struct errorator_test_t : public seastar_test_suite_t {
using ertr = crimson::errorator<crimson::ct_error::invarg>;
- ertr::future<> test_do_until() {
- return crimson::repeat([i=0]() mutable {
- if (i < 5) {
- ++i;
- return ertr::make_ready_future<seastar::stop_iteration>(
- seastar::stop_iteration::no);
- } else {
- return ertr::make_ready_future<seastar::stop_iteration>(
- seastar::stop_iteration::yes);
- }
- });
- }
- static constexpr int SIZE = 42;
- ertr::future<> test_parallel_for_each() {
- auto sum = std::make_unique<int>(0);
- return ertr::parallel_for_each(
- boost::make_counting_iterator(0),
- boost::make_counting_iterator(SIZE),
- [sum=sum.get()](int i) {
- *sum += i;
- }).safe_then([sum=std::move(sum)] {
- int expected = std::accumulate(boost::make_counting_iterator(0),
- boost::make_counting_iterator(SIZE),
- 0);
- ASSERT_EQ(*sum, expected);
- });
- }
+
struct noncopyable_t {
constexpr noncopyable_t() = default;
~noncopyable_t() = default;
noncopyable_t(const noncopyable_t&) = delete;
noncopyable_t& operator=(const noncopyable_t&) = delete;
};
- ertr::future<> test_non_copy_then() {
- return create_noncopyable().safe_then([](auto t) {
- return ertr::now();
- });
- }
- ertr::future<int> test_futurization() {
- // we don't want to be enforced to always do `make_ready_future(...)`.
- // as in seastar::future, the futurization should take care about
- // turning non-future types (e.g. int) into futurized ones (e.g.
- // ertr::future<int>).
- return ertr::now().safe_then([] {
- return 42;
- }).safe_then([](int life) {
- return ertr::make_ready_future<int>(life);
- });
- }
-private:
- ertr::future<noncopyable_t> create_noncopyable() {
- return ertr::make_ready_future<noncopyable_t>();
- }
};
TEST_F(errorator_test_t, basic)
{
- run_async([this] {
- test_do_until().unsafe_get0();
+ run_async([] {
+ return crimson::repeat([i=0]() mutable {
+ if (i < 5) {
+ ++i;
+ return ertr::make_ready_future<seastar::stop_iteration>(
+ seastar::stop_iteration::no);
+ } else {
+ return ertr::make_ready_future<seastar::stop_iteration>(
+ seastar::stop_iteration::yes);
+ }
+ }).unsafe_get0();
});
}
TEST_F(errorator_test_t, parallel_for_each)
{
- run_async([this] {
- test_parallel_for_each().unsafe_get0();
+ run_async([] {
+ static constexpr int SIZE = 42;
+ auto sum = std::make_unique<int>(0);
+ return ertr::parallel_for_each(
+ boost::make_counting_iterator(0),
+ boost::make_counting_iterator(SIZE),
+ [sum=sum.get()](int i) {
+ *sum += i;
+ }).safe_then([sum=std::move(sum)] {
+ int expected = std::accumulate(boost::make_counting_iterator(0),
+ boost::make_counting_iterator(SIZE),
+ 0);
+ ASSERT_EQ(*sum, expected);
+ }).unsafe_get0();
});
}
TEST_F(errorator_test_t, non_copy_then)
{
- run_async([this] {
- test_non_copy_then().unsafe_get0();
+ run_async([] {
+ auto create_noncopyable = [] {
+ return ertr::make_ready_future<noncopyable_t>();
+ };
+ return create_noncopyable().safe_then([](auto) {
+ return ertr::now();
+ }).unsafe_get0();
});
}
TEST_F(errorator_test_t, test_futurization)
{
- run_async([this] {
- test_futurization().unsafe_get0();
+ run_async([] {
+ // we don't want to be enforced to always do `make_ready_future(...)`.
+ // as in seastar::future, the futurization should take care about
+ // turning non-future types (e.g. int) into futurized ones (e.g.
+ // ertr::future<int>).
+ return ertr::now().safe_then([] {
+ return 42;
+ }).safe_then([](int life) {
+ return ertr::make_ready_future<int>(life);
+ }).unsafe_get0();
});
}