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#include "../test.h"
SCENARIO("all emits true if every item emitted by the source observable evaluated as true", "[all][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_all;
auto xs = sc.make_hot_observable({
on.next(150, 1),
on.next(210, 2),
on.next(220, 2),
on.completed(250)
});
WHEN("a predicate function is passed to the all operator") {
auto res = w.start(
[xs]() {
return xs
.all([](int n) { return n == 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_all.next(250, true),
on_all.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("all emits false if any item emitted by the source observable evaluated as false", "[all][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_all;
auto xs = sc.make_hot_observable({
on.next(150, 1),
on.next(210, 2),
on.next(220, 3),
on.completed(250)
});
WHEN("a predicate function is passed to the all operator") {
auto res = w.start(
[xs]() {
return xs
.all([](int n) { return n == 2; })
.as_dynamic(); // forget type to workaround lambda deduction bug on msvc 2013
}
);
THEN("the output only contains false") {
auto required = rxu::to_vector({
on_all.next(220, false),
on_all.completed(220)
});
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, 220)
});
auto actual = xs.subscriptions();
REQUIRE(required == actual);
}
}
}
}
SCENARIO("all emits true if the source observable is empty", "[all][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_all;
auto xs = sc.make_hot_observable({
on.completed(250)
});
WHEN("a predicate function is passed to the all operator") {
auto res = w.start(
[xs]() {
return xs
.all([](int n) { return n == 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_all.next(250, true),
on_all.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("all never emits if the source observable never emits any items", "[all][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_all;
auto xs = sc.make_hot_observable({
on.next(150, 1)
});
WHEN("a predicate function is passed to the all operator") {
auto res = w.start(
[xs]() {
return xs
.all([](int n) { return n == 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("all emits an error if the source observable emit an error", "[all][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_all;
std::runtime_error ex("all on_error from source");
auto xs = sc.make_hot_observable({
on.next(150, 1),
on.error(250, ex)
});
WHEN("a predicate function is passed to the all operator") {
auto res = w.start(
[xs]() {
return xs
.all([](int n) { return n == 2; })
.as_dynamic(); // forget type to workaround lambda deduction bug on msvc 2013
}
);
THEN("the output only contains an error") {
auto required = rxu::to_vector({
on_all.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);
}
}
}
}
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