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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/messagebus/emptyreply.h>
#include <vespa/messagebus/errorcode.h>
#include <vespa/messagebus/messagebus.h>
#include <vespa/messagebus/routing/retrytransienterrorspolicy.h>
#include <vespa/messagebus/testlib/receptor.h>
#include <vespa/messagebus/testlib/simplemessage.h>
#include <vespa/messagebus/testlib/simpleprotocol.h>
#include <vespa/messagebus/testlib/slobrok.h>
#include <vespa/messagebus/testlib/testserver.h>
#include <vespa/vespalib/testkit/testapp.h>
using namespace mbus;
////////////////////////////////////////////////////////////////////////////////
//
// Utilities
//
////////////////////////////////////////////////////////////////////////////////
class StringList : public std::vector<string> {
public:
StringList &add(const string &str);
};
StringList &
StringList::add(const string &str)
{
std::vector<string>::push_back(str); return *this;
}
static const duration GET_MESSAGE_TIMEOUT = 60s;
////////////////////////////////////////////////////////////////////////////////
//
// Setup
//
////////////////////////////////////////////////////////////////////////////////
class TestData {
public:
Slobrok _slobrok;
RetryTransientErrorsPolicy::SP _retryPolicy;
TestServer _srcServer;
SourceSession::UP _srcSession;
Receptor _srcHandler;
TestServer _dstServer;
DestinationSession::UP _dstSession;
Receptor _dstHandler;
public:
~TestData();
TestData();
bool start();
};
class Test : public vespalib::TestApp {
private:
Message::UP createMessage(const string &msg);
void replyFromDestination(TestData &data, Message::UP msg, uint32_t errorCode, double retryDelay);
public:
int Main() override;
void testRetryTag(TestData &data);
void testRetryEnabledTag(TestData &data);
void testTransientError(TestData &data);
void testFatalError(TestData &data);
void testDisableRetry(TestData &data);
void testRetryDelay(TestData &data);
void testRequestRetryDelay(TestData &data);
};
TEST_APPHOOK(Test);
TestData::TestData() :
_slobrok(),
_retryPolicy(new RetryTransientErrorsPolicy()),
_srcServer(MessageBusParams().setRetryPolicy(_retryPolicy).addProtocol(std::make_shared<SimpleProtocol>()),
RPCNetworkParams(_slobrok.config())),
_srcSession(),
_srcHandler(),
_dstServer(MessageBusParams().addProtocol(std::make_shared<SimpleProtocol>()),
RPCNetworkParams(_slobrok.config()).setIdentity(Identity("dst"))),
_dstSession(),
_dstHandler()
{ }
TestData::~TestData() = default;
bool
TestData::start()
{
_srcSession = _srcServer.mb.createSourceSession(SourceSessionParams().setReplyHandler(_srcHandler));
if ( ! _srcSession) {
return false;
}
_dstSession = _dstServer.mb.createDestinationSession(DestinationSessionParams().setName("session").setMessageHandler(_dstHandler));
if ( ! _dstSession) {
return false;
}
if (!_srcServer.waitSlobrok("dst/session", 1u)) {
return false;
}
return true;
}
Message::UP
Test::createMessage(const string &msg)
{
Message::UP ret(new SimpleMessage(msg));
ret->getTrace().setLevel(9);
return ret;
}
int
Test::Main()
{
TEST_INIT("resender_test");
TestData data;
ASSERT_TRUE(data.start());
testRetryTag(data); TEST_FLUSH();
testRetryEnabledTag(data); TEST_FLUSH();
