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#include "../test.h"
#include <rxcpp/operators/rx-reduce.hpp>
#include <rxcpp/operators/rx-map.hpp>
#include <rxcpp/operators/rx-subscribe_on.hpp>
#include <rxcpp/operators/rx-observe_on.hpp>
#include <sstream>
static const int static_subscriptions = 50000;
SCENARIO("for loop subscribes to map with subscribe_on and observe_on", "[!hide][for][just][subscribe][subscribe_on][observe_on][long][perf]"){
const int& subscriptions = static_subscriptions;
GIVEN("a for loop"){
WHEN("subscribe 50K times"){
using namespace std::chrono;
typedef steady_clock clock;
int runs = 10;
for (;runs > 0; --runs) {
int c = 0;
int n = 1;
auto start = clock::now();
for (int i = 0; i < subscriptions; ++i) {
c += rx::observable<>::just(1)
.map([](int i) {
std::stringstream serializer;
serializer << i;
return serializer.str();
})
.map([](const std::string& s) {
int i;
std::stringstream(s) >> i;
return i;
})
.subscribe_on(rx::observe_on_event_loop())
.observe_on(rx::observe_on_event_loop())
.as_blocking()
.count();
}
auto finish = clock::now();
auto msElapsed = duration_cast<milliseconds>(finish-start);
REQUIRE(subscriptions == c);
std::cout << "loop subscribe map subscribe_on observe_on : " << n << " subscribed, " << c << " on_next calls, " << msElapsed.count() << "ms elapsed, " << c / (msElapsed.count() / 1000.0) << " ops/sec" << std::endl;
}
}
}
}
SCENARIO("for loop subscribes to map with subscribe_on", "[!hide][subscribe_on_only][for][just][subscribe][subscribe_on][long][perf]"){
const int& subscriptions = static_subscriptions;
GIVEN("a for loop"){
WHEN("subscribe 50K times"){
using namespace std::chrono;
typedef steady_clock clock;
int runs = 10;
for (;runs > 0; --runs) {
int c = 0;
int n = 1;
auto start = clock::now();
for (int i = 0; i < subscriptions; ++i) {
c += rx::observable<>::
just(1).
map([](int i) {
std::stringstream serializer;
serializer << i;
return serializer.str();
}).
map([](const std::string& s) {
int i;
std::stringstream(s) >> i;
return i;
}).
subscribe_on(rx::observe_on_event_loop()).
as_blocking().
count();
}
auto finish = clock::now();
auto msElapsed = duration_cast<milliseconds>(finish-start);
REQUIRE(subscriptions == c);
std::cout << "loop subscribe map subscribe_on : " << n << " subscribed, " << c << " on_next calls, " << msElapsed.count() << "ms elapsed, " << c / (msElapsed.count() / 1000.0) << " ops/sec" << std::endl;
}
}
}
}
SCENARIO("subscribe_on", "[subscribe][subscribe_on]"){
GIVEN("a source"){
auto sc = rxsc::make_test();
auto so = rx::synchronize_in_one_worker(sc);
auto w = sc.create_worker();
const rxsc::test::messages<int> on;
auto xs = sc.make_hot_observable({
on.next(150, 1),
on.next(210, 2),
on.next(240, 3),
on.completed(300)
});
WHEN("subscribe_on is specified"){
auto res = w.start(
[so, xs]() {
return xs
.subscribe_on(so);
}
);
THEN("the output contains items sent while subscribed"){
auto required = rxu::to_vector({
on.next(210, 2),
on.next(240, 3),
on.completed(300)
});
auto actual = res.get_observer().messages();
REQUIRE(required == actual);
}
THEN("there was 1 subscription/unsubscription to the source"){
auto required = rxu::to_vector({
on.subscribe(201, 300)
});
auto actual = xs.subscriptions();
REQUIRE(required == actual);
}
}
}
}
SCENARIO("stream subscribe_on", "[subscribe][subscribe_on]"){
GIVEN("a source"){
auto sc = rxsc::make_test();
auto so = rx::synchronize_in_one_worker(sc);
auto w = sc.create_worker();
const rxsc::test::messages<int> on;
auto xs = sc.make_hot_observable({
on.next(150, 1),
on.next(210, 2),
on.next(240, 3),
on.completed(300)
});
WHEN("subscribe_on is specified"){
auto res = w.start(
[so, xs]() {
return xs
| rxo::subscribe_on(so);
}
);
THEN("the output contains items sent while subscribed"){
auto required = rxu::to_vector({
on.next(210, 2),
on.next(240, 3),
on.completed(300)
});
auto actual = res.get_observer().messages();
REQUIRE(required == actual);
}
THEN("there was 1 subscription/unsubscription to the source"){
auto required = rxu::to_vector({
on.subscribe(201, 300)
});
auto actual = xs.subscriptions();
REQUIRE(required == actual);
}
}
}
}
|
