102 lines
3.7 KiB
C++
102 lines
3.7 KiB
C++
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#include "rxcpp/rx.hpp"
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#include "rxcpp/rx-test.hpp"
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#include "catch.hpp"
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SCENARIO("subscribe by subscriber"){
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printf("//! [subscribe by subscriber]\n");
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auto subscriber = rxcpp::make_subscriber<int>(
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[](int v){printf("OnNext: %d\n", v);},
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[](){printf("OnCompleted\n");});
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auto values = rxcpp::observable<>::range(1, 3);
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values.subscribe(subscriber);
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printf("//! [subscribe by subscriber]\n");
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}
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SCENARIO("subscribe by observer"){
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printf("//! [subscribe by observer]\n");
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auto subscriber = rxcpp::make_subscriber<int>(
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[](int v){printf("OnNext: %d\n", v);},
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[](){printf("OnCompleted\n");});
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auto values1 = rxcpp::observable<>::range(1, 3);
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auto values2 = rxcpp::observable<>::range(4, 6);
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values1.subscribe(subscriber.get_observer());
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values2.subscribe(subscriber.get_observer());
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printf("//! [subscribe by observer]\n");
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}
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SCENARIO("subscribe by on_next"){
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printf("//! [subscribe by on_next]\n");
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auto values = rxcpp::observable<>::range(1, 3);
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values.subscribe(
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[](int v){printf("OnNext: %d\n", v);});
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printf("//! [subscribe by on_next]\n");
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}
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SCENARIO("subscribe by on_next and on_error"){
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printf("//! [subscribe by on_next and on_error]\n");
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auto values = rxcpp::observable<>::range(1, 3).
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concat(rxcpp::observable<>::error<int>(std::runtime_error("Error from source")));
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values.subscribe(
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[](int v){printf("OnNext: %d\n", v);},
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[](std::exception_ptr ep){
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try {std::rethrow_exception(ep);}
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catch (const std::exception& ex) {
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printf("OnError: %s\n", ex.what());
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}
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});
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printf("//! [subscribe by on_next and on_error]\n");
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}
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SCENARIO("subscribe by on_next and on_completed"){
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printf("//! [subscribe by on_next and on_completed]\n");
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auto values = rxcpp::observable<>::range(1, 3);
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values.subscribe(
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[](int v){printf("OnNext: %d\n", v);},
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[](){printf("OnCompleted\n");});
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printf("//! [subscribe by on_next and on_completed]\n");
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}
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SCENARIO("subscribe by subscription, on_next, and on_completed"){
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printf("//! [subscribe by subscription, on_next, and on_completed]\n");
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auto subscription = rxcpp::composite_subscription();
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auto values = rxcpp::observable<>::range(1, 5);
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values.subscribe(
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subscription,
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[&subscription](int v){
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printf("OnNext: %d\n", v);
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if (v == 3)
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subscription.unsubscribe();
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},
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[](){printf("OnCompleted\n");});
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printf("//! [subscribe by subscription, on_next, and on_completed]\n");
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}
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SCENARIO("subscribe by on_next, on_error, and on_completed"){
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printf("//! [subscribe by on_next, on_error, and on_completed]\n");
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auto values = rxcpp::observable<>::range(1, 3).
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concat(rxcpp::observable<>::error<int>(std::runtime_error("Error from source")));
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values.subscribe(
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[](int v){printf("OnNext: %d\n", v);},
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[](std::exception_ptr ep){
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try {std::rethrow_exception(ep);}
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catch (const std::exception& ex) {
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printf("OnError: %s\n", ex.what());
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}
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},
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[](){printf("OnCompleted\n");});
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printf("//! [subscribe by on_next, on_error, and on_completed]\n");
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}
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SCENARIO("subscribe unsubscribe"){
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printf("//! [subscribe unsubscribe]\n");
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auto values = rxcpp::observable<>::range(1, 3).
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concat(rxcpp::observable<>::never<int>()).
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finally([](){printf("The final action\n");});
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auto subscription = values.subscribe(
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[](int v){printf("OnNext: %d\n", v);},
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[](){printf("OnCompleted\n");});
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subscription.unsubscribe();
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printf("//! [subscribe unsubscribe]\n");
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}
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