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RequestChannelTest.cpp
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361 lines (292 loc) · 12.2 KB
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// Copyright 2004-present Facebook. All Rights Reserved.
#include <folly/io/async/ScopedEventBaseThread.h>
#include <gtest/gtest.h>
#include <thread>
#include "RSocketTests.h"
#include "yarpl/Flowable.h"
#include "yarpl/flowable/TestSubscriber.h"
using namespace yarpl;
using namespace yarpl::flowable;
using namespace rsocket;
using namespace rsocket::tests;
using namespace rsocket::tests::client_server;
/**
* Test a finite stream both directions.
*/
class TestHandlerHello : public rsocket::RSocketResponder {
public:
/// Handles a new inbound Stream requested by the other end.
yarpl::Reference<Flowable<rsocket::Payload>> handleRequestChannel(
rsocket::Payload initialPayload,
yarpl::Reference<Flowable<rsocket::Payload>> request,
rsocket::StreamId) override {
// say "Hello" to each name on the input stream
return request->map([initialPayload = std::move(initialPayload)](
Payload p) {
std::stringstream ss;
ss << "[" << initialPayload.cloneDataToString() << "] "
<< "Hello " << p.moveDataToString() << "!";
std::string s = ss.str();
return Payload(s);
});
}
};
TEST(RequestChannelTest, Hello) {
folly::ScopedEventBaseThread worker;
auto server = makeServer(std::make_shared<TestHandlerHello>());
auto client = makeClient(worker.getEventBase(), *server->listeningPort());
auto requester = client->getRequester();
auto ts = TestSubscriber<std::string>::create();
requester
->requestChannel(
Flowables::justN({"/hello", "Bob", "Jane"})->map([](std::string v) {
return Payload(v);
}))
->map([](auto p) { return p.moveDataToString(); })
->subscribe(ts);
ts->awaitTerminalEvent();
ts->assertSuccess();
ts->assertValueCount(2);
// assert that we echo back the 2nd and 3rd request values
// with the 1st initial payload prepended to each
ts->assertValueAt(0, "[/hello] Hello Bob!");
ts->assertValueAt(1, "[/hello] Hello Jane!");
}
TEST(RequestChannelTest, HelloNoFlowControl) {
folly::ScopedEventBaseThread worker;
auto server = makeServer(std::make_shared<TestHandlerHello>());
auto stats = std::make_shared<RSocketStatsFlowControl>();
auto client = makeClient(
worker.getEventBase(), *server->listeningPort(), nullptr, stats);
auto requester = client->getRequester();
auto ts = TestSubscriber<std::string>::create();
requester
->requestChannel(
Flowables::justN({"/hello", "Bob", "Jane"})->map([](std::string v) {
return Payload(v);
}))
->map([](auto p) { return p.moveDataToString(); })
->subscribe(ts);
ts->awaitTerminalEvent();
ts->assertSuccess();
ts->assertValueCount(2);
// assert that we echo back the 2nd and 3rd request values
// with the 1st initial payload prepended to each
ts->assertValueAt(0, "[/hello] Hello Bob!");
ts->assertValueAt(1, "[/hello] Hello Jane!");
// Make sure that the initial requestN in the Stream Request Frame
// is already enough and no other requestN messages are sent.
