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--TEST--
Test usleep() function : error conditions
--FILE--
<?php
/* Prototype : void usleep ( int $micro_seconds )
* Description: Delays program execution for the given number of micro seconds.
* Source code: ext/standard/basic_functions.c
*/
set_time_limit(20);
echo "*** Testing usleep() : error conditions ***\n";
echo "\n-- Testing usleep() function with zero arguments --\n";
var_dump( usleep() );
echo "\n-- Testing usleep() function with more than expected no. of arguments --\n";
$seconds = 10;
$extra_arg = 10;
var_dump( usleep($seconds, $extra_arg) );
echo "\n-- Testing usleep() function with negative interval --\n";
$seconds = -10;
var_dump( usleep($seconds) );
?>
===DONE===
--EXPECTF--
*** Testing usleep() : error conditions ***
-- Testing usleep() function with zero arguments --
Warning: usleep() expects exactly 1 parameter, 0 given in %s on line %d
NULL
-- Testing usleep() function with more than expected no. of arguments --
Warning: usleep() expects exactly 1 parameter, 2 given in %s on line %d
NULL
-- Testing usleep() function with negative interval --
Warning: usleep(): Number of microseconds must be greater than or equal to 0 in %s on line %d
bool(false)
===DONE===
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