#include "../test.h"
#include <rxcpp/operators/rx-reduce.hpp>
#include <rxcpp/operators/rx-filter.hpp>
#include <rxcpp/operators/rx-map.hpp>
#include <rxcpp/operators/rx-take.hpp>
#include <rxcpp/operators/rx-flat_map.hpp>
#include <rxcpp/operators/rx-observe_on.hpp>
static const int static_tripletCount = 100;
SCENARIO("pythagorian for loops", "[!hide][for][pythagorian][perf]"){
const int& tripletCount = static_tripletCount;
GIVEN("a for loop"){
WHEN("generating pythagorian triplets"){
using namespace std::chrono;
typedef steady_clock clock;
int c = 0;
int ct = 0;
int n = 1;
auto start = clock::now();
for(int z = 1;; ++z)
{
for(int x = 1; x <= z; ++x)
{
for(int y = x; y <= z; ++y)
{
++c;
if(x*x + y*y == z*z)
{
++ct;
if(ct == tripletCount)
goto done;
}
}
}
}
done:
auto finish = clock::now();
auto msElapsed = duration_cast<milliseconds>(finish.time_since_epoch()) -
duration_cast<milliseconds>(start.time_since_epoch());
std::cout << "pythagorian for : " << n << " subscribed, " << c << " filtered to, " << ct << " triplets, " << msElapsed.count() << "ms elapsed " << c / (msElapsed.count() / 1000.0) << " ops/sec" << std::endl;
}
}
}
SCENARIO("merge_transform pythagorian ranges", "[!hide][range][merge_transform][pythagorian][perf]"){
const int& tripletCount = static_tripletCount;
GIVEN("some ranges"){
WHEN("generating pythagorian triplets"){
using namespace std::chrono;
typedef steady_clock clock;
auto so = rx::identity_immediate();
int c = 0;
int ct = 0;
int n = 1;
auto start = clock::now();
auto triples =
rxs::range(1, so)
.merge_transform(
[&c, so](int z){
return rxs::range(1, z, 1, so)
.flat_map(
[&c, so, z](int x){
return rxs::range(x, z, 1, so)
.filter([&c, z, x](int y){++c; return x*x + y*y == z*z;})
.transform([z, x](int y){return std::make_tuple(x, y, z);})
// forget type to workaround lambda deduction bug on msvc 2013
.as_dynamic();},
[](int /*x*/, std::tuple<int,int,int> triplet){return triplet;})
// forget type to workaround lambda deduction bug on msvc 2013
.as_dynamic();},
[](int /*z*/, std::tuple<int,int,int> triplet){return triplet;});
triples
.take(tripletCount)
.subscribe(
rxu::apply_to([&ct](int /*x*/,int /*y*/,int /*z*/){
++ct;
}));
auto finish = clock::now();
auto msElapsed = duration_cast<milliseconds>(finish.time_since_epoch()) -
duration_cast<milliseconds>(start.time_since_epoch());
std::cout << "merge pythagorian range : " << n << " subscribed, " << c << " filtered to, " << ct << " triplets, " << msElapsed.count() << "ms elapsed " << c / (msElapsed.count() / 1000.0) << " ops/sec" << std::endl;
}
}
}
SCENARIO("synchronize merge_transform pythagorian ranges", "[!hide][range][merge_transform][synchronize][pythagorian][perf]"){
const int& tripletCount = static_tripletCount;
GIVEN("some ranges"){
WHEN("generating pythagorian triplets"){
using namespace std::chrono;
typedef steady_clock clock;
auto so = rx::synchronize_event_loop();
int c = 0;
int n = 1;
auto start = clock::now();
auto triples =
rxs::range(1, so)
.merge_transform(
[&c, so](int z){
return rxs::range(1, z, 1, so)
.merge_transform(
[&c, so, z](int x){
return rxs::range(x, z, 1, so)
.filter([&c, z, x](int y){
++c;
if (x*x + y*y == z*z) {
return true;}
else {
return false;}})
.transform([z, x](int y){return std::make_tuple(x, y, z);})
