81 lines
2.7 KiB
C++
81 lines
2.7 KiB
C++
#include "../test.h"
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#include "rxcpp/operators/rx-pairwise.hpp"
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SCENARIO("pairwise - enough items to create pairs", "[pairwise][operators]") {
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GIVEN("a cold observable of n ints") {
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auto sc = rxsc::make_test();
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auto w = sc.create_worker();
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const rxsc::test::messages<int> on;
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const rxsc::test::messages<std::tuple<int, int>> on_pairwise;
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auto xs = sc.make_cold_observable({
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on.next(180, 1),
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on.next(210, 2),
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on.next(240, 3),
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on.next(290, 4),
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on.next(350, 5),
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on.completed(400),
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});
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WHEN("taken pairwise") {
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auto res = w.start(
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[xs]() {
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return xs
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| rxo::pairwise()
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// forget type to workaround lambda deduction bug on msvc 2013
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| rxo::as_dynamic();
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}
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);
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THEN("the output contains n-1 tuples of ints"){
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auto delay = rxcpp::schedulers::test::subscribed_time;
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auto required = rxu::to_vector({
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on_pairwise.next(210 + delay, std::make_tuple(1, 2)),
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on_pairwise.next(240 + delay, std::make_tuple(2, 3)),
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on_pairwise.next(290 + delay, std::make_tuple(3, 4)),
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on_pairwise.next(350 + delay, std::make_tuple(4, 5)),
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on_pairwise.completed(400 + delay)
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});
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auto actual = res.get_observer().messages();
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REQUIRE(required == actual);
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}
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}
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}
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}
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SCENARIO("pairwise - not enough items to create a pair", "[pairwise][operators]") {
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GIVEN("a cold observable of 1 ints") {
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auto sc = rxsc::make_test();
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auto w = sc.create_worker();
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const rxsc::test::messages<int> on;
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const rxsc::test::messages<std::tuple<int, int>> on_pairwise;
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auto xs = sc.make_cold_observable({
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on.next(180, 1),
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on.completed(400),
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});
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WHEN("taken pairwise") {
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auto res = w.start(
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[xs]() {
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return xs
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.pairwise()
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// forget type to workaround lambda deduction bug on msvc 2013
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.as_dynamic();
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}
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);
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THEN("the output contains no tuples of ints"){
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auto delay = rxcpp::schedulers::test::subscribed_time;
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auto required = rxu::to_vector({
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on_pairwise.completed(400 + delay)
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});
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auto actual = res.get_observer().messages();
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REQUIRE(required == actual);
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}
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}
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}
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}
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