1 files changed, 86 insertions, 0 deletions
diff --git a/src/seastar/tests/unit/abort_source_test.cc b/src/seastar/tests/unit/abort_source_test.cc
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+++ b/src/seastar/tests/unit/abort_source_test.cc
@@ -0,0 +1,86 @@
+/*
+ * This file is open source software, licensed to you under the terms
+ * of the Apache License, Version 2.0 (the "License").  See the NOTICE file
+ * distributed with this work for additional information regarding copyright
+ * ownership.  You may not use this file except in compliance with the License.
+ *
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+/*
+ * Copyright (C) 2017 ScyllaDB
+ */
+
+#include <seastar/testing/test_case.hh>
+
+#include <seastar/core/gate.hh>
+#include <seastar/core/sleep.hh>
+#include <seastar/core/do_with.hh>
+
+using namespace seastar;
+using namespace std::chrono_literals;
+
+SEASTAR_TEST_CASE(test_abort_source_notifies_subscriber) {
+    bool signalled = false;
+    auto as = abort_source();
+    auto st_opt = as.subscribe([&signalled] () noexcept {
+        signalled = true;
+    });
+    BOOST_REQUIRE_EQUAL(true, bool(st_opt));
+    as.request_abort();
+    BOOST_REQUIRE_EQUAL(true, signalled);
+    return make_ready_future<>();
+}
+
+SEASTAR_TEST_CASE(test_abort_source_subscription_unregister) {
+    bool signalled = false;
+    auto as = abort_source();
+    auto st_opt = as.subscribe([&signalled] () noexcept {
+        signalled = true;
+    });
+    BOOST_REQUIRE_EQUAL(true, bool(st_opt));
+    st_opt = { };
+    as.request_abort();
+    BOOST_REQUIRE_EQUAL(false, signalled);
+    return make_ready_future<>();
+}
+
+SEASTAR_TEST_CASE(test_abort_source_rejects_subscription) {
+    auto as = abort_source();
+    as.request_abort();
+    auto st_opt = as.subscribe([] () noexcept { });
+    BOOST_REQUIRE_EQUAL(false, bool(st_opt));
+    return make_ready_future<>();
+}
+
+SEASTAR_TEST_CASE(test_sleep_abortable) {
+    auto as = std::make_unique<abort_source>();
+    auto f = sleep_abortable(100s, *as).then_wrapped([] (auto&& f) {
+        try {
+            f.get();
+            BOOST_FAIL("should have failed");
+        } catch (const sleep_aborted& e) {
+            // expected
+        } catch (...) {
+            BOOST_FAIL("unexpected exception");
+        }
+    });
+    as->request_abort();
+    return f.finally([as = std::move(as)] { });
+}
+
+// Verify that negative sleep does not sleep forever. It should not sleep
+// at all.
+SEASTAR_TEST_CASE(test_negative_sleep_abortable) {
+    return do_with(abort_source(), [] (abort_source& as) {
+        return sleep_abortable(-10s, as);
+    });
+}