// forget type to workaround lambda deduction bug on msvc 2013
.as_dynamic();},
[](int /*x*/, std::tuple<int,int,int> triplet){return triplet;},
so)
// forget type to workaround lambda deduction bug on msvc 2013
.as_dynamic();},
[](int /*z*/, std::tuple<int,int,int> triplet){return triplet;},
so);
int ct = triples
.take(tripletCount)
.as_blocking()
.count();
auto finish = clock::now();
auto msElapsed = duration_cast<milliseconds>(finish.time_since_epoch()) -
duration_cast<milliseconds>(start.time_since_epoch());
std::cout << "merge sync pythagorian range : " << n << " subscribed, " << c << " filtered to, " << ct << " triplets, " << msElapsed.count() << "ms elapsed " << c / (msElapsed.count() / 1000.0) << " ops/sec" << std::endl;
}
}
}
SCENARIO("observe_on merge_transform pythagorian ranges", "[!hide][range][merge_transform][observe_on][pythagorian][perf]"){
const int& tripletCount = static_tripletCount;
GIVEN("some ranges"){
WHEN("generating pythagorian triplets"){
using namespace std::chrono;
typedef steady_clock clock;
auto so = rx::observe_on_event_loop();
int c = 0;
int n = 1;
auto start = clock::now();
auto triples =
rxs::range(1, so)
.merge_transform(
[&c, so](int z){
return rxs::range(1, z, 1, so)
.merge_transform(
[&c, so, z](int x){
return rxs::range(x, z, 1, so)
.filter([&c, z, x](int y){
++c;
if (x*x + y*y == z*z) {
return true;}
else {
return false;}})
.transform([z, x](int y){return std::make_tuple(x, y, z);})
// forget type to workaround lambda deduction bug on msvc 2013
.as_dynamic();},
[](int /*x*/, std::tuple<int,int,int> triplet){return triplet;},
so)
// forget type to workaround lambda deduction bug on msvc 2013
.as_dynamic();},
[](int /*z*/, std::tuple<int,int,int> triplet){return triplet;},
so);
int ct = triples
.take(tripletCount)
.as_blocking()
.count();
auto finish = clock::now();
auto msElapsed = duration_cast<milliseconds>(finish.time_since_epoch()) -
duration_cast<milliseconds>(start.time_since_epoch());
std::cout << "merge observe_on pythagorian range : " << n << " subscribed, " << c << " filtered to, " << ct << " triplets, " << msElapsed.count() << "ms elapsed " << c / (msElapsed.count() / 1000.0) << " ops/sec" << std::endl;
}
}
}
SCENARIO("serialize merge_transform pythagorian ranges", "[!hide][range][merge_transform][serialize][pythagorian][perf]"){
const int& tripletCount = static_tripletCount;
GIVEN("some ranges"){
WHEN("generating pythagorian triplets"){
using namespace std::chrono;
typedef steady_clock clock;
auto so = rx::serialize_event_loop();
int c = 0;
int n = 1;
auto start = clock::now();
auto triples =
rxs::range(1, so)
.merge_transform(
[&c, so](int z){
return rxs::range(1, z, 1, so)
.merge_transform(
[&c, so, z](int x){
return rxs::range(x, z, 1, so)
.filter([&c, z, x](int y){
++c;
if (x*x + y*y == z*z) {
return true;}
else {
return false;}})
.transform([z, x](int y){return std::make_tuple(x, y, z);})
// forget type to workaround lambda deduction bug on msvc 2013
.as_dynamic();},
[](int /*x*/, std::tuple<int,int,int> triplet){return triplet;},
so)
// forget type to workaround lambda deduction bug on msvc 2013
.as_dynamic();},
[](int /*z*/, std::tuple<int,int,int> triplet){return triplet;},
so);
int ct = triples
