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authorDeterminant <[email protected]>2020-06-30 17:05:50 -0400
committerDeterminant <[email protected]>2020-06-30 17:05:50 -0400
commit7feec02902d52a3abf722613eb9e218e015b723c (patch)
tree3ca683e866cdaba9c06480f825682677826557f3 /rpc/client_test.go
parent3a872747058e9fd32810d0864e19a197529b7d79 (diff)
make mc tx work
Diffstat (limited to 'rpc/client_test.go')
-rw-r--r--rpc/client_test.go569
1 files changed, 0 insertions, 569 deletions
diff --git a/rpc/client_test.go b/rpc/client_test.go
deleted file mode 100644
index 79ea32e..0000000
--- a/rpc/client_test.go
+++ /dev/null
@@ -1,569 +0,0 @@
-// Copyright 2016 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum library is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Lesser General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-package rpc
-
-import (
- "context"
- "fmt"
- "math/rand"
- "net"
- "net/http"
- "net/http/httptest"
- "os"
- "reflect"
- "runtime"
- "sync"
- "testing"
- "time"
-
- "github.com/davecgh/go-spew/spew"
- "github.com/ava-labs/go-ethereum/log"
-)
-
-func TestClientRequest(t *testing.T) {
- server := newTestServer()
- defer server.Stop()
- client := DialInProc(server)
- defer client.Close()
-
- var resp Result
- if err := client.Call(&resp, "test_echo", "hello", 10, &Args{"world"}); err != nil {
- t.Fatal(err)
- }
- if !reflect.DeepEqual(resp, Result{"hello", 10, &Args{"world"}}) {
- t.Errorf("incorrect result %#v", resp)
- }
-}
-
-func TestClientBatchRequest(t *testing.T) {
- server := newTestServer()
- defer server.Stop()
- client := DialInProc(server)
- defer client.Close()
-
- batch := []BatchElem{
- {
- Method: "test_echo",
- Args: []interface{}{"hello", 10, &Args{"world"}},
- Result: new(Result),
- },
- {
- Method: "test_echo",
- Args: []interface{}{"hello2", 11, &Args{"world"}},
- Result: new(Result),
- },
- {
- Method: "no_such_method",
- Args: []interface{}{1, 2, 3},
- Result: new(int),
- },
- }
- if err := client.BatchCall(batch); err != nil {
- t.Fatal(err)
- }
- wantResult := []BatchElem{
- {
- Method: "test_echo",
- Args: []interface{}{"hello", 10, &Args{"world"}},
- Result: &Result{"hello", 10, &Args{"world"}},
- },
- {
- Method: "test_echo",
- Args: []interface{}{"hello2", 11, &Args{"world"}},
- Result: &Result{"hello2", 11, &Args{"world"}},
- },
- {
- Method: "no_such_method",
- Args: []interface{}{1, 2, 3},
- Result: new(int),
- Error: &jsonError{Code: -32601, Message: "the method no_such_method does not exist/is not available"},
- },
- }
- if !reflect.DeepEqual(batch, wantResult) {
- t.Errorf("batch results mismatch:\ngot %swant %s", spew.Sdump(batch), spew.Sdump(wantResult))
- }
-}
-
-func TestClientNotify(t *testing.T) {
- server := newTestServer()
- defer server.Stop()
- client := DialInProc(server)
- defer client.Close()
-
- if err := client.Notify(context.Background(), "test_echo", "hello", 10, &Args{"world"}); err != nil {
- t.Fatal(err)
- }
-}
-
-// func TestClientCancelInproc(t *testing.T) { testClientCancel("inproc", t) }
-func TestClientCancelWebsocket(t *testing.T) { testClientCancel("ws", t) }
-func TestClientCancelHTTP(t *testing.T) { testClientCancel("http", t) }
-func TestClientCancelIPC(t *testing.T) { testClientCancel("ipc", t) }
-
-// This test checks that requests made through CallContext can be canceled by canceling
-// the context.
-func testClientCancel(transport string, t *testing.T) {
- // These tests take a lot of time, run them all at once.
- // You probably want to run with -parallel 1 or comment out
- // the call to t.Parallel if you enable the logging.
- t.Parallel()
-
- server := newTestServer()
- defer server.Stop()
-
- // What we want to achieve is that the context gets canceled
- // at various stages of request processing. The interesting cases
- // are:
- // - cancel during dial
- // - cancel while performing a HTTP request
- // - cancel while waiting for a response
- //
- // To trigger those, the times are chosen such that connections
- // are killed within the deadline for every other call (maxKillTimeout
- // is 2x maxCancelTimeout).
