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