.take(tripletCount)
.as_blocking()
.count();
auto finish = clock::now();
auto msElapsed = duration_cast<milliseconds>(finish.time_since_epoch()) -
duration_cast<milliseconds>(start.time_since_epoch());
std::cout << "merge serial pythagorian range : " << n << " subscribed, " << c << " filtered to, " << ct << " triplets, " << msElapsed.count() << "ms elapsed " << c / (msElapsed.count() / 1000.0) << " ops/sec" << std::endl;
}
}
}
SCENARIO("flat_map completes", "[flat_map][map][operators]"){
GIVEN("two cold observables. one of ints. one of strings."){
auto sc = rxsc::make_test();
auto w = sc.create_worker();
const rxsc::test::messages<int> i_on;
const rxsc::test::messages<std::string> s_on;
auto xs = sc.make_cold_observable({
i_on.next(100, 4),
i_on.next(200, 2),
i_on.next(300, 3),
i_on.next(400, 1),
i_on.completed(500)
});
auto ys = sc.make_cold_observable({
s_on.next(50, "foo"),
s_on.next(100, "bar"),
s_on.next(150, "baz"),
s_on.next(200, "qux"),
s_on.completed(250)
});
WHEN("each int is mapped to the strings"){
auto res = w.start(
[&]() {
return xs
| rxo::flat_map(
[&](int){
return ys;},
[](int, std::string s){
return s;})
// forget type to workaround lambda deduction bug on msvc 2013
| rxo::as_dynamic();
}
);
THEN("the output contains strings repeated for each int"){
auto required = rxu::to_vector({
s_on.next(350, "foo"),
s_on.next(400, "bar"),
s_on.next(450, "baz"),
s_on.next(450, "foo"),
s_on.next(500, "qux"),
s_on.next(500, "bar"),
s_on.next(550, "baz"),
s_on.next(550, "foo"),
s_on.next(600, "qux"),
s_on.next(600, "bar"),
s_on.next(650, "baz"),
s_on.next(650, "foo"),
s_on.next(700, "qux"),
s_on.next(700, "bar"),
s_on.next(750, "baz"),
s_on.next(800, "qux"),
s_on.completed(850)
});
auto actual = res.get_observer().messages();
REQUIRE(required == actual);
}
THEN("there was one subscription and one unsubscription to the ints"){
auto required = rxu::to_vector({
i_on.subscribe(200, 700)
});
auto actual = xs.subscriptions();
REQUIRE(required == actual);
}
THEN("there were four subscription and unsubscription to the strings"){
auto required = rxu::to_vector({
s_on.subscribe(300, 550),
s_on.subscribe(400, 650),
s_on.subscribe(500, 750),
s_on.subscribe(600, 850)
});
auto actual = ys.subscriptions();
REQUIRE(required == actual);
}
}
}
}
SCENARIO("merge_transform completes", "[merge_transform][transform][map][operators]"){
GIVEN("two cold observables. one of ints. one of strings."){
auto sc = rxsc::make_test();
auto w = sc.create_worker();
const rxsc::test::messages<int> i_on;
const rxsc::test::messages<std::string> s_on;
auto xs = sc.make_cold_observable({
i_on.next(100, 4),
i_on.next(200, 2),
i_on.next(300, 3),
i_on.next(400, 1),
i_on.completed(500)
});
auto ys = sc.make_cold_observable({
s_on.next(50, "foo"),
s_on.next(100, "bar"),
s_on.next(150, "baz"),
s_on.next(200, "qux"),
s_on.completed(250)
});
WHEN("each int is mapped to the strings"){
auto res = w.start(
[&]() {
return xs
| rxo::merge_transform(
[&](int){
return ys;},
[](int, std::string s){
return s;})
// forget type to workaround lambda deduction bug on msvc 2013
| rxo::as_dynamic();
}
);
THEN("the output contains strings repeated for each int"){
auto required = rxu::to_vector({
s_on.next(350, "foo"),
s_on.next(400, "bar"),
