ceph/src/seastar/tests/unit/abort_source_test.cc

   1 /*
   2  * This file is open source software, licensed to you under the terms
   3  * of the Apache License, Version 2.0 (the "License").  See the NOTICE file
   4  * distributed with this work for additional information regarding copyright
   5  * ownership.  You may not use this file except in compliance with the License.
   6  *
   7  * You may obtain a copy of the License at
   8  *
   9  *   http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing,
  12  * software distributed under the License is distributed on an
  13  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  14  * KIND, either express or implied.  See the License for the
  15  * specific language governing permissions and limitations
  16  * under the License.
  17  */
  18 /*
  19  * Copyright (C) 2017 ScyllaDB
  20  */
  21
  22 #include <seastar/testing/test_case.hh>
  23
  24 #include <seastar/core/gate.hh>
  25 #include <seastar/core/sleep.hh>
  26
  27 using namespace seastar;
  28 using namespace std::chrono_literals;
  29
  30 SEASTAR_TEST_CASE(test_abort_source_notifies_subscriber) {
  31     bool signalled = false;
  32     auto as = abort_source();
  33     auto st_opt = as.subscribe([&signalled] {
  34         signalled = true;
  35     });
  36     BOOST_REQUIRE_EQUAL(true, bool(st_opt));
  37     as.request_abort();
  38     BOOST_REQUIRE_EQUAL(true, signalled);
  39     return make_ready_future<>();
  40 }
  41
  42 SEASTAR_TEST_CASE(test_abort_source_subscription_unregister) {
  43     bool signalled = false;
  44     auto as = abort_source();
  45     auto st_opt = as.subscribe([&signalled] {
  46         signalled = true;
  47     });
  48     BOOST_REQUIRE_EQUAL(true, bool(st_opt));
  49     st_opt = { };
  50     as.request_abort();
  51     BOOST_REQUIRE_EQUAL(false, signalled);
  52     return make_ready_future<>();
  53 }
  54
  55 SEASTAR_TEST_CASE(test_abort_source_rejects_subscription) {
  56     auto as = abort_source();
  57     as.request_abort();
  58     auto st_opt = as.subscribe([] { });
  59     BOOST_REQUIRE_EQUAL(false, bool(st_opt));
  60     return make_ready_future<>();
  61 }
  62
  63 SEASTAR_TEST_CASE(test_sleep_abortable) {
  64     auto as = std::make_unique<abort_source>();
  65     auto f = sleep_abortable(100s, *as).then_wrapped([] (auto&& f) {
  66         try {
  67             f.get();
  68             BOOST_FAIL("should have failed");
  69         } catch (const sleep_aborted& e) {
  70             // expected
  71         } catch (...) {
  72             BOOST_FAIL("unexpected exception");
  73         }
  74     });
  75     as->request_abort();
  76     return f.finally([as = std::move(as)] { });
  77 }