EXPECT_EQ(stats->writeRequestN_, 0);
}
TEST(RequestChannelTest, RequestOnDisconnectedClient) {
folly::ScopedEventBaseThread worker;
auto client = makeDisconnectedClient(worker.getEventBase());
auto requester = client->getRequester();
bool did_call_on_error = false;
folly::Baton<> wait_for_on_error;
auto instream = Flowables::empty<Payload>();
requester->requestChannel(instream)->subscribe(
[](auto /* payload */) {
// onNext shouldn't be called
FAIL();
},
[&](folly::exception_wrapper) {
did_call_on_error = true;
wait_for_on_error.post();
},
[]() {
// onComplete shouldn't be called
FAIL();
});
wait_for_on_error.timed_wait(std::chrono::milliseconds(100));
ASSERT(did_call_on_error);
}
class TestChannelResponder : public rsocket::RSocketResponder {
public:
TestChannelResponder(
int64_t rangeEnd = 10,
int64_t initialSubReq = credits::kNoFlowControl)
: rangeEnd_{rangeEnd},
testSubscriber_{TestSubscriber<std::string>::create(initialSubReq)} {}
yarpl::Reference<Flowable<rsocket::Payload>> handleRequestChannel(
rsocket::Payload initialPayload,
yarpl::Reference<Flowable<rsocket::Payload>> requestStream,
rsocket::StreamId) override {
// add initial payload to testSubscriber values list
testSubscriber_->manuallyPush(initialPayload.moveDataToString());
requestStream->map([](auto p) { return p.moveDataToString(); })
->subscribe(testSubscriber_);
return Flowables::range(1, rangeEnd_)->map([&](int64_t v) {
std::stringstream ss;
ss << "Responder stream: " << v << " of " << rangeEnd_;
std::string s = ss.str();
return Payload(s, "metadata");
});
}
Reference<TestSubscriber<std::string>> getChannelSubscriber() {
return testSubscriber_;
}
private:
int64_t rangeEnd_;
Reference<TestSubscriber<std::string>> testSubscriber_;
};
TEST(RequestChannelTest, CompleteRequesterResponderContinues) {
int64_t responderRange = 100;
int64_t responderSubscriberInitialRequest = credits::kNoFlowControl;
auto responder = std::make_shared<TestChannelResponder>(
responderRange, responderSubscriberInitialRequest);
folly::ScopedEventBaseThread worker;
auto server = makeServer(responder);
auto client = makeClient(worker.getEventBase(), *server->listeningPort());
auto requester = client->getRequester();
auto requestSubscriber = TestSubscriber<std::string>::create(50);
auto responderSubscriber = responder->getChannelSubscriber();
int64_t requesterRangeEnd = 10;
auto requesterFlowable =
Flowables::range(1, requesterRangeEnd)->map([=](int64_t v) {
std::stringstream ss;
ss << "Requester stream: " << v << " of " << requesterRangeEnd;
std::string s = ss.str();
return Payload(s, "metadata");
});
requester->requestChannel(requesterFlowable)
->map([](auto p) { return p.moveDataToString(); })
->subscribe(requestSubscriber);
// finish streaming from Requester
responderSubscriber->awaitTerminalEvent();
responderSubscriber->assertSuccess();
responderSubscriber->assertValueCount(10);
responderSubscriber->assertValueAt(0, "Requester stream: 1 of 10");
responderSubscriber->assertValueAt(9, "Requester stream: 10 of 10");
// Requester stream is closed, Responder continues
requestSubscriber->request(50);
requestSubscriber->awaitTerminalEvent();
requestSubscriber->assertSuccess();
requestSubscriber->assertValueCount(100);
requestSubscriber->assertValueAt(0, "Responder stream: 1 of 100");
requestSubscriber->assertValueAt(99, "Responder stream: 100 of 100");
}
TEST(RequestChannelTest, CompleteResponderRequesterContinues) {
int64_t responderRange = 10;
int64_t responderSubscriberInitialRequest = 50;
auto responder = std::make_shared<TestChannelResponder>(
responderRange, responderSubscriberInitialRequest);
folly::ScopedEventBaseThread worker;
auto server = makeServer(responder);
auto client = makeClient(worker.getEventBase(), *server->listeningPort());
auto requester = client->getRequester();
auto requestSubscriber = TestSubscriber<std::string>::create();
auto responderSubscriber = responder->getChannelSubscriber();
int64_t requesterRangeEnd = 100;
auto requesterFlowable =
Flowables::range(1, requesterRangeEnd)->map([=](int64_t v) {
std::stringstream ss;
ss << "Requester stream: " << v << " of " << requesterRangeEnd;
std::string s = ss.str();
return Payload(s, "metadata");
});
requester->requestChannel(requesterFlowable)
->map([](auto p) { return p.moveDataToString(); })
->subscribe(requestSubscriber);