testTransientError(data); TEST_FLUSH();
testFatalError(data); TEST_FLUSH();
testDisableRetry(data); TEST_FLUSH();
testRetryDelay(data); TEST_FLUSH();
testRequestRetryDelay(data); TEST_FLUSH();
TEST_DONE();
}
void
Test::replyFromDestination(TestData &data, Message::UP msg, uint32_t errorCode, double retryDelay)
{
Reply::UP reply(new EmptyReply());
reply->swapState(*msg);
if (errorCode != ErrorCode::NONE) {
reply->addError(Error(errorCode, "err"));
}
reply->setRetryDelay(retryDelay);
data._dstSession->reply(std::move(reply));
}
////////////////////////////////////////////////////////////////////////////////
//
// Tests
//
////////////////////////////////////////////////////////////////////////////////
void
Test::testRetryTag(TestData &data)
{
data._retryPolicy->setEnabled(true);
EXPECT_TRUE(data._srcSession->send(createMessage("msg"), Route::parse("dst/session")).isAccepted());
Message::UP msg = data._dstHandler.getMessage(GET_MESSAGE_TIMEOUT);
ASSERT_TRUE(msg);
for (uint32_t i = 0; i < 5; ++i) {
EXPECT_EQUAL(i, msg->getRetry());
EXPECT_EQUAL(true, msg->getRetryEnabled());
replyFromDestination(data, std::move(msg), ErrorCode::APP_TRANSIENT_ERROR, 0);
msg = data._dstHandler.getMessage(GET_MESSAGE_TIMEOUT);
ASSERT_TRUE(msg);
}
data._dstSession->acknowledge(std::move(msg));
Reply::UP reply = data._srcHandler.getReply();
ASSERT_TRUE(reply);
EXPECT_TRUE(!reply->hasErrors());
msg = data._dstHandler.getMessageNow();
EXPECT_FALSE(msg);
printf("%s", reply->getTrace().toString().c_str());
}
void
Test::testRetryEnabledTag(TestData &data)
{
data._retryPolicy->setEnabled(true);
Message::UP msg = createMessage("msg");
msg->setRetryEnabled(false);
EXPECT_TRUE(data._srcSession->send(std::move(msg), Route::parse("dst/session")).isAccepted());
msg = data._dstHandler.getMessage(GET_MESSAGE_TIMEOUT);
ASSERT_TRUE(msg);
EXPECT_EQUAL(false, msg->getRetryEnabled());
replyFromDestination(data, std::move(msg), ErrorCode::APP_TRANSIENT_ERROR, 0);
Reply::UP reply = data._srcHandler.getReply();
ASSERT_TRUE(reply);
EXPECT_TRUE(reply->hasErrors());
msg = data._dstHandler.getMessageNow();
EXPECT_FALSE(msg);
printf("%s", reply->getTrace().toString().c_str());
}
void
Test::testTransientError(TestData &data)
{
data._retryPolicy->setEnabled(true);
EXPECT_TRUE(data._srcSession->send(createMessage("msg"), Route::parse("dst/session")).isAccepted());
Message::UP msg = data._dstHandler.getMessage(GET_MESSAGE_TIMEOUT);
ASSERT_TRUE(msg);
replyFromDestination(data, std::move(msg), ErrorCode::APP_TRANSIENT_ERROR, 0);
msg = data._dstHandler.getMessage(GET_MESSAGE_TIMEOUT);
ASSERT_TRUE(msg);
replyFromDestination(data, std::move(msg), ErrorCode::APP_FATAL_ERROR, 0);
Reply::UP reply = data._srcHandler.getReply();
ASSERT_TRUE(reply);
EXPECT_TRUE(reply->hasFatalErrors());
msg = data._dstHandler.getMessageNow();
EXPECT_FALSE(msg);
printf("%s", reply->getTrace().toString().c_str());
}
void
Test::testFatalError(TestData &data)
{
data._retryPolicy->setEnabled(true);
EXPECT_TRUE(data._srcSession->send(createMessage("msg"), Route::parse("dst/session")).isAccepted());
Message::UP msg = data._dstHandler.getMessage(GET_MESSAGE_TIMEOUT);
ASSERT_TRUE(msg);
