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-rw-r--r--src/test/scheduler_tests.cpp44
1 files changed, 43 insertions, 1 deletions
diff --git a/src/test/scheduler_tests.cpp b/src/test/scheduler_tests.cpp
index 179df7dd38..b1ea4b6fab 100644
--- a/src/test/scheduler_tests.cpp
+++ b/src/test/scheduler_tests.cpp
@@ -65,7 +65,7 @@ BOOST_AUTO_TEST_CASE(manythreads)
size_t nTasks = microTasks.getQueueInfo(first, last);
BOOST_CHECK(nTasks == 0);
- for (int i = 0; i < 100; i++) {
+ for (int i = 0; i < 100; ++i) {
boost::chrono::system_clock::time_point t = now + boost::chrono::microseconds(randomMsec(rng));
boost::chrono::system_clock::time_point tReschedule = now + boost::chrono::microseconds(500 + randomMsec(rng));
int whichCounter = zeroToNine(rng);
@@ -112,4 +112,46 @@ BOOST_AUTO_TEST_CASE(manythreads)
BOOST_CHECK_EQUAL(counterSum, 200);
}
+BOOST_AUTO_TEST_CASE(singlethreadedscheduler_ordered)
+{
+ CScheduler scheduler;
+
+ // each queue should be well ordered with respect to itself but not other queues
+ SingleThreadedSchedulerClient queue1(&scheduler);
+ SingleThreadedSchedulerClient queue2(&scheduler);
+
+ // create more threads than queues
+ // if the queues only permit execution of one task at once then
+ // the extra threads should effectively be doing nothing
+ // if they don't we'll get out of order behaviour
+ boost::thread_group threads;
+ for (int i = 0; i < 5; ++i) {
+ threads.create_thread(boost::bind(&CScheduler::serviceQueue, &scheduler));
+ }
+
+ // these are not atomic, if SinglethreadedSchedulerClient prevents
+ // parallel execution at the queue level no synchronization should be required here
+ int counter1 = 0;
+ int counter2 = 0;
+
+ // just simply count up on each queue - if execution is properly ordered then
+ // the callbacks should run in exactly the order in which they were enqueued
+ for (int i = 0; i < 100; ++i) {
+ queue1.AddToProcessQueue([i, &counter1]() {
+ BOOST_CHECK_EQUAL(i, counter1++);
+ });
+
+ queue2.AddToProcessQueue([i, &counter2]() {
+ BOOST_CHECK_EQUAL(i, counter2++);
+ });
+ }
+
+ // finish up
+ scheduler.stop(true);
+ threads.join_all();
+
+ BOOST_CHECK_EQUAL(counter1, 100);
+ BOOST_CHECK_EQUAL(counter2, 100);
+}
+
BOOST_AUTO_TEST_SUITE_END()