| #include "../test.h" |
| #include <rxcpp/operators/rx-distinct_until_changed.hpp> |
| |
| SCENARIO("distinct_until_changed - never", "[distinct_until_changed][operators]"){ |
| GIVEN("a source"){ |
| auto sc = rxsc::make_test(); |
| auto w = sc.create_worker(); |
| const rxsc::test::messages<int> on; |
| |
| auto xs = sc.make_hot_observable({ |
| on.next(150, 1) |
| }); |
| |
| WHEN("distinct values are taken"){ |
| |
| auto res = w.start( |
| [xs]() { |
| return xs | rxo::distinct_until_changed(); |
| } |
| ); |
| |
| THEN("the output is empty"){ |
| auto required = std::vector<rxsc::test::messages<int>::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("distinct_until_changed - empty", "[distinct_until_changed][operators]"){ |
| GIVEN("a source"){ |
| auto sc = rxsc::make_test(); |
| auto w = sc.create_worker(); |
| const rxsc::test::messages<int> on; |
| |
| auto xs = sc.make_hot_observable({ |
| on.next(150, 1), |
| on.completed(250) |
| }); |
| |
| WHEN("distinct values are taken"){ |
| |
| auto res = w.start( |
| [xs]() { |
| return xs.distinct_until_changed(); |
| } |
| ); |
| |
| THEN("the output only contains complete message"){ |
| auto required = rxu::to_vector({ |
| on.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("distinct_until_changed - return", "[distinct_until_changed][operators]"){ |
| GIVEN("a source"){ |
| auto sc = rxsc::make_test(); |
| auto w = sc.create_worker(); |
| const rxsc::test::messages<int> on; |
| |
| auto xs = sc.make_hot_observable({ |
| on.next(150, 1), |
| on.next(210, 2), |
| on.completed(250) |
| }); |
| |
| WHEN("distinct values are taken"){ |
| |
| auto res = w.start( |
| [xs]() { |
| return xs.distinct_until_changed(); |
| } |
| ); |
| |
| THEN("the output only contains distinct items sent while subscribed"){ |
| auto required = rxu::to_vector({ |
| on.next(210, 2), |
| on.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("distinct_until_changed - throw", "[distinct_until_changed][operators]"){ |
| GIVEN("a source"){ |
| auto sc = rxsc::make_test(); |
| auto w = sc.create_worker(); |
| const rxsc::test::messages<int> on; |
| |
| std::runtime_error ex("distinct_until_changed on_error from source"); |
| |
| auto xs = sc.make_hot_observable({ |
| on.next(150, 1), |
| on.error(250, ex) |
| }); |
| |
| WHEN("distinct values are taken"){ |
| |
| auto res = w.start( |
| [xs]() { |
| return xs.distinct_until_changed(); |
| } |
| ); |
| |
| THEN("the output only contains only error"){ |
| auto required = rxu::to_vector({ |
| on.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); |
| } |
| |
| } |
| } |
| } |
| |
| SCENARIO("distinct_until_changed - all changes", "[distinct_until_changed][operators]"){ |
| GIVEN("a source"){ |
| auto sc = rxsc::make_test(); |
| auto w = sc.create_worker(); |
| const rxsc::test::messages<int> on; |
| |
| auto xs = sc.make_hot_observable({ |
| on.next(150, 1), |
| on.next(210, 2), |
| on.next(220, 3), |
| on.next(230, 4), |
| on.next(240, 5), |
| on.completed(250) |
| }); |
| |
| WHEN("distinct values are taken"){ |
| |
| auto res = w.start( |
| [xs]() { |
| return xs.distinct_until_changed(); |
| } |
| ); |
| |
| THEN("the output only contains distinct items sent while subscribed"){ |
| auto required = rxu::to_vector({ |
| on.next(210, 2), |
| on.next(220, 3), |
| on.next(230, 4), |
| on.next(240, 5), |
| on.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("distinct_until_changed - all same", "[distinct_until_changed][operators]"){ |
| GIVEN("a source"){ |
| auto sc = rxsc::make_test(); |
| auto w = sc.create_worker(); |
| const rxsc::test::messages<int> on; |
| |
