8000 Add std::ranges::view test for coro::when_all by jbaldwin · Pull Request #212 · jbaldwin/libcoro · GitHub
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Add std::ranges::view test for coro::when_all #212

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merged 1 commit into from
Nov 19, 2023
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Add std::ranges::view test for coro::when_all #212

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34 changes: 33 additions & 1 deletion test/test_when_all.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@
#include <coro/coro.hpp>

#include <list>
#include <ranges>
#include <vector>

TEST_CASE("when_all single task with tuple container", "[when_all]")
Expand Down Expand Up @@ -137,4 +138,35 @@ TEST_CASE("when_all inside coroutine", "[when_all]")
auto result = coro::sync_wait(runner_task());

REQUIRE(result == (1 + 2 + 3));
}
}

TEST_CASE("when_all use std::ranges::view", "[when_all]")
{
coro::thread_pool tp{};

auto make_task = [&](uint64_t amount) -> coro::task<uint64_t>
{
co_await tp.schedule();
co_return amount;
};

auto make_runner_task = [&]() -> coro::task<uint64_t>
{
std::vector<coro::task<uint64_t>> tasks;
tasks.emplace_back(make_task(1));
tasks.emplace_back(make_task(2));
tasks.emplace_back(make_task(3));

auto output_tasks = co_await coro::when_all(std::ranges::views::all(tasks));

uint64_t result{0};
for (const auto& task : output_tasks)
{
result += task.return_value();
}
co_return result;
};

auto result = coro::sync_wait(make_runner_task());
REQUIRE(result == (1 + 2 + 3));
}
0