| #include "../test.h" |
| #include <rxcpp/operators/rx-any.hpp> |
| |
| SCENARIO("contains emits true if an item satisfies the given condition", "[contains][operators]"){ |
| GIVEN("a source") { |
| auto sc = rxsc::make_test(); |
| auto w = sc.create_worker(); |
| const rxsc::test::messages<int> on; |
| const rxsc::test::messages<bool> on_contains; |
| |
| auto xs = sc.make_hot_observable({ |
| on.next(150, 1), |
| on.next(210, 2), |
| on.completed(250) |
| }); |
| |
| WHEN("invoked with a predicate"){ |
| |
| auto res = w.start( |
| [xs]() { |
| return xs |
| | rxo::contains(2) |
| | rxo::as_dynamic(); // forget type to workaround lambda deduction bug on msvc 2013 |
| } |
| ); |
| |
| THEN("the output only contains true"){ |
| auto required = rxu::to_vector({ |
| on_contains.next(210, true), |
| on_contains.completed(210) |
| }); |
| 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(200, 210) |
| }); |
| auto actual = xs.subscriptions(); |
| REQUIRE(required == actual); |
| } |
| |
| } |
| } |
| } |
| |
| SCENARIO("contains emits false if no item satisfies the given condition", "[contains][operators]"){ |
| GIVEN("a source") { |
| auto sc = rxsc::make_test(); |
| auto w = sc.create_worker(); |
| const rxsc::test::messages<int> on; |
| const rxsc::test::messages<bool> on_contains; |
| |
| auto xs = sc.make_hot_observable({ |
| on.next(150, 1), |
| on.next(210, 2), |
| on.completed(250) |
| }); |
| |
| WHEN("invoked with a predicate"){ |
| |
| auto res = w.start( |
| [xs]() { |
| return xs |
| .contains(20) |
| .as_dynamic(); // forget type to workaround lambda deduction bug on msvc 2013 |
| } |
| ); |
| |
| THEN("the output only contains true"){ |
| auto required = rxu::to_vector({ |
| on_contains.next(250, false), |
| on_contains.completed(250) |
| }); |
| 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(200, 250) |
| }); |
| auto actual = xs.subscriptions(); |
| REQUIRE(required == actual); |
| } |
| |
| } |
| } |
| } |
| |
| SCENARIO("contains emits false if the source observable is empty", "[contains][operators]"){ |
| GIVEN("a source") { |
| auto sc = rxsc::make_test(); |
| auto w = sc.create_worker(); |
| const rxsc::test::messages<int> on; |
| const rxsc::test::messages<bool> on_contains; |
| |
| auto xs = sc.make_hot_observable({ |
| on.completed(250) |
| }); |
| |
| WHEN("invoked with a predicate"){ |
| |
| auto res = w.start( |
| [xs]() { |
| return xs |
| .contains(2) |
| .as_dynamic(); // forget type to workaround lambda deduction bug on msvc 2013 |
| } |
| ); |
| |
| THEN("the output only contains true"){ |
| auto required = rxu::to_vector({ |
| on_contains.next(250, false), |
| on_contains.completed(250) |
| }); |
| 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(200, 250) |
| }); |
| auto actual = xs.subscriptions(); |
| REQUIRE(required == actual); |
| } |
| |
| } |
| } |
| } |
| SCENARIO("contains never emits if the source observable never emits any items", "[contains][operators]"){ |
| GIVEN("a source"){ |
| auto sc = rxsc::make_test(); |
| auto w = sc.create_worker(); |
| const rxsc::test::messages<int> on; |
| const rxsc::test::messages<bool> on_contains; |
| |
| auto xs = sc.make_hot_observable({ |
| on.next(150, 1) |
| }); |
| |
| WHEN("invoked with a predicate"){ |
| |
| auto res = w.start( |
| [xs]() { |
| return xs |
| .contains(2) |
| .as_dynamic(); // forget type to workaround lambda deduction bug on msvc 2013 |
| } |
| ); |
| |
| THEN("the output is empty"){ |
| auto required = std::vector<rxsc::test::messages<bool>::recorded_type>(); |
| 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(200, 1000) |
| }); |
| auto actual = xs.subscriptions(); |
| REQUIRE(required == actual); |
| } |
| } |
| } |
| } |
| |
| SCENARIO("contains emits an error", "[contains][operators]"){ |
| GIVEN("a source"){ |
| auto sc = rxsc::make_test(); |
| auto w = sc.create_worker(); |
| const rxsc::test::messages<int> on; |
| const rxsc::test::messages<bool> on_contains; |
| |
| std::runtime_error ex("contains on_error from source"); |
| |
| auto xs = sc.make_hot_observable({ |
| on.next(150, 1), |
| on.error(250, ex) |
| }); |
| |
| WHEN("invoked with a predicate"){ |
| |
| auto res = w.start( |
| [xs]() { |
| return xs |
| .contains(2) |
| .as_dynamic(); // forget type to workaround lambda deduction bug on msvc 2013 |
| } |
| ); |
| |
| THEN("the output only contains only error"){ |
| auto required = rxu::to_vector({ |
| on_contains.error(250, ex) |
| }); |
| 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(200, 250) |
| }); |
| auto actual = xs.subscriptions(); |
| REQUIRE(required == actual); |
| } |
| |
| } |
| } |
| } |