1 files changed, 105 insertions, 0 deletions
diff --git a/src/seastar/tests/unit/timer_test.cc b/src/seastar/tests/unit/timer_test.cc
new file mode 100644
index 00000000..5b7f354f
--- /dev/null
+++ b/src/seastar/tests/unit/timer_test.cc
@@ -0,0 +1,105 @@
+/*
+ * 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) 2014 Cloudius Systems, Ltd.
+ */
+
+#include <seastar/core/app-template.hh>
+#include <seastar/core/reactor.hh>
+#include <seastar/core/print.hh>
+#include <chrono>
+#include <iostream>
+
+using namespace seastar;
+using namespace std::chrono_literals;
+
+#define BUG() do { \
+        std::cerr << "ERROR @ " << __FILE__ << ":" << __LINE__ << std::endl; \
+        throw std::runtime_error("test failed"); \
+    } while (0)
+
+#define OK() do { \
+        std::cerr << "OK @ " << __FILE__ << ":" << __LINE__ << std::endl; \
+    } while (0)
+
+template <typename Clock>
+struct timer_test {
+    timer<Clock> t1;
+    timer<Clock> t2;
+    timer<Clock> t3;
+    timer<Clock> t4;
+    timer<Clock> t5;
+    promise<> pr1;
+    promise<> pr2;
+
+    future<> run() {
+        t1.set_callback([this] {
+            OK();
+            fmt::print(" 500ms timer expired\n");
+            if (!t4.cancel()) {
+                BUG();
+            }
+            if (!t5.cancel()) {
+                BUG();
+            }
+            t5.arm(1100ms);
+        });
+        t2.set_callback([] { OK(); fmt::print(" 900ms timer expired\n"); });
+        t3.set_callback([] { OK(); fmt::print("1000ms timer expired\n"); });
+        t4.set_callback([] { OK(); fmt::print("  BAD cancelled timer expired\n"); });
+        t5.set_callback([this] { OK(); fmt::print("1600ms rearmed timer expired\n"); pr1.set_value(); });
+
+        t1.arm(500ms);
+        t2.arm(900ms);
+        t3.arm(1000ms);
+        t4.arm(700ms);
+        t5.arm(800ms);
+
+        return pr1.get_future().then([this] { return test_timer_cancelling(); });
+    }
+
+    future<> test_timer_cancelling() {
+        timer<Clock>& t1 = *new timer<Clock>();
+        t1.set_callback([] { BUG(); });
+        t1.arm(100ms);
+        t1.cancel();
+
+        t1.arm(100ms);
+        t1.cancel();
+
+        t1.set_callback([this] { OK(); pr2.set_value(); });
+        t1.arm(100ms);
+        return pr2.get_future().then([&t1] { delete &t1; });
+    }
+};
+
+int main(int ac, char** av) {
+    app_template app;
+    timer_test<steady_clock_type> t1;
+    timer_test<lowres_clock> t2;
+    return app.run_deprecated(ac, av, [&t1, &t2] {
+        fmt::print("=== Start High res clock test\n");
+        t1.run().then([&t2] {
+            fmt::print("=== Start Low  res clock test\n");
+            return t2.run();
+        }).then([] {
+            fmt::print("Done\n");
+            engine().exit(0);
+        });
+    });
+}