- //
- // Once a connection is dead, there is a fair chance it won't connect
- // successfully because the accept is delayed by 1s.
- maxContextCancelTimeout := 300 * time.Millisecond
- fl := &flakeyListener{
- maxAcceptDelay: 1 * time.Second,
- maxKillTimeout: 600 * time.Millisecond,
- }
-
- var client *Client
- switch transport {
- case "ws", "http":
- c, hs := httpTestClient(server, transport, fl)
- defer hs.Close()
- client = c
- case "ipc":
- c, l := ipcTestClient(server, fl)
- defer l.Close()
- client = c
- default:
- panic("unknown transport: " + transport)
- }
-
- // The actual test starts here.
- var (
- wg sync.WaitGroup
- nreqs = 10
- ncallers = 6
- )
- caller := func(index int) {
- defer wg.Done()
- for i := 0; i < nreqs; i++ {
- var (
- ctx context.Context
- cancel func()
- timeout = time.Duration(rand.Int63n(int64(maxContextCancelTimeout)))
- )
- if index < ncallers/2 {
- // For half of the callers, create a context without deadline
- // and cancel it later.
- ctx, cancel = context.WithCancel(context.Background())
- time.AfterFunc(timeout, cancel)
- } else {
- // For the other half, create a context with a deadline instead. This is
- // different because the context deadline is used to set the socket write
- // deadline.
- ctx, cancel = context.WithTimeout(context.Background(), timeout)
- }
- // Now perform a call with the context.
- // The key thing here is that no call will ever complete successfully.
- sleepTime := maxContextCancelTimeout + 20*time.Millisecond
- err := client.CallContext(ctx, nil, "test_sleep", sleepTime)
- if err != nil {
- log.Debug(fmt.Sprint("got expected error:", err))
- } else {
- t.Errorf("no error for call with %v wait time", timeout)
- }
- cancel()
- }
- }
- wg.Add(ncallers)
- for i := 0; i < ncallers; i++ {
- go caller(i)
- }
- wg.Wait()
-}
-
-func TestClientSubscribeInvalidArg(t *testing.T) {
- server := newTestServer()
- defer server.Stop()
- client := DialInProc(server)
- defer client.Close()
-
- check := func(shouldPanic bool, arg interface{}) {
- defer func() {
- err := recover()
- if shouldPanic && err == nil {
- t.Errorf("EthSubscribe should've panicked for %#v", arg)
- }
- if !shouldPanic && err != nil {
- t.Errorf("EthSubscribe shouldn't have panicked for %#v", arg)
- buf := make([]byte, 1024*1024)
- buf = buf[:runtime.Stack(buf, false)]
- t.Error(err)
- t.Error(string(buf))
- }
- }()
- client.EthSubscribe(context.Background(), arg, "foo_bar")
- }
- check(true, nil)
- check(true, 1)
- check(true, (chan int)(nil))
- check(true, make(<-chan int))
- check(false, make(chan int))
- check(false, make(chan<- int))
-}
-
-func TestClientSubscribe(t *testing.T) {
- server := newTestServer()
- defer server.Stop()
- client := DialInProc(server)
- defer client.Close()
-
- nc := make(chan int)
- count := 10
- sub, err := client.Subscribe(context.Background(), "nftest", nc, "someSubscription", count, 0)
- if err != nil {
- t.Fatal("can't subscribe:", err)
- }
- for i := 0; i < count; i++ {
- if val := <-nc; val != i {
- t.Fatalf("value mismatch: got %d, want %d", val, i)
- }
- }
-
- sub.Unsubscribe()
- select {
- case v := <-nc:
- t.Fatal("received value after unsubscribe:", v)
- case err := <-sub.Err():
- if err != nil {
- t.Fatalf("Err returned a non-nil error after explicit unsubscribe: %q", err)
- }
- case <-time.After(1 * time.Second):
- t.Fatalf("subscription not closed within 1s after unsubscribe")
- }
-}
-
-// In this test, the connection drops while Subscribe is waiting for a response.
