time_sleep_until_basic.phpt

--TEST--
time_sleep_until() function - basic test for time_sleep_until()
--SKIPIF--
<?php
if (getenv("SKIP_SLOW_TESTS")) die("skip slow test");
if (!function_exists("time_sleep_until")) die('skip time_sleep_until() not available');
?>
--CREDITS--
Manuel Baldassarri mb@ideato.it
Michele Orselli mo@ideato.it
#PHPTestFest Cesena Italia on 2009-06-20
--FILE--
<?php
  $time = microtime(true) + 2;
  var_dump(time_sleep_until( (int)$time ));
  $now = microtime(true);
  if(substr(PHP_OS, 0, 3) == 'WIN' ) {
    // on windows, time_sleep_until has millisecond accuracy while microtime() is accurate
    // to 10th of a second. this means there can be up to a .9 millisecond difference
    // which will fail this test. this test randomly fails on Windows and this is the cause.
    //
    // fix: round to nearest millisecond 
    // passes for up to .5 milliseconds less, fails for more than .5 milliseconds
    // should be fine since time_sleep_until() on Windows is accurate to the
    // millisecond(.5 rounded up is 1 millisecond)
    $now = round($now, 3);
  }
  var_dump($now >= (int)$time);
?>
--EXPECT--
bool(true)
bool(true)