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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,152 @@ | ||
| /* | ||
| * Copyright (c) 2024 Contributors to the Eclipse Foundation | ||
| * | ||
| * All rights reserved. This program and the accompanying materials | ||
| * are made available under the terms of the Eclipse Public License v2.0 | ||
| * and Eclipse Distribution License v1.0 which accompany this distribution. | ||
| * | ||
| * The Eclipse Public License is available at | ||
| * https://www.eclipse.org/legal/epl-2.0/ | ||
| * and the Eclipse Distribution License is available at | ||
| * http://www.eclipse.org/org/documents/edl-v10.php. | ||
| * | ||
| * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause | ||
| */ | ||
|
|
||
| package paho | ||
|
|
||
| import ( | ||
| "net" | ||
| "testing" | ||
| "time" | ||
|
|
||
| "github.com/eclipse/paho.golang/packets" | ||
| paholog "github.com/eclipse/paho.golang/paho/log" | ||
| "github.com/stretchr/testify/assert" | ||
| "github.com/stretchr/testify/require" | ||
| ) | ||
|
|
||
| func TestDefaultPingerTimeout(t *testing.T) { | ||
| fakeServerConn, fakeClientConn := net.Pipe() | ||
|
|
||
| go func() { | ||
| // keep reading from fakeServerConn and throw away the data | ||
| buf := make([]byte, 1024) | ||
| for { | ||
| _, err := fakeServerConn.Read(buf) | ||
| if err != nil { | ||
| return | ||
| } | ||
| } | ||
| }() | ||
| defer fakeServerConn.Close() | ||
|
|
||
| pinger := NewDefaultPinger() | ||
| pinger.SetDebug(paholog.NewTestLogger(t, "DefaultPinger:")) | ||
|
|
||
| pingResult := make(chan error, 1) | ||
| go func() { | ||
| pingResult <- pinger.Run(fakeClientConn, 1) | ||
| }() | ||
| defer pinger.Stop() | ||
|
|
||
| select { | ||
| case err := <-pingResult: | ||
| require.NotNil(t, err) | ||
| assert.EqualError(t, err, "PINGRESP timed out") | ||
| case <-time.After(10 * time.Second): | ||
| t.Error("expected DefaultPinger to detect timeout and return error") | ||
| } | ||
| } | ||
|
|
||
| func TestDefaultPingerSuccess(t *testing.T) { | ||
| fakeClientConn, fakeServerConn := net.Pipe() | ||
|
|
||
| pinger := NewDefaultPinger() | ||
| pinger.SetDebug(paholog.NewTestLogger(t, "DefaultPinger:")) | ||
|
|
||
| pingResult := make(chan error, 1) | ||
| go func() { | ||
| pingResult <- pinger.Run(fakeClientConn, 3) | ||
| }() | ||
| defer pinger.Stop() | ||
|
|
||
| go func() { | ||
| // keep reading from fakeServerConn and call PingResp() when a PINGREQ is received | ||
| for { | ||
| recv, err := packets.ReadPacket(fakeServerConn) | ||
| if err != nil { | ||
| return | ||
| } | ||
| if recv.Type == packets.PINGREQ { | ||
| pinger.PingResp() | ||
| } | ||
| } | ||
| }() | ||
| defer fakeServerConn.Close() | ||
|
|
||
| select { | ||
| case err := <-pingResult: | ||
| t.Errorf("expected DefaultPinger to not return error, got %v", err) | ||
| case <-time.After(10 * time.Second): | ||
| // PASS | ||
| } | ||
| } | ||
|
|
||
| func TestDefaultPingerPacketSent(t *testing.T) { | ||
| fakeClientConn, fakeServerConn := net.Pipe() | ||
|
|
||
| pinger := NewDefaultPinger() | ||
| pinger.SetDebug(paholog.NewTestLogger(t, "DefaultPinger:")) | ||
|
|
||
| pingResult := make(chan error, 1) | ||
| go func() { | ||
| pingResult <- pinger.Run(fakeClientConn, 3) | ||
| }() | ||
| defer pinger.Stop() | ||
|
|
||
| // keep calling PacketSent() in a goroutine to check that the Pinger avoids sending PINGREQs when not needed | ||
| stop := make(chan struct{}) | ||
| go func() { | ||
| for { | ||
| select { | ||
| case <-stop: | ||
| return | ||
| default: | ||
| } | ||
| // keep calling PacketSent() | ||
| pinger.PacketSent() | ||
| } | ||
| }() | ||
| defer close(stop) | ||
|
|
||
| // keep reading from fakeServerConn and call PingResp() when a PINGREQ is received | ||
| // if more than one PINGREQ is received, the test will fail | ||
| count := 0 | ||
| tooManyPingreqs := make(chan struct{}) | ||
| go func() { | ||
| for { | ||
| recv, err := packets.ReadPacket(fakeServerConn) | ||
| if err != nil { | ||
| return | ||
| } | ||
| if recv.Type == packets.PINGREQ { | ||
| count++ | ||
| pinger.PingResp() | ||
| if count > 1 { // we allow the count to be 1 because the first PINGREQ is sent immediately | ||
| close(tooManyPingreqs) | ||
| } | ||
| } | ||
| } | ||
| }() | ||
| defer fakeServerConn.Close() | ||
|
|
||
| select { | ||
| case <-tooManyPingreqs: | ||
| t.Error("expected DefaultPinger to not send PINGREQs when not needed") | ||
| case err := <-pingResult: | ||
| t.Errorf("expected DefaultPinger to not return error, got %v", err) | ||
| case <-time.After(10 * time.Second): | ||
| // PASS | ||
| } | ||
| } |
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