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--TEST--
Testing unlink() function : error conditions
--SKIPIF--
<?php
if (substr(PHP_OS, 0, 3) == 'WIN') {
die('skip.. only on Linux');
}
?>
--FILE--
<?php
/* Prototype : bool unlink ( string $filename [, resource $context] );
Description : Deletes filename
*/
$file_path = dirname(__FILE__);
$filename = "$file_path/unlink_error.tmp"; // temp file name used here
$fp = fopen($filename, "w"); // create file
fclose($fp);
// creating a context
$context = stream_context_create();
echo "*** Testing unlink() : error conditions ***\n";
echo "-- Testing unlink() on unexpected no. of arguments --\n";
// arg < expected
var_dump( unlink() );
// args > expected
var_dump( unlink($filename, $context, true) );
var_dump( file_exists($filename) ); // expected true
echo "\n-- Testing unlink() on invalid arguments --\n";
// invalid arguments
var_dump( unlink('') ); // $filename as empty string
var_dump( file_exists('') ); // confirm file doesnt exist
var_dump( unlink(NULL) ); // $filename as NULL
var_dump( file_exists(NULL) ); // confirm file doesnt exist
var_dump( unlink(false) ); // $filename as boolean false
var_dump( file_exists(false) ); // confirm file doesnt exist
var_dump( unlink($filename, '') ); // $context as empty string
var_dump( unlink($filename, false) ); // $context as boolean false
var_dump( unlink($filename, NULL) ); // $context as NULL
echo "\n-- Testing unlink() on non-existent file --\n";
var_dump( unlink(dirname(__FILE__)."/non_existent_file.tmp") );
echo "\n-- Testing unlink() on directory --\n";
// temp directory used here
$dirname = "$file_path/unlink_error";
// create temp dir
mkdir($dirname);
// unlinking directory
var_dump( unlink($dirname) ); // expected: false as unlink() does not work on dir
echo "Done\n";
?>
--CLEAN--
<?php
unlink(dirname(__FILE__)."/unlink_error.tmp");
rmdir(dirname(__FILE__)."/unlink_error");
?>
--EXPECTF--
*** Testing unlink() : error conditions ***
-- Testing unlink() on unexpected no. of arguments --
Warning: unlink() expects at least 1 parameter, 0 given in %s on line %d
bool(false)
Warning: unlink() expects at most 2 parameters, 3 given in %s on line %d
bool(false)
bool(true)
-- Testing unlink() on invalid arguments --
Warning: unlink(): %s in %s on line %d
bool(false)
bool(false)
Warning: unlink(): %s in %s on line %d
bool(false)
bool(false)
Warning: unlink(): %s in %s on line %d
bool(false)
bool(false)
Warning: unlink() expects parameter 2 to be resource, %unicode_string_optional% given in %s on line %d
bool(false)
Warning: unlink() expects parameter 2 to be resource, boolean given in %s on line %d
bool(false)
Warning: unlink() expects parameter 2 to be resource, null given in %s on line %d
bool(false)
-- Testing unlink() on non-existent file --
Warning: unlink(%s/non_existent_file.tmp): No such file or directory in %s on line %d
bool(false)
-- Testing unlink() on directory --
Warning: unlink(%s/unlink_error): %s in %s on line %d
bool(false)
Done