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RequestStreamTest.cpp
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226 lines (199 loc) · 7.4 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;
namespace {
class TestHandlerSync : public rsocket::RSocketResponder {
public:
Reference<Flowable<Payload>> handleRequestStream(Payload request, StreamId)
override {
// string from payload data
auto requestString = request.moveDataToString();
return Flowables::range(1, 10)->map([name = std::move(requestString)](
int64_t v) {
std::stringstream ss;
ss << "Hello " << name << " " << v << "!";
std::string s = ss.str();
return Payload(s, "metadata");
});
}
};
TEST(RequestStreamTest, HelloSync) {
folly::ScopedEventBaseThread worker;
auto server = makeServer(std::make_shared<TestHandlerSync>());
auto client = makeClient(worker.getEventBase(), *server->listeningPort());
auto requester = client->getRequester();
auto ts = TestSubscriber<std::string>::create();
requester->requestStream(Payload("Bob"))
->map([](auto p) { return p.moveDataToString(); })
->subscribe(ts);
ts->awaitTerminalEvent();
ts->assertSuccess();
ts->assertValueCount(10);
ts->assertValueAt(0, "Hello Bob 1!");
ts->assertValueAt(9, "Hello Bob 10!");
}
TEST(RequestStreamTest, HelloFlowControl) {
folly::ScopedEventBaseThread worker;
auto server = makeServer(std::make_shared<TestHandlerSync>());
auto client = makeClient(worker.getEventBase(), *server->listeningPort());
auto requester = client->getRequester();
auto ts = TestSubscriber<std::string>::create(5);
requester->requestStream(Payload("Bob"))
->map([](auto p) { return p.moveDataToString(); })
->subscribe(ts);
ts->awaitValueCount(5);
ts->assertValueCount(5);
ts->assertValueAt(0, "Hello Bob 1!");
ts->assertValueAt(4, "Hello Bob 5!");
ts->request(5);
ts->awaitValueCount(10);
ts->assertValueCount(10);
ts->assertValueAt(5, "Hello Bob 6!");
ts->assertValueAt(9, "Hello Bob 10!");
ts->awaitTerminalEvent();
ts->assertSuccess();
}
TEST(RequestStreamTest, HelloNoFlowControl) {
folly::ScopedEventBaseThread worker;
auto server = makeServer(std::make_shared<TestHandlerSync>());
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->requestStream(Payload("Bob"))
->map([](auto p) { return p.moveDataToString(); })
->subscribe(ts);
ts->awaitTerminalEvent();
ts->assertSuccess();
ts->assertValueCount(10);
ts->assertValueAt(0, "Hello Bob 1!");
ts->assertValueAt(9, "Hello Bob 10!");
// 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);
}
class TestHandlerAsync : public rsocket::RSocketResponder {
public:
Reference<Flowable<Payload>> handleRequestStream(Payload request, StreamId)
override {
// string from payload data
auto requestString = request.moveDataToString();
return Flowables::fromPublisher<
Payload>([requestString = std::move(requestString)](
Reference<flowable::Subscriber<Payload>> subscriber) {
std::thread([
requestString = std::move(requestString),
subscriber = std::move(subscriber)
]() {
Flowables::range(1, 40)
->map([name = std::move(requestString)](int64_t v) {
std::stringstream ss;
ss << "Hello " << name << " " << v << "!";
std::string s = ss.str();
return Payload(s, "metadata");
})
->subscribe(subscriber);
})
.detach();
});
}
};
} // namespace
TEST(RequestStreamTest, HelloAsync) {
folly::ScopedEventBaseThread worker;
auto server = makeServer(std::make_shared<TestHandlerAsync>());
auto client = makeClient(worker.getEventBase(), *server->listeningPort());
auto requester = client->getRequester();
auto ts = TestSubscriber<std::string>::create();
requester->requestStream(Payload("Bob"))
->map([](auto p) { return p.moveDataToString(); })
->subscribe(ts);
ts->awaitTerminalEvent();
ts->assertSuccess();
ts->assertValueCount(40);
ts->assertValueAt(0, "Hello Bob 1!");
ts->assertValueAt(39, "Hello Bob 40!");
}
TEST(RequestStreamTest, 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;
requester->requestStream(Payload("foo", "bar"))
->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();
});
CHECK_WAIT(wait_for_on_error);
ASSERT(did_call_on_error);
}
class TestHandlerResponder : public rsocket::RSocketResponder {
public:
Reference<Flowable<Payload>> handleRequestStream(Payload, StreamId) override {
return Flowables::error<Payload>(
std::runtime_error("A wild Error appeared!"));
}
};
TEST(RequestStreamTest, HandleError) {
folly::ScopedEventBaseThread worker;
auto server = makeServer(std::make_shared<TestHandlerResponder>());
auto client = makeClient(worker.getEventBase(), *server->listeningPort());
auto requester = client->getRequester();
auto ts = TestSubscriber<std::string>::create();
requester->requestStream(Payload("Bob"))
->map([](auto p) { return p.moveDataToString(); })
->subscribe(ts);
ts->awaitTerminalEvent();
ts->assertOnErrorMessage("A wild Error appeared!");
}
class TestErrorAfterOnNextResponder : public rsocket::RSocketResponder {
public:
Reference<Flowable<Payload>> handleRequestStream(Payload request, StreamId)
override {
// string from payload data
auto requestString = request.moveDataToString();
return Flowable<Payload>::create([name = std::move(requestString)](
Reference<Subscriber<Payload>> subscriber, int64_t requested) {
EXPECT_GT(requested, 1);
subscriber->onNext(Payload(name, "meta"));
subscriber->onNext(Payload(name, "meta"));
subscriber->onNext(Payload(name, "meta"));
subscriber->onNext(Payload(name, "meta"));
subscriber->onError(std::runtime_error("A wild Error appeared!"));
return std::make_tuple(int64_t(4), true);
});
}
};
TEST(RequestStreamTest, HandleErrorMidStream) {
folly::ScopedEventBaseThread worker;
auto server = makeServer(std::make_shared<TestErrorAfterOnNextResponder>());
auto client = makeClient(worker.getEventBase(), *server->listeningPort());
auto requester = client->getRequester();
auto ts = TestSubscriber<std::string>::create();
requester->requestStream(Payload("Bob"))
->map([](auto p) { return p.moveDataToString(); })
->subscribe(ts);
ts->awaitTerminalEvent();
ts->assertValueCount(4);
ts->assertOnErrorMessage("A wild Error appeared!");
}