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|
--TEST--
zstd_compress(): compress level
--SKIPIF--
<?php
if (LIBZSTD_VERSION_NUMBER >= 10304) die("skip needs libzstd 1.3.3 or older");
?>
--FILE--
<?php
include(dirname(__FILE__) . '/data.inc');
function check_compress($data, $level)
{
$output = (string)zstd_compress($data, $level);
echo $level, ' -- ', strlen($output), ' -- ',
var_export(zstd_uncompress($output) === $data, true), PHP_EOL;
}
echo "*** Data size ***", PHP_EOL;
echo strlen($data), PHP_EOL;
echo "*** Compression Level ***", PHP_EOL;
for (
$level = ZSTD_COMPRESS_LEVEL_MIN;
$level <= ZSTD_COMPRESS_LEVEL_MAX;
$level++
) {
check_compress($data, $level);
}
echo "*** Invalid Compression Level ***", PHP_EOL;
check_compress($data, 100);
check_compress($data, -1);
?>
===Done===
--EXPECTF--
*** Data size ***
3547
*** Compression Level ***
1 -- 1%d -- true
2 -- 1%d -- true
3 -- 1%d -- true
4 -- 1%d -- true
5 -- 1%d -- true
6 -- 1%d -- true
7 -- 1%d -- true
8 -- 1%d -- true
9 -- 1%d -- true
10 -- 1%d -- true
11 -- 1%d -- true
12 -- 1%d -- true
13 -- 1%d -- true
14 -- 1%d -- true
15 -- 1%d -- true
16 -- 1%d -- true
17 -- 1%d -- true
18 -- 1%d -- true
19 -- 1%d -- true
20 -- 1%d -- true
21 -- 1%d -- true
22 -- 1%d -- true
*** Invalid Compression Level ***
Warning: zstd_compress: compression level (100) must be within 1..22 in %s on line %d
100 -- 0 --
Warning: zstd_uncompress: it was not compressed by zstd in %s on line %d
false
Warning: zstd_compress: compression level (-1) must be within 1..22 in %s on line %d
-1 -- 0 --
Warning: zstd_uncompress: it was not compressed by zstd in %s on line %d
false
===Done===
|