s_on.next(450, "baz"),
s_on.next(450, "foo"),
s_on.next(500, "qux"),
s_on.next(500, "bar"),
s_on.next(550, "baz"),
s_on.next(550, "foo"),
s_on.next(600, "qux"),
s_on.next(600, "bar"),
s_on.next(650, "baz"),
s_on.next(650, "foo"),
s_on.next(700, "qux"),
s_on.next(700, "bar"),
s_on.next(750, "baz"),
s_on.next(800, "qux"),
s_on.completed(850)
});
auto actual = res.get_observer().messages();
REQUIRE(required == actual);
}
THEN("there was one subscription and one unsubscription to the ints"){
auto required = rxu::to_vector({
i_on.subscribe(200, 700)
});
auto actual = xs.subscriptions();
REQUIRE(required == actual);
}
THEN("there were four subscription and unsubscription to the strings"){
auto required = rxu::to_vector({
s_on.subscribe(300, 550),
s_on.subscribe(400, 650),
s_on.subscribe(500, 750),
s_on.subscribe(600, 850)
});
auto actual = ys.subscriptions();
REQUIRE(required == actual);
}
}
WHEN("each int is mapped to the strings with coordinator"){
auto res = w.start(
[&]() {
return xs
.merge_transform(
[&](int){
return ys;},
[](int, std::string s){
return s;},
rx::identity_current_thread())
// forget type to workaround lambda deduction bug on msvc 2013
.as_dynamic();
}
);
THEN("the output contains strings repeated for each int"){
auto required = rxu::to_vector({
s_on.next(350, "foo"),
s_on.next(400, "bar"),
s_on.next(450, "baz"),
s_on.next(450, "foo"),
s_on.next(500, "qux"),
s_on.next(500, "bar"),
s_on.next(550, "baz"),
s_on.next(550, "foo"),
s_on.next(600, "qux"),
s_on.next(600, "bar"),
s_on.next(650, "baz"),
s_on.next(650, "foo"),
s_on.next(700, "qux"),
s_on.next(700, "bar"),
s_on.next(750, "baz"),
s_on.next(800, "qux"),
s_on.completed(850)
});
auto actual = res.get_observer().messages();
REQUIRE(required == actual);
}
THEN("there was one subscription and one unsubscription to the ints"){
auto required = rxu::to_vector({
i_on.subscribe(200, 700)
});
auto actual = xs.subscriptions();
REQUIRE(required == actual);
}
THEN("there were four subscription and unsubscription to the strings"){
auto required = rxu::to_vector({
s_on.subscribe(300, 550),
s_on.subscribe(400, 650),
s_on.subscribe(500, 750),
s_on.subscribe(600, 850)
});
auto actual = ys.subscriptions();
REQUIRE(required == actual);
}
}
}
}
SCENARIO("merge_transform source never ends", "[merge_transform][transform][map][operators]"){
GIVEN("two cold observables. one of ints. one of strings."){
auto sc = rxsc::make_test();
auto w = sc.create_worker();
const rxsc::test::messages<int> i_on;
const rxsc::test::messages<std::string> s_on;
auto xs = sc.make_cold_observable({
i_on.next(100, 4),
i_on.next(200, 2),
i_on.next(300, 3),
i_on.next(400, 1),
i_on.next(500, 5),
i_on.next(700, 0)
});
auto ys = sc.make_cold_observable({
s_on.next(50, "foo"),
s_on.next(100, "bar"),
s_on.next(150, "baz"),
s_on.next(200, "qux"),
s_on.completed(250)
});
WHEN("each int is mapped to the strings"){
auto res = w.start(
[&]() {
return xs
.merge_transform([&](int){return ys;}, [](int, std::string s){return s;})
// forget type to workaround lambda deduction bug on msvc 2013
.as_dynamic();
}
);
THEN("the output contains strings repeated for each int"){
auto required = rxu::to_vector({
s_on.next(350, "foo"),
s_on.next(400, "bar"),
s_on.next(450, "baz"),
s_on.next(450, "foo"),