replyFromDestination(data, std::move(msg), ErrorCode::APP_FATAL_ERROR, 0);
Reply::UP reply = data._srcHandler.getReply();
ASSERT_TRUE(reply);
EXPECT_TRUE(reply->hasFatalErrors());
msg = data._dstHandler.getMessageNow();
EXPECT_FALSE(msg);
printf("%s", reply->getTrace().toString().c_str());
}
void
Test::testDisableRetry(TestData &data)
{
data._retryPolicy->setEnabled(false);
EXPECT_TRUE(data._srcSession->send(createMessage("msg"), Route::parse("dst/session")).isAccepted());
Message::UP msg = data._dstHandler.getMessage(GET_MESSAGE_TIMEOUT);
ASSERT_TRUE(msg);
replyFromDestination(data, std::move(msg), ErrorCode::APP_TRANSIENT_ERROR, 0);
Reply::UP reply = data._srcHandler.getReply();
ASSERT_TRUE(reply);
EXPECT_TRUE(reply->hasErrors());
EXPECT_TRUE(!reply->hasFatalErrors());
msg = data._dstHandler.getMessageNow();
EXPECT_FALSE(msg);
printf("%s", reply->getTrace().toString().c_str());
}
void
Test::testRetryDelay(TestData &data)
{
data._retryPolicy->setEnabled(true);
data._retryPolicy->setBaseDelay(0.01);
EXPECT_TRUE(data._srcSession->send(createMessage("msg"), Route::parse("dst/session")).isAccepted());
Message::UP msg = data._dstHandler.getMessage(GET_MESSAGE_TIMEOUT);
ASSERT_TRUE(msg);
for (uint32_t i = 0; i < 5; ++i) {
EXPECT_EQUAL(i, msg->getRetry());
replyFromDestination(data, std::move(msg), ErrorCode::APP_TRANSIENT_ERROR, -1);
msg = data._dstHandler.getMessage(GET_MESSAGE_TIMEOUT);
ASSERT_TRUE(msg);
}
replyFromDestination(data, std::move(msg), ErrorCode::APP_FATAL_ERROR, 0);
Reply::UP reply = data._srcHandler.getReply();
ASSERT_TRUE(reply);
EXPECT_TRUE(reply->hasFatalErrors());
msg = data._dstHandler.getMessageNow();
EXPECT_FALSE(msg);
string trace = reply->getTrace().toString();
EXPECT_TRUE(trace.find("retry 1 in 0.000") != string::npos);
EXPECT_TRUE(trace.find("retry 2 in 0.020") != string::npos);
EXPECT_TRUE(trace.find("retry 3 in 0.040") != string::npos);
EXPECT_TRUE(trace.find("retry 4 in 0.080") != string::npos);
EXPECT_TRUE(trace.find("retry 5 in 0.160") != string::npos);
}
void
Test::testRequestRetryDelay(TestData &data)
{
data._retryPolicy->setEnabled(true);
data._retryPolicy->setBaseDelay(1);
EXPECT_TRUE(data._srcSession->send(createMessage("msg"), Route::parse("dst/session")).isAccepted());
Message::UP msg = data._dstHandler.getMessage(GET_MESSAGE_TIMEOUT);
ASSERT_TRUE(msg);
for (uint32_t i = 0; i < 5; ++i) {
EXPECT_EQUAL(i, msg->getRetry());
replyFromDestination(data, std::move(msg), ErrorCode::APP_TRANSIENT_ERROR, i / 50.0);
msg = data._dstHandler.getMessage(GET_MESSAGE_TIMEOUT);
ASSERT_TRUE(msg);
}
replyFromDestination(data, std::move(msg), ErrorCode::APP_FATAL_ERROR, 0);
Reply::UP reply = data._srcHandler.getReply();
ASSERT_TRUE(reply);
EXPECT_TRUE(reply->hasFatalErrors());
msg = data._dstHandler.getMessageNow();
EXPECT_FALSE(msg);
string trace = reply->getTrace().toString();
EXPECT_TRUE(trace.find("retry 1 in 0.000") != string::npos);
EXPECT_TRUE(trace.find("retry 2 in 0.020") != string::npos);
EXPECT_TRUE(trace.find("retry 3 in 0.040") != string::npos);
EXPECT_TRUE(trace.find("retry 4 in 0.060") != string::npos);
EXPECT_TRUE(trace.find("retry 5 in 0.080") != string::npos);
}
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