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--TEST--
Test trim() function : error conditions
--FILE--
<?php
/* Prototype : string trim ( string $str [, string $charlist ] )
* Description: Strip whitespace (or other characters) from the beginning and end of a string.
* Source code: ext/standard/string.c
*/
echo "*** Testing trim() : error conditions ***\n";
echo "\n-- Testing trim() function with no arguments --\n";
var_dump( trim() );
echo "\n-- Testing trim() function with more than expected no. of arguments --\n";
$extra_arg = 10;
var_dump( trim("Hello World", "Heo", $extra_arg) );
$hello = " Hello World\n";
echo "\n-- Test trim function with various invalid charlists --\n";
var_dump(trim($hello, "..a"));
var_dump(trim($hello, "a.."));
var_dump(trim($hello, "z..a"));
var_dump(trim($hello, "a..b..c"));
?>
===DONE===
--EXPECTF--
*** Testing trim() : error conditions ***
-- Testing trim() function with no arguments --
Warning: trim() expects at least 1 parameter, 0 given in %s on line %d
NULL
-- Testing trim() function with more than expected no. of arguments --
Warning: trim() expects at most 2 parameters, 3 given in %s on line %d
NULL
-- Test trim function with various invalid charlists --
Warning: trim(): Invalid '..'-range, no character to the left of '..' in %s on line %d
string(14) " Hello World
"
Warning: trim(): Invalid '..'-range, no character to the right of '..' in %s on line %d
string(14) " Hello World
"
Warning: trim(): Invalid '..'-range, '..'-range needs to be incrementing in %s on line %d
string(14) " Hello World
"
Warning: trim(): Invalid '..'-range in %s on line %d
string(14) " Hello World
"
===DONE===
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