static-php-cli/src/globals/ext-tests/zstd.php

<?php

declare(strict_types=1);

assert(function_exists('zstd_compress'));
assert(function_exists('zstd_uncompress'));

$input = str_repeat('The quick brown fox jumps over the lazy dog. ', 10);
$compressed = zstd_compress($input);
assert(is_string($compressed));
assert(strlen($compressed) < strlen($input));

$uncompressed = zstd_uncompress($compressed);
assert(is_string($uncompressed));
assert($uncompressed === $input);