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technyon
2022-03-22 21:10:43 +01:00
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185
lib/pubsubclient/tests/src/keepalive_spec.cpp Normal file
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#include "PubSubClient.h"
#include "ShimClient.h"
#include "Buffer.h"
#include "BDDTest.h"
#include "trace.h"
#include <unistd.h>
byte server[] = { 172, 16, 0, 2 };
void callback(char* topic, byte* payload, unsigned int length) {
// handle message arrived
}
int test_keepalive_pings_idle() {
IT("keeps an idle connection alive (takes 1 minute)");
ShimClient shimClient;
shimClient.setAllowConnect(true);
byte connack[] = { 0x20, 0x02, 0x00, 0x00 };
shimClient.respond(connack,4);
PubSubClient client(server, 1883, callback, shimClient);
int rc = client.connect((char*)"client_test1");
IS_TRUE(rc);
byte pingreq[] = { 0xC0,0x0 };
shimClient.expect(pingreq,2);
byte pingresp[] = { 0xD0,0x0 };
shimClient.respond(pingresp,2);
for (int i = 0; i < 50; i++) {
sleep(1);
if ( i == 15 || i == 31 || i == 47) {
shimClient.expect(pingreq,2);
shimClient.respond(pingresp,2);
}
rc = client.loop();
IS_TRUE(rc);
}
IS_FALSE(shimClient.error());
END_IT
}
int test_keepalive_pings_with_outbound_qos0() {
IT("keeps a connection alive that only sends qos0 (takes 1 minute)");
ShimClient shimClient;
shimClient.setAllowConnect(true);
byte connack[] = { 0x20, 0x02, 0x00, 0x00 };
shimClient.respond(connack,4);
PubSubClient client(server, 1883, callback, shimClient);
int rc = client.connect((char*)"client_test1");
IS_TRUE(rc);
byte publish[] = {0x30,0xe,0x0,0x5,0x74,0x6f,0x70,0x69,0x63,0x70,0x61,0x79,0x6c,0x6f,0x61,0x64};
for (int i = 0; i < 50; i++) {
TRACE(i<<":");
shimClient.expect(publish,16);
rc = client.publish((char*)"topic",(char*)"payload");
IS_TRUE(rc);
IS_FALSE(shimClient.error());
sleep(1);
if ( i == 15 || i == 31 || i == 47) {
byte pingreq[] = { 0xC0,0x0 };
shimClient.expect(pingreq,2);
byte pingresp[] = { 0xD0,0x0 };
shimClient.respond(pingresp,2);
}
rc = client.loop();
IS_TRUE(rc);
IS_FALSE(shimClient.error());
}
END_IT
}
int test_keepalive_pings_with_inbound_qos0() {
IT("keeps a connection alive that only receives qos0 (takes 1 minute)");
ShimClient shimClient;
shimClient.setAllowConnect(true);
byte connack[] = { 0x20, 0x02, 0x00, 0x00 };
shimClient.respond(connack,4);
PubSubClient client(server, 1883, callback, shimClient);
int rc = client.connect((char*)"client_test1");
IS_TRUE(rc);
byte publish[] = {0x30,0xe,0x0,0x5,0x74,0x6f,0x70,0x69,0x63,0x70,0x61,0x79,0x6c,0x6f,0x61,0x64};
for (int i = 0; i < 50; i++) {
TRACE(i<<":");
sleep(1);
if ( i == 15 || i == 31 || i == 47) {
byte pingreq[] = { 0xC0,0x0 };
shimClient.expect(pingreq,2);
byte pingresp[] = { 0xD0,0x0 };
shimClient.respond(pingresp,2);
}
shimClient.respond(publish,16);
rc = client.loop();
IS_TRUE(rc);
IS_FALSE(shimClient.error());
}
END_IT
}
int test_keepalive_no_pings_inbound_qos1() {
IT("does not send pings for connections with inbound qos1 (takes 1 minute)");
ShimClient shimClient;
shimClient.setAllowConnect(true);
byte connack[] = { 0x20, 0x02, 0x00, 0x00 };
shimClient.respond(connack,4);
PubSubClient client(server, 1883, callback, shimClient);
int rc = client.connect((char*)"client_test1");
IS_TRUE(rc);
byte publish[] = {0x32,0x10,0x0,0x5,0x74,0x6f,0x70,0x69,0x63,0x12,0x34,0x70,0x61,0x79,0x6c,0x6f,0x61,0x64};
byte puback[] = {0x40,0x2,0x12,0x34};
for (int i = 0; i < 50; i++) {
shimClient.respond(publish,18);
shimClient.expect(puback,4);
sleep(1);
rc = client.loop();
IS_TRUE(rc);
IS_FALSE(shimClient.error());
}
END_IT
}
int test_keepalive_disconnects_hung() {
IT("disconnects a hung connection (takes 30 seconds)");
ShimClient shimClient;
shimClient.setAllowConnect(true);
byte connack[] = { 0x20, 0x02, 0x00, 0x00 };
shimClient.respond(connack,4);
PubSubClient client(server, 1883, callback, shimClient);
int rc = client.connect((char*)"client_test1");
IS_TRUE(rc);
byte pingreq[] = { 0xC0,0x0 };
shimClient.expect(pingreq,2);
for (int i = 0; i < 32; i++) {
sleep(1);
rc = client.loop();
}
IS_FALSE(rc);
int state = client.state();
IS_TRUE(state == MQTT_CONNECTION_TIMEOUT);
IS_FALSE(shimClient.error());
END_IT
}
int main()
{
SUITE("Keep-alive");
test_keepalive_pings_idle();
test_keepalive_pings_with_outbound_qos0();
test_keepalive_pings_with_inbound_qos0();
test_keepalive_no_pings_inbound_qos1();
test_keepalive_disconnects_hung();
FINISH
}