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#include "../test.h"
SCENARIO("pairwise", "[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;
long invoked = 0;
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, &invoked]() {
return xs
.pairwise()
// forget type to workaround lambda deduction bug on msvc 2013
.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);
}
}
}
}
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