| auto xs = sc.make_hot_observable({ |
| on.next(150, 1), |
| on.next(210, 2), |
| on.next(220, 2), |
| on.next(230, 2), |
| on.next(240, 2), |
| on.completed(250) |
| }); |
| |
| WHEN("distinct values are taken"){ |
| |
| auto res = w.start( |
| [xs]() { |
| return xs.distinct_until_changed(); |
| } |
| ); |
| |
| THEN("the output only contains distinct items sent while subscribed"){ |
| auto required = rxu::to_vector({ |
| on.next(210, 2), |
| on.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("distinct_until_changed - some changes", "[distinct_until_changed][operators]"){ |
| GIVEN("a source"){ |
| auto sc = rxsc::make_test(); |
| auto w = sc.create_worker(); |
| const rxsc::test::messages<int> on; |
| |
| auto xs = sc.make_hot_observable({ |
| on.next(150, 1), |
| on.next(210, 2), //* |
| on.next(215, 3), //* |
| on.next(220, 3), |
| on.next(225, 2), //* |
| on.next(230, 2), |
| on.next(230, 1), //* |
| on.next(240, 2), //* |
| on.completed(250) |
| }); |
| |
| WHEN("distinct values are taken"){ |
| |
| auto res = w.start( |
| [xs]() { |
| return xs.distinct_until_changed(); |
| } |
| ); |
| |
| THEN("the output only contains distinct items sent while subscribed"){ |
| auto required = rxu::to_vector({ |
| on.next(210, 2), //* |
| on.next(215, 3), //* |
| on.next(225, 2), //* |
| on.next(230, 1), //* |
| on.next(240, 2), //* |
| on.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); |
| } |
| |
| } |
| } |
| } |
| |
| struct A { |
| int i; |
| |
| bool operator!=(const A& a) const { |
| return i != a.i; |
| } |
| |
| bool operator==(const A& a) const { |
| return i == a.i; |
| } |
| }; |
| |
| SCENARIO("distinct_until_changed - custom type", "[distinct_until_changed][operators]"){ |
| GIVEN("a source"){ |
| auto sc = rxsc::make_test(); |
| auto w = sc.create_worker(); |
| const rxsc::test::messages<A> on; |
| |
| auto xs = sc.make_hot_observable({ |
| on.next(150, A{1}), |
| on.next(210, A{2}), //* |
| on.next(215, A{3}), //* |
| on.next(220, A{3}), |
| on.next(225, A{2}), //* |
| on.next(230, A{2}), |
| on.next(230, A{1}), //* |
| on.next(240, A{2}), //* |
| on.completed(250) |
| }); |
| |
| WHEN("distinct values are taken"){ |
| |
| auto res = w.start( |
| [xs]() { |
| return xs.distinct_until_changed(); |
| } |
| ); |
| |
| THEN("the output only contains distinct items sent while subscribed"){ |
| auto required = rxu::to_vector({ |
| on.next(210, A{2}), //* |
| on.next(215, A{3}), //* |
| on.next(225, A{2}), //* |
| on.next(230, A{1}), //* |
| on.next(240, A{2}), //* |
| on.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("distinct_until_changed - custom predicate", "[distinct_until_changed][operators]"){ |
| GIVEN("a source"){ |
| auto sc = rxsc::make_test(); |
| auto w = sc.create_worker(); |
| const rxsc::test::messages<int> on; |
| |
| auto xs = sc.make_hot_observable({ |
| on.next(150, 1), |
| on.next(210, 2), //* |
| on.next(215, 3), //* |
| on.next(220, 3), |
| on.next(225, 2), //* |
| on.next(230, 2), |
| on.next(230, 1), //* |
| on.next(240, 2), //* |
| on.completed(250) |
| }); |
| |
| WHEN("distinct values are taken"){ |
| |
| auto res = w.start( |
| [xs]() { |
| return xs |
| .distinct_until_changed([](int x, int y) { return x == y; }) |
| // forget type to workaround lambda deduction bug on msvc 2013 |
| .as_dynamic(); |
| } |
| ); |
| |
| THEN("the output only contains distinct items sent while subscribed"){ |
| auto required = rxu::to_vector({ |
| on.next(210, 2), //* |
| on.next(215, 3), //* |
| on.next(225, 2), //* |
| on.next(230, 1), //* |
| on.next(240, 2), //* |
| on.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); |
| } |
| |
| } |
| } |
| } |