use BOOST_THREAD_TEST_IT

Tests
grep -r 'BOOST_TEST.* < '
sometimes fails without details.
BOOST_THREAD_TEST_IT reports what the difference is.

Vim regex for replacement:
s/BOOST_TEST(\(.*\) < \(.*\))/BOOST_THREAD_TEST_IT(\1, \2)/

Author: makelinux

test/sync/futures/async/async_executor_pass.cpp

@@ -32,6 +32,7 @@
 #include <boost/detail/lightweight_test.hpp>
 #include <boost/thread/executors/basic_thread_pool.hpp>
 #include <boost/thread/executor.hpp>
+#include "../../../timming.hpp"
 
 typedef boost::chrono::high_resolution_clock Clock;
 typedef boost::chrono::milliseconds ms;
@@ -156,7 +157,7 @@ struct check_timer {
   }
   ~check_timer() {
     Clock::time_point now = Clock::now();
-    BOOST_TEST(now - start < delay);
+    BOOST_THREAD_TEST_IT(now - start, delay);
     std::cout << __FILE__ << "[" << __LINE__ << "] " << (now - start).count() << std::endl;
   }
 

test/sync/mutual_exclusion/locks/unique_lock/cons/time_point_pass.cpp

@@ -55,8 +55,8 @@ void f2()
   boost::unique_lock<boost::timed_mutex> lk(m, Clock::now() + ms(250));
   BOOST_TEST(lk.owns_lock() == false);
   t1 = Clock::now();
-  ns d = t1 - t0 - ms(250);
-  BOOST_TEST(d < max_diff);
+  ms d = boost::chrono::duration_cast<boost::chrono::milliseconds>(t1 - t0) - ms(250);
+  BOOST_THREAD_TEST_IT(d, ns(max_diff));
 }
 
 int main()