-func TestClientSubscribeClose(t *testing.T) {
- server := newTestServer()
- service := &notificationTestService{
- gotHangSubscriptionReq: make(chan struct{}),
- unblockHangSubscription: make(chan struct{}),
- }
- if err := server.RegisterName("nftest2", service); err != nil {
- t.Fatal(err)
- }
-
- defer server.Stop()
- client := DialInProc(server)
- defer client.Close()
-
- var (
- nc = make(chan int)
- errc = make(chan error)
- sub *ClientSubscription
- err error
- )
- go func() {
- sub, err = client.Subscribe(context.Background(), "nftest2", nc, "hangSubscription", 999)
- errc <- err
- }()
-
- <-service.gotHangSubscriptionReq
- client.Close()
- service.unblockHangSubscription <- struct{}{}
-
- select {
- case err := <-errc:
- if err == nil {
- t.Errorf("Subscribe returned nil error after Close")
- }
- if sub != nil {
- t.Error("Subscribe returned non-nil subscription after Close")
- }
- case <-time.After(1 * time.Second):
- t.Fatalf("Subscribe did not return within 1s after Close")
- }
-}
-
-// This test reproduces https://github.com/ethereum/go-ethereum/issues/17837 where the
-// client hangs during shutdown when Unsubscribe races with Client.Close.
-func TestClientCloseUnsubscribeRace(t *testing.T) {
- server := newTestServer()
- defer server.Stop()
-
- for i := 0; i < 20; i++ {
- client := DialInProc(server)
- nc := make(chan int)
- sub, err := client.Subscribe(context.Background(), "nftest", nc, "someSubscription", 3, 1)
- if err != nil {
- t.Fatal(err)
- }
- go client.Close()
- go sub.Unsubscribe()
- select {
- case <-sub.Err():
- case <-time.After(5 * time.Second):
- t.Fatal("subscription not closed within timeout")
- }
- }
-}
-
-// This test checks that Client doesn't lock up when a single subscriber
-// doesn't read subscription events.
-func TestClientNotificationStorm(t *testing.T) {
- server := newTestServer()
- defer server.Stop()
-
- doTest := func(count int, wantError bool) {
- client := DialInProc(server)
- defer client.Close()
- ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
- defer cancel()
-
- // Subscribe on the server. It will start sending many notifications
- // very quickly.
- nc := make(chan int)
- sub, err := client.Subscribe(ctx, "nftest", nc, "someSubscription", count, 0)
- if err != nil {
- t.Fatal("can't subscribe:", err)
- }
- defer sub.Unsubscribe()
-
- // Process each notification, try to run a call in between each of them.
- for i := 0; i < count; i++ {
- select {
- case val := <-nc:
- if val != i {
- t.Fatalf("(%d/%d) unexpected value %d", i, count, val)
- }
- case err := <-sub.Err():
- if wantError && err != ErrSubscriptionQueueOverflow {
- t.Fatalf("(%d/%d) got error %q, want %q", i, count, err, ErrSubscriptionQueueOverflow)
- } else if !wantError {
- t.Fatalf("(%d/%d) got unexpected error %q", i, count, err)
- }
- return
- }
- var r int
- err := client.CallContext(ctx, &r, "nftest_echo", i)
- if err != nil {
- if !wantError {
- t.Fatalf("(%d/%d) call error: %v", i, count, err)
- }
- return
- }
- }
- if wantError {
- t.Fatalf("didn't get expected error")
- }
- }
-
- doTest(8000, false)
- doTest(21000, true)
-}
-
-func TestClientHTTP(t *testing.T) {
- server := newTestServer()
- defer server.Stop()
-
- client, hs := httpTestClient(server, "http", nil)
- defer hs.Close()
- defer client.Close()
-
- // Launch concurrent requests.
- var (
- results = make([]Result, 100)
- errc = make(chan error)
- wantResult = Result{"a", 1, new(Args)}
- )
- defer client.Close()
- for i := range results {
- i := i
- go func() {
- errc <- client.Call(&results[i], "test_echo",
- wantResult.String, wantResult.Int, wantResult.Args)
- }()
- }
-
- // Wait for all of them to complete.
- timeout := time.NewTimer(5 * time.Second)
- defer timeout.Stop()
- for i := range results {
- select {
- case err := <-errc:
- if err != nil {
- t.Fatal(err)
- }
- case <-timeout.C:
- t.Fatalf("timeout (got %d/%d) results)", i+1, len(results))
- }
- }
-
- // Check results.