s_on.next(500, "qux"),
s_on.next(500, "bar"),
s_on.next(550, "baz"),
s_on.next(550, "foo"),
s_on.next(600, "qux"),
s_on.next(600, "bar"),
s_on.next(650, "baz"),
s_on.next(650, "foo"),
s_on.next(700, "qux"),
s_on.next(700, "bar"),
s_on.next(750, "baz"),
s_on.next(750, "foo"),
s_on.next(800, "qux"),
s_on.next(800, "bar"),
s_on.next(850, "baz"),
s_on.next(900, "qux"),
s_on.next(950, "foo")
});
auto actual = res.get_observer().messages();
REQUIRE(required == actual);
}
THEN("there was one subscription and one unsubscription to the ints"){
auto required = rxu::to_vector({
i_on.subscribe(200, 1000)
});
auto actual = xs.subscriptions();
REQUIRE(required == actual);
}
THEN("there were four subscription and unsubscription to the strings"){
auto required = rxu::to_vector({
s_on.subscribe(300, 550),
s_on.subscribe(400, 650),
s_on.subscribe(500, 750),
s_on.subscribe(600, 850),
s_on.subscribe(700, 950),
s_on.subscribe(900, 1000)
});
auto actual = ys.subscriptions();
REQUIRE(required == actual);
}
}
}
}
SCENARIO("merge_transform inner error", "[merge_transform][transform][map][operators]"){
GIVEN("two cold observables. one of ints. one of strings."){
auto sc = rxsc::make_test();
auto w = sc.create_worker();
const rxsc::test::messages<int> i_on;
const rxsc::test::messages<std::string> s_on;
auto xs = sc.make_cold_observable({
i_on.next(100, 4),
i_on.next(200, 2),
i_on.next(300, 3),
i_on.next(400, 1),
i_on.completed(500)
});
std::runtime_error ex("filter on_error from inner source");
auto ys = sc.make_cold_observable({
s_on.next(55, "foo"),
s_on.next(104, "bar"),
s_on.next(153, "baz"),
s_on.next(202, "qux"),
s_on.error(301, ex)
});
WHEN("each int is mapped to the strings"){
auto res = w.start(
[&]() {
return xs
.merge_transform([&](int){return ys;}, [](int, std::string s){return s;})
// forget type to workaround lambda deduction bug on msvc 2013
.as_dynamic();
}
);
THEN("the output contains strings repeated for each int"){
auto required = rxu::to_vector({
s_on.next(355, "foo"),
s_on.next(404, "bar"),
s_on.next(453, "baz"),
s_on.next(455, "foo"),
s_on.next(502, "qux"),
s_on.next(504, "bar"),
s_on.next(553, "baz"),
s_on.next(555, "foo"),
s_on.error(601, ex)
});
auto actual = res.get_observer().messages();
REQUIRE(required == actual);
}
THEN("there was one subscription and one unsubscription to the ints"){
auto required = rxu::to_vector({
i_on.subscribe(200, 601)
});
auto actual = xs.subscriptions();
REQUIRE(required == actual);
}
THEN("there were four subscription and unsubscription to the strings"){
auto required = rxu::to_vector({
s_on.subscribe(300, 601),
s_on.subscribe(400, 601),
s_on.subscribe(500, 601),
s_on.subscribe(600, 601)
});
auto actual = ys.subscriptions();
REQUIRE(required == actual);
}
}
}
}
SCENARIO("merge_transform, no result selector, no coordination", "[merge_transform][transform][map][operators]"){
GIVEN("two cold observables. one of ints. one of strings."){
auto sc = rxsc::make_test();
auto w = sc.create_worker();
const rxsc::test::messages<int> i_on;
const rxsc::test::messages<std::string> s_on;
auto xs = sc.make_cold_observable({
i_on.next(100, 4),
i_on.next(200, 2),
i_on.next(300, 3),
i_on.next(400, 1),
i_on.completed(500)
});
auto ys = sc.make_cold_observable({
