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78b6e19927
* Update docs on io_scheduler for inline processing Support gcc 10.3.1 (fedora 33 updated) Update ci.yml to run fedora 32,33,34 and support both gcc 10.2.1 and 10.3.1 * fedora 32 -> gcc-c++ drop version * Update ci.yml and test_latch.cpp
110 lines
2.2 KiB
C++
110 lines
2.2 KiB
C++
#include "catch.hpp"
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#include <coro/coro.hpp>
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#include <chrono>
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#include <thread>
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TEST_CASE("latch count=0", "[latch]")
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{
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coro::latch l{0};
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auto make_task = [&]() -> coro::task<uint64_t> {
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co_await l;
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co_return 42;
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};
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auto task = make_task();
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task.resume();
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REQUIRE(task.is_ready()); // The latch never waits due to zero count.
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REQUIRE(task.promise().return_value() == 42);
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}
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TEST_CASE("latch count=1", "[latch]")
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{
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coro::latch l{1};
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auto make_task = [&]() -> coro::task<uint64_t> {
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auto workers = l.remaining();
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co_await l;
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co_return workers;
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};
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auto task = make_task();
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task.resume();
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REQUIRE_FALSE(task.is_ready());
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l.count_down();
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REQUIRE(task.is_ready());
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REQUIRE(task.promise().return_value() == 1);
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}
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TEST_CASE("latch count=1 count_down=5", "[latch]")
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{
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coro::latch l{1};
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auto make_task = [&]() -> coro::task<uint64_t> {
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auto workers = l.remaining();
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co_await l;
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co_return workers;
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};
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auto task = make_task();
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task.resume();
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REQUIRE_FALSE(task.is_ready());
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l.count_down(5);
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REQUIRE(task.is_ready());
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REQUIRE(task.promise().return_value() == 1);
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}
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TEST_CASE("latch count=5 count_down=1 x5", "[latch]")
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{
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coro::latch l{5};
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auto make_task = [&]() -> coro::task<uint64_t> {
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auto workers = l.remaining();
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co_await l;
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co_return workers;
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};
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auto task = make_task();
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task.resume();
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REQUIRE_FALSE(task.is_ready());
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l.count_down(1);
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REQUIRE_FALSE(task.is_ready());
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l.count_down(1);
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REQUIRE_FALSE(task.is_ready());
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l.count_down(1);
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REQUIRE_FALSE(task.is_ready());
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l.count_down(1);
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REQUIRE_FALSE(task.is_ready());
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l.count_down(1);
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REQUIRE(task.is_ready());
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REQUIRE(task.promise().return_value() == 5);
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}
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TEST_CASE("latch count=5 count_down=5", "[latch]")
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{
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coro::latch l{5};
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auto make_task = [&]() -> coro::task<uint64_t> {
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auto workers = l.remaining();
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co_await l;
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co_return workers;
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};
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auto task = make_task();
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task.resume();
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REQUIRE_FALSE(task.is_ready());
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l.count_down(5);
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REQUIRE(task.is_ready());
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REQUIRE(task.promise().return_value() == 5);
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}
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