On Wed, Mar 23, 2011 at 12:27 PM, Steven Watanabe <watanabesj@gmail.com> wrote:

AMDG

On 03/22/2011 11:52 PM, Stirling Westrup wrote:

...

I have been using Boost.test to run some simple unit tests as I build my code. I've come across a case where I need to test if my code runs within an acceptable time limit. I know that the execution monitor has a timeout system for testing that sort of thing, but I can't figure out how it is supposed to be integrated into the unit test framework.

Well, you can just use boost::execution_monitor. There's nothing incompatible between it and the Unit Test Framework.

Unfortunately, as the documentation notes:

unit_test::readwrite_property<int> p_timeout; //       Specifies the seconds that elapse before a timer_error occurs.  May be ignored on some platforms.

I tried the following on both Linux and Windows, and it didn't work on Windows.

#include <boost/test/included/execution_monitor.hpp>

#define BOOST_TEST_MAIN #include <boost/test/included/unit_test.hpp>

int f() {    for(;;); }

BOOST_AUTO_TEST_CASE(test_timeout) {    boost::execution_monitor monitor;    monitor.p_timeout.set(5);    monitor.execute(&f); }

...

Ideally, I'd love to just have a BOOST_CHECK_TIMED( f(), timeout) that I could invoke to ensure that the code returns true, and returns within the specified timeout interval.

Thanks! Your example is simple enough that I can see how to work it into my unit tests. Luckily I'm benchmarking my code under Linux, so I don't have to worry about other platforms when it comes to these tests. -- Stirling Westrup Programmer, Entrepreneur. https://www.linkedin.com/e/fpf/77228 http://www.linkedin.com/in/swestrup http://technaut.livejournal.com http://sourceforge.net/users/stirlingwestrup

On Thu, Mar 24, 2011 at 11:37 AM, Guillaume Theraud <gui@futarque.com> wrote:

On 2011-03-23 07:52, Stirling Westrup wrote:

I have been using Boost.test to run some simple unit tests as I build my code. I've come across a case where I need to test if my code runs within an acceptable time limit. I know that the execution monitor has a timeout system for testing that sort of thing, but I can't figure out how it is supposed to be integrated into the unit test framework.

Ideally, I'd love to just have a BOOST_CHECK_TIMED( f(), timeout) that I could invoke to ensure that the code returns true, and returns within the specified timeout interval.

I just came with a basic solution that I have not fully tested but seems to work. However it demands some optimization. (Please, be soft on me, I have not been working much on this one).

I created a ( TestCaseName, TimeOutValue ) macro. This macro is extended to something like

#define BOOST_AUTO_TEST_CASE_TIMED( NAME , TIMEOUT)                 \ class NAME##_timeout {                 \ public:                 \ NAME##_timeout(){ConfigurationVisitor::getInstance()->registerTimeOut(#NAME, TIMEOUT);}    \ };                  \ NAME##_timeout* NAME##_timeInstance = new NAME##_timeout();                 \ BOOST_AUTO_TEST_CASE( NAME )

I am using test_tree_visitor implementation - ConfigurationVisitor - instantiated before the boost::monitor execution is called.

void ConfigurationVisitor::visit( test_case const& itc ) {     test_case & tc=*(test_case *)&itc; // Hack !

tc.p_timeout.set(boost::unit_test::class_property<unsigned>(getTimeOut(tc.p_name.value))); } This will update test_case timeout to the value return by getTimeOut (0 if none, of the actual TimeOutvalue registered for the test case.

This test tree visitor also exposed some static functions :

static void registerTimeOut(std::string iTestName, int iTimeOut); static int getTimeOut(std::string iTestName);

The time out value is store in a std::map.

Runtime, before calling the ::boost::unit_test::unit_test_main, I do traverse_test_tree(framework::master_test_suite().p_id, *ConfigurationVisitor::getInstance());

At the end, I got something like that :

BOOST_AUTO_TEST_CASE_TIMED( MyTestCase1, 5 ) {     while(1){         usleep(1000);         BOOST_TEST_MESSAGE("HelloWorld");     } }

And log will be :

Entering test case "MyTestCase1" HelloWorld HelloWorld HelloWorld HelloWorld HelloWorld unknown location(0): fatal error in "MyTestCase2": signal: SIGALRM (timeout while executing function) .../MyTimeOutTestSuite.cpp(64): last checkpoint Leaving test case "MyTestCase1"

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However, the hack in the visit function is actually my main concern about this solution. It may not be what you are look for, but I hope this will help though.

Guillaume.

Thanks for this response, as it does look like something that I could use, but I have NO IDEA how I am supposed to make use of what you wrote here. You seem to be assuming not only a greater knowledge of the internals of Boost.test than I have, but also a greater knowledge than can be gleamed from the current documentation. -- Stirling Westrup Programmer, Entrepreneur. https://www.linkedin.com/e/fpf/77228 http://www.linkedin.com/in/swestrup http://technaut.livejournal.com http://sourceforge.net/users/stirlingwestrup