- for i := range results {
- if !reflect.DeepEqual(results[i], wantResult) {
- t.Errorf("result %d mismatch: got %#v, want %#v", i, results[i], wantResult)
- }
- }
-}
-
-func TestClientReconnect(t *testing.T) {
- startServer := func(addr string) (*Server, net.Listener) {
- srv := newTestServer()
- l, err := net.Listen("tcp", addr)
- if err != nil {
- t.Fatal("can't listen:", err)
- }
- go http.Serve(l, srv.WebsocketHandler([]string{"*"}))
- return srv, l
- }
-
- ctx, cancel := context.WithTimeout(context.Background(), 12*time.Second)
- defer cancel()
-
- // Start a server and corresponding client.
- s1, l1 := startServer("127.0.0.1:0")
- client, err := DialContext(ctx, "ws://"+l1.Addr().String())
- if err != nil {
- t.Fatal("can't dial", err)
- }
-
- // Perform a call. This should work because the server is up.
- var resp Result
- if err := client.CallContext(ctx, &resp, "test_echo", "", 1, nil); err != nil {
- t.Fatal(err)
- }
-
- // Shut down the server and allow for some cool down time so we can listen on the same
- // address again.
- l1.Close()
- s1.Stop()
- time.Sleep(2 * time.Second)
-
- // Try calling again. It shouldn't work.
- if err := client.CallContext(ctx, &resp, "test_echo", "", 2, nil); err == nil {
- t.Error("successful call while the server is down")
- t.Logf("resp: %#v", resp)
- }
-
- // Start it up again and call again. The connection should be reestablished.
- // We spawn multiple calls here to check whether this hangs somehow.
- s2, l2 := startServer(l1.Addr().String())
- defer l2.Close()
- defer s2.Stop()
-
- start := make(chan struct{})
- errors := make(chan error, 20)
- for i := 0; i < cap(errors); i++ {
- go func() {
- <-start
- var resp Result
- errors <- client.CallContext(ctx, &resp, "test_echo", "", 3, nil)
- }()
- }
- close(start)
- errcount := 0
- for i := 0; i < cap(errors); i++ {
- if err = <-errors; err != nil {
- errcount++
- }
- }
- t.Logf("%d errors, last error: %v", errcount, err)
- if errcount > 1 {
- t.Errorf("expected one error after disconnect, got %d", errcount)
- }
-}
-
-func httpTestClient(srv *Server, transport string, fl *flakeyListener) (*Client, *httptest.Server) {
- // Create the HTTP server.
- var hs *httptest.Server
- switch transport {
- case "ws":
- hs = httptest.NewUnstartedServer(srv.WebsocketHandler([]string{"*"}))
- case "http":
- hs = httptest.NewUnstartedServer(srv)
- default:
- panic("unknown HTTP transport: " + transport)
- }
- // Wrap the listener if required.
- if fl != nil {
- fl.Listener = hs.Listener
- hs.Listener = fl
- }
- // Connect the client.
- hs.Start()
- client, err := Dial(transport + "://" + hs.Listener.Addr().String())
- if err != nil {
- panic(err)
- }
- return client, hs
-}
-
-func ipcTestClient(srv *Server, fl *flakeyListener) (*Client, net.Listener) {
- // Listen on a random endpoint.
- endpoint := fmt.Sprintf("go-ethereum-test-ipc-%d-%d", os.Getpid(), rand.Int63())
- if runtime.GOOS == "windows" {
- endpoint = `\\.\pipe\` + endpoint
- } else {
- endpoint = os.TempDir() + "/" + endpoint
- }
- l, err := ipcListen(endpoint)
- if err != nil {
- panic(err)
- }
- // Connect the listener to the server.
- if fl != nil {
- fl.Listener = l
- l = fl
- }
- go srv.ServeListener(l)
- // Connect the client.
- client, err := Dial(endpoint)
- if err != nil {
- panic(err)
- }
- return client, l
-}
-
-// flakeyListener kills accepted connections after a random timeout.
-type flakeyListener struct {
- net.Listener
- maxKillTimeout time.Duration
- maxAcceptDelay time.Duration
-}
-
-func (l *flakeyListener) Accept() (net.Conn, error) {
- delay := time.Duration(rand.Int63n(int64(l.maxAcceptDelay)))
- time.Sleep(delay)
-
- c, err := l.Listener.Accept()
- if err == nil {
- timeout := time.Duration(rand.Int63n(int64(l.maxKillTimeout)))
- time.AfterFunc(timeout, func() {
- log.Debug(fmt.Sprintf("killing conn %v after %v", c.LocalAddr(), timeout))
- c.Close()
- })
- }
- return c, err
-}