952c103507574676f20ccfbd5f01d5b9633387428b8bab95a9e78c2"}]}]}`, `{"jsonrpc":"2.0","method":"event_missed","params":[]}`, } srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) { if req.URL.Path == "/ws" && req.Method == "GET" { var upgrader = websocket.Upgrader{} ws, err := upgrader.Upgrade(w, req, nil) require.NoError(t, err) for _, event := range events { ws.SetWriteDeadline(time.Now().Add(2 * time.Second)) err = ws.WriteMessage(1, []byte(event)) if err != nil { break } } ws.Close() return } })) wsc, err := NewWS(context.TODO(), httpURLtoWS(srv.URL), Options{}) require.NoError(t, err) for range events { select { case _, ok = <-wsc.Notifications: case <-time.After(time.Second): t.Fatal("timeout waiting for event") } require.Equal(t, true, ok) } select { case _, ok = <-wsc.Notifications: case <-time.After(time.Second): t.Fatal("timeout waiting for event") } // Connection closed by server. require.Equal(t, false, ok) } func TestWSExecutionVMStateCheck(t *testing.T) { // Will answer successfully if request slips through. srv := initTestServer(t, `{"jsonrpc": "2.0", "id": 1, "result": "55aaff00"}`) defer srv.Close() wsc, err := NewWS(context.TODO(), httpURLtoWS(srv.URL), Options{}) require.NoError(t, err) filter := "NONE" _, err = wsc.SubscribeForTransactionExecutions(&filter) require.Error(t, err) wsc.Close() } func TestWSFilteredSubscriptions(t *testing.T) { var cases = []struct { name string clientCode func(*testing.T, *WSClient) serverCode func(*testing.T, *request.Params) }{ {"transactions", func(t *testing.T, wsc *WSClient) { tt := transaction.InvocationType _, err := wsc.SubscribeForNewTransactions(&tt) require.NoError(t, err) }, func(t *testing.T, p *request.Params) { param := p.Value(1) require.NotNil(t, param) require.Equal(t, request.TxFilterT, param.Type) filt, ok := param.Value.(request.TxFilter) require.Equal(t, true, ok) require.Equal(t, transaction.InvocationType, filt.Type) }, }, {"notifications", func(t *testing.T, wsc *WSClient) { contract := util.Uint160{1, 2, 3, 4, 5} _, err := wsc.SubscribeForExecutionNotifications(&contract) require.NoError(t, err) }, func(t *testing.T, p *request.Params) { param := p.Value(1) require.NotNil(t, param) require.Equal(t, request.NotificationFilterT, param.Type) filt, ok := param.Value.(request.NotificationFilter) require.Equal(t, true, ok) require.Equal(t, util.Uint160{1, 2, 3, 4, 5}, filt.Contract) }, }, {"executions", func(t *testing.T, wsc *WSClient) { state := "FAULT" _, err := wsc.SubscribeForTransactionExecutions(&state) require.NoError(t, err) }, func(t *testing.T, p *request.Params) { param := p.Value(1) require.NotNil(t, param) require.Equal(t, request.ExecutionFilterT, param.Type) filt, ok := param.Value.(request.ExecutionFilter) require.Equal(t, true, ok) require.Equal(t, "FAULT", filt.State) }, }, } for _, c := range cases { t.Run(c.name, func(t *testing.T) { srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) { if req.URL.Path == "/ws" && req.Method == "GET" { var upgrader = websocket.Upgrader{} ws, err := upgrader.Upgrade(w, req, nil) require.NoError(t, err) ws.SetReadDeadline(time.Now().Add(2 * time.Second)) req := request.In{} err = ws.ReadJSON(&req) require.NoError(t, err) params, err := req.Params() require.NoError(t, err) c.serverCode(t, params) ws.SetWriteDeadline(time.Now().Add(2 * time.Second)) err = ws.WriteMessage(1, []byte(`{"jsonrpc": "2.0", "id": 1, "result": "0"}`)) require.NoError(t, err) ws.Close() } })) defer srv.Close() wsc, err := NewWS(context.TODO(), httpURLtoWS(srv.URL), Options{}) require.NoError(t, err) c.clientCode(t, wsc) wsc.Close() }) } } func TestNewWS(t *testing.T) { srv := initTestServer(t, "") defer srv.Close() t.Run("good", func(t *testing.T) { _, err := NewWS(context.TODO(), httpURLtoWS(srv.URL), Options{}) require.NoError(t, err) }) t.Run("bad URL", func(t *testing.T) { _, err := NewWS(context.TODO(), strings.Trim(srv.URL, "http://"), Options{}) require.Error(t, err) }) }