// finish streaming from Responder
requestSubscriber->awaitTerminalEvent();
requestSubscriber->assertSuccess();
requestSubscriber->assertValueCount(10);
requestSubscriber->assertValueAt(0, "Responder stream: 1 of 10");
requestSubscriber->assertValueAt(9, "Responder stream: 10 of 10");
// Responder stream is closed, Requester continues
responderSubscriber->request(50);
responderSubscriber->awaitTerminalEvent();
responderSubscriber->assertSuccess();
responderSubscriber->assertValueCount(100);
responderSubscriber->assertValueAt(0, "Requester stream: 1 of 100");
responderSubscriber->assertValueAt(99, "Requester stream: 100 of 100");
}
TEST(RequestChannelTest, FlowControl) {
int64_t responderRange = 10;
int64_t responderSubscriberInitialRequest = 0;
auto responder = std::make_shared<TestChannelResponder>(
responderRange, responderSubscriberInitialRequest);
folly::ScopedEventBaseThread worker;
auto server = makeServer(responder);
auto client = makeClient(worker.getEventBase(), *server->listeningPort());
auto requester = client->getRequester();
auto requestSubscriber = TestSubscriber<std::string>::create(1);
auto responderSubscriber = responder->getChannelSubscriber();
int64_t requesterRangeEnd = 10;
auto requesterFlowable =
Flowables::range(1, requesterRangeEnd)->map([&](int64_t v) {
std::stringstream ss;
ss << "Requester stream: " << v << " of " << requesterRangeEnd;
std::string s = ss.str();
return Payload(s, "metadata");
});
requester->requestChannel(requesterFlowable)
->map([](auto p) { return p.moveDataToString(); })
->subscribe(requestSubscriber);
responderSubscriber->awaitValueCount(1);
requestSubscriber->awaitValueCount(1);
for (int i = 2; i <= 10; i++) {
requestSubscriber->request(1);
responderSubscriber->request(1);
responderSubscriber->awaitValueCount(i);
requestSubscriber->awaitValueCount(i);
requestSubscriber->assertValueCount(i);
responderSubscriber->assertValueCount(i);
}
requestSubscriber->awaitTerminalEvent();
responderSubscriber->awaitTerminalEvent();
requestSubscriber->assertSuccess();
responderSubscriber->assertSuccess();
requestSubscriber->assertValueAt(0, "Responder stream: 1 of 10");
requestSubscriber->assertValueAt(9, "Responder stream: 10 of 10");
responderSubscriber->assertValueAt(0, "Requester stream: 1 of 10");
responderSubscriber->assertValueAt(9, "Requester stream: 10 of 10");
}
class TestChannelResponderFailure : public rsocket::RSocketResponder {
public:
TestChannelResponderFailure()
: testSubscriber_{TestSubscriber<std::string>::create()} {}
yarpl::Reference<Flowable<rsocket::Payload>> handleRequestChannel(
rsocket::Payload initialPayload,
yarpl::Reference<Flowable<rsocket::Payload>> requestStream,
rsocket::StreamId) override {
// add initial payload to testSubscriber values list
testSubscriber_->manuallyPush(initialPayload.moveDataToString());
requestStream->map([](auto p) { return p.moveDataToString(); })
->subscribe(testSubscriber_);
return Flowables::error<Payload>(
std::runtime_error("A wild Error appeared!"));
}
Reference<TestSubscriber<std::string>> getChannelSubscriber() {
return testSubscriber_;
}
private:
Reference<TestSubscriber<std::string>> testSubscriber_;
};
TEST(RequestChannelTest, FailureOnResponderRequesterSees) {
auto responder = std::make_shared<TestChannelResponderFailure>();
folly::ScopedEventBaseThread worker;
auto server = makeServer(responder);
auto client = makeClient(worker.getEventBase(), *server->listeningPort());
auto requester = client->getRequester();
auto requestSubscriber = TestSubscriber<std::string>::create();
auto responderSubscriber = responder->getChannelSubscriber();
int64_t requesterRangeEnd = 10;
auto requesterFlowable =
Flowables::range(1, requesterRangeEnd)->map([&](int64_t v) {
std::stringstream ss;
ss << "Requester stream: " << v << " of " << requesterRangeEnd;
std::string s = ss.str();
return Payload(s, "metadata");
});
requester->requestChannel(requesterFlowable)
->map([](auto p) { return p.moveDataToString(); })
->subscribe(requestSubscriber);
// failure streaming from Responder
requestSubscriber->awaitTerminalEvent();
requestSubscriber->assertOnErrorMessage("A wild Error appeared!");
responderSubscriber->awaitTerminalEvent();
responderSubscriber->assertValueAt(0, "Requester stream: 1 of 10");
responderSubscriber->assertValueAt(9, "Requester stream: 10 of 10");
}