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--TEST--
Test ftruncate() function : error conditions
--FILE--
<?php
/*
Prototype: bool ftruncate ( resource $handle, int $size );
Description: truncates a file to a given length
*/
echo "*** Testing ftruncate() : error conditions ***\n";
$filename = dirname(__FILE__)."/ftruncate_error.tmp";
$file_handle = fopen($filename, "w" );
fwrite($file_handle, (binary)"Testing ftruncate error conditions \n");
fflush($file_handle);
echo "\n Initial file size = ".filesize($filename)."\n";
echo "-- Testing ftruncate() with less than expected number of arguments --\n";
// zero arguments
var_dump( ftruncate() );
// arguments less than expected numbers
var_dump( ftruncate( $file_handle ) );
// check the first size
var_dump( filesize($filename) );
echo "-- Testing ftruncate() with more than expected number of arguments --\n";
// more than expected number of arguments
var_dump( ftruncate($file_handle, 10, 20) );
// check the first size
var_dump( filesize($filename) );
// test invalid arguments : non-resources
echo "-- Testing ftruncate() with invalid file pointer --\n";
$invalid_args = array (
"string",
10,
10.5,
true,
array(1,2,3),
new stdclass,
);
/* loop to test ftruncate() with different invalid type of args */
for($loop_counter = 1; $loop_counter <= count($invalid_args); $loop_counter++) {
echo "-- Iteration $loop_counter --\n";
var_dump( ftruncate($invalid_args[$loop_counter - 1], 10) );
}
// ftruncate() on a file handle which is already closed/unset
echo "-- Testing ftruncate() with closed/unset file handle --\n";
// ftruncate on close file handle
fclose($file_handle);
var_dump( ftruncate($file_handle,10) );
// check the first size
var_dump( filesize($filename) );
// ftruncate on a file handle which is unset
$fp = fopen($filename, "w");
unset($fp); //unset file handle
var_dump( ftruncate(@$fp,10));
// check the first size
var_dump( filesize($filename) );
echo "Done\n";
?>
--CLEAN--
<?php
$filename = dirname(__FILE__)."/ftruncate_error.tmp";
unlink( $filename );
?>
--EXPECTF--
*** Testing ftruncate() : error conditions ***
Initial file size = 36
-- Testing ftruncate() with less than expected number of arguments --
Warning: ftruncate() expects exactly 2 parameters, 0 given in %s on line %d
bool(false)
Warning: ftruncate() expects exactly 2 parameters, 1 given in %s on line %d
bool(false)
int(36)
-- Testing ftruncate() with more than expected number of arguments --
Warning: ftruncate() expects exactly 2 parameters, 3 given in %s on line %d
bool(false)
int(36)
-- Testing ftruncate() with invalid file pointer --
-- Iteration 1 --
Warning: ftruncate() expects parameter 1 to be resource, string given in %s on line %d
bool(false)
-- Iteration 2 --
Warning: ftruncate() expects parameter 1 to be resource, integer given in %s on line %d
bool(false)
-- Iteration 3 --
Warning: ftruncate() expects parameter 1 to be resource, double given in %s on line %d
bool(false)
-- Iteration 4 --
Warning: ftruncate() expects parameter 1 to be resource, boolean given in %s on line %d
bool(false)
-- Iteration 5 --
Warning: ftruncate() expects parameter 1 to be resource, array given in %s on line %d
bool(false)
-- Iteration 6 --
Warning: ftruncate() expects parameter 1 to be resource, object given in %s on line %d
bool(false)
-- Testing ftruncate() with closed/unset file handle --
Warning: ftruncate(): %d is not a valid stream resource in %s on line %d
bool(false)
int(36)
Warning: ftruncate() expects parameter 1 to be resource, null given in %s on line %d
bool(false)
int(36)
Done