171 lines
3.1 KiB
Go
171 lines
3.1 KiB
Go
// Copyright 2020 The go-zeromq Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package zmq4_test
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import (
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"context"
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"errors"
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"sync"
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"testing"
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"git.gammaspectra.live/P2Pool/zmq4"
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)
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func TestIssue99(t *testing.T) {
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var (
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wg sync.WaitGroup
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outMsg zmq4.Msg
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inMsg zmq4.Msg
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ok = make(chan int)
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)
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ep, err := EndPoint("tcp")
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if err != nil {
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t.Fatalf("could not find endpoint: %+v", err)
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}
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requester := func() {
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defer wg.Done()
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defer close(ok)
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req := zmq4.NewReq(context.Background())
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defer req.Close()
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err := req.Dial(ep)
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if err != nil {
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t.Errorf("could not dial: %+v", err)
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return
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}
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// Test message w/ 3 frames
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outMsg = zmq4.NewMsgFromString([]string{"ZERO", "Hello!", "World!"})
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err = req.Send(outMsg)
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if err != nil {
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t.Errorf("failed to send: %+v", err)
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return
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}
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inMsg, err = req.Recv()
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if err != nil {
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t.Errorf("failed to recv: %+v", err)
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return
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}
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}
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responder := func() {
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defer wg.Done()
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rep := zmq4.NewRep(context.Background())
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defer rep.Close()
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err := rep.Listen(ep)
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if err != nil {
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t.Errorf("could not dial: %+v", err)
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return
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}
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// Wait for next request from client
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msg, err := rep.Recv()
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if err != nil {
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t.Errorf("could not recv request: %+v", err)
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return
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}
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// Send reply back to client
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err = rep.Send(msg)
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if err != nil {
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t.Errorf("could not send reply: %+v", err)
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return
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}
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<-ok
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}
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wg.Add(2)
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go requester()
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go responder()
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wg.Wait()
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if want, got := len(outMsg.Frames), len(inMsg.Frames); want != got {
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t.Fatalf("message length mismatch: got=%d, want=%d", got, want)
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}
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}
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func TestCancellation(t *testing.T) {
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// if the context is cancelled during a rep.Send both the requester and the responder should get an error
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var wg sync.WaitGroup
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ep, err := EndPoint("tcp")
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if err != nil {
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t.Fatalf("could not find endpoint: %+v", err)
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}
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responderStarted := make(chan bool)
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requester := func() {
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defer wg.Done()
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<-responderStarted
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req := zmq4.NewReq(context.Background())
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defer req.Close()
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err := req.Dial(ep)
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if err != nil {
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t.Errorf("could not dial: %+v", err)
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return
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}
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err = req.Send(zmq4.NewMsgString("ping"))
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if err != nil {
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t.Errorf("could not send: %+v", err)
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return
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}
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msg, err := req.Recv()
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if err == nil {
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t.Errorf("requester should have gotten an error, but got: %+v", msg)
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}
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}
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responder := func() {
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defer wg.Done()
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repCtx, cancel := context.WithCancel(context.Background())
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defer cancel()
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rep := zmq4.NewRep(repCtx)
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defer rep.Close()
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err := rep.Listen(ep)
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if err != nil {
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t.Errorf("could not dial: %+v", err)
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return
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}
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responderStarted <- true
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_, err = rep.Recv()
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if err != nil {
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t.Errorf("could not recv: %+v", err)
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return
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}
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// cancel the context right before sending the response
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cancel()
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err = rep.Send(zmq4.NewMsgString("pong"))
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if !errors.Is(err, context.Canceled) {
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t.Errorf("context should be cancelled: %+v", err)
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}
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}
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wg.Add(2)
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go requester()
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go responder()
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wg.Wait()
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}
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