s_on.next(50, "foo"),
s_on.next(100, "bar"),
s_on.next(150, "baz"),
s_on.next(200, "qux"),
s_on.completed(250)
});
WHEN("each int is mapped to the strings"){
auto res = w.start(
[&]() {
return xs
.merge_transform(
[&](int){
return ys;})
// forget type to workaround lambda deduction bug on msvc 2013
.as_dynamic();
}
);
THEN("the output contains strings repeated for each int"){
auto required = rxu::to_vector({
s_on.next(350, "foo"),
s_on.next(400, "bar"),
s_on.next(450, "baz"),
s_on.next(450, "foo"),
s_on.next(500, "qux"),
s_on.next(500, "bar"),
s_on.next(550, "baz"),
s_on.next(550, "foo"),
s_on.next(600, "qux"),
s_on.next(600, "bar"),
s_on.next(650, "baz"),
s_on.next(650, "foo"),
s_on.next(700, "qux"),
s_on.next(700, "bar"),
s_on.next(750, "baz"),
s_on.next(800, "qux"),
s_on.completed(850)
});
auto actual = res.get_observer().messages();
REQUIRE(required == actual);
}
THEN("there was one subscription and one unsubscription to the ints"){
auto required = rxu::to_vector({
i_on.subscribe(200, 700)
});
auto actual = xs.subscriptions();
REQUIRE(required == actual);
}
THEN("there were four subscription and unsubscription to the strings"){
auto required = rxu::to_vector({
s_on.subscribe(300, 550),
s_on.subscribe(400, 650),
s_on.subscribe(500, 750),
s_on.subscribe(600, 850)
});
auto actual = ys.subscriptions();
REQUIRE(required == actual);
}
}
}
}
SCENARIO("merge_transform, no result selector, with coordination", "[merge_transform][transform][map][operators]"){
GIVEN("two cold observables. one of ints. one of strings."){
auto sc = rxsc::make_test();
auto w = sc.create_worker();
const rxsc::test::messages<int> i_on;
const rxsc::test::messages<std::string> s_on;
auto xs = sc.make_cold_observable({
i_on.next(100, 4),
i_on.next(200, 2),
i_on.next(300, 3),
i_on.next(400, 1),
i_on.completed(500)
});
auto ys = sc.make_cold_observable({
s_on.next(50, "foo"),
s_on.next(100, "bar"),
s_on.next(150, "baz"),
s_on.next(200, "qux"),
s_on.completed(250)
});
WHEN("each int is mapped to the strings"){
auto res = w.start(
[&]() {
return xs
.merge_transform(
[&](int){
return ys;},
rx::identity_current_thread())
// forget type to workaround lambda deduction bug on msvc 2013
.as_dynamic();
}
);
THEN("the output contains strings repeated for each int"){
auto required = rxu::to_vector({
s_on.next(350, "foo"),
s_on.next(400, "bar"),
s_on.next(450, "baz"),
s_on.next(450, "foo"),
s_on.next(500, "qux"),
s_on.next(500, "bar"),
s_on.next(550, "baz"),
s_on.next(550, "foo"),
s_on.next(600, "qux"),
s_on.next(600, "bar"),
s_on.next(650, "baz"),
s_on.next(650, "foo"),
s_on.next(700, "qux"),
s_on.next(700, "bar"),
s_on.next(750, "baz"),
s_on.next(800, "qux"),
s_on.completed(850)
});
auto actual = res.get_observer().messages();
REQUIRE(required == actual);
}
THEN("there was one subscription and one unsubscription to the ints"){
auto required = rxu::to_vector({
i_on.subscribe(200, 700)
});
auto actual = xs.subscriptions();
REQUIRE(required == actual);
}
THEN("there were four subscription and unsubscription to the strings"){
auto required = rxu::to_vector({
s_on.subscribe(300, 550),
s_on.subscribe(400, 650),
s_on.subscribe(500, 750),
s_on.subscribe(600, 850)
});
auto actual = ys.subscriptions();
REQUIRE(required == actual);
}
}
}
}