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<?php
declare(strict_types=1);
namespace LaminasTest\Stdlib;
use Exception;
use Laminas\Stdlib\ErrorHandler;
use Laminas\Stdlib\StringUtils;
use Laminas\Stdlib\StringWrapper\Iconv;
use Laminas\Stdlib\StringWrapper\Intl;
use Laminas\Stdlib\StringWrapper\MbString;
use Laminas\Stdlib\StringWrapper\Native;
use Laminas\Stdlib\StringWrapper\StringWrapperInterface;
use PHPUnit\Framework\Attributes\DataProvider;
use PHPUnit\Framework\TestCase;
use function defined;
use function extension_loaded;
use function preg_match;
final class StringUtilsTest extends TestCase
{
protected function tearDown(): void
{
StringUtils::resetRegisteredWrappers();
}
/** @psalm-return array<array-key, array{0: string}> */
public static function getSingleByEncodings(): array
{
return [
// case-mix to check case-insensitivity
['AscII'],
['7bIt'],
['8Bit'],
['ISo-8859-1'],
['ISo-8859-2'],
['ISo-8859-3'],
['ISo-8859-4'],
['ISo-8859-5'],
['ISo-8859-6'],
['ISo-8859-7'],
['ISo-8859-8'],
['ISo-8859-9'],
['ISo-8859-10'],
['ISo-8859-11'],
['ISo-8859-13'],
['ISo-8859-14'],
['ISo-8859-15'],
['ISo-8859-16'],
];
}
/**
* @param string $encoding
*/
#[DataProvider('getSingleByEncodings')]
public function testIsSingleByteEncodingReturnsTrue($encoding): void
{
self::assertTrue(StringUtils::isSingleByteEncoding($encoding));
}
/** @psalm-return array<array-key, array{0: string}> */
public static function getNonSingleByteEncodings(): array
{
return [
['UTf-8'],
['UTf-16'],
['usC-2'],
['CESU-8'],
];
}
/**
* @param string $encoding
*/
#[DataProvider('getNonSingleByteEncodings')]
public function testIsSingleByteEncodingReturnsFalse($encoding): void
{
self::assertFalse(StringUtils::isSingleByteEncoding($encoding));
}
public function testGetWrapper(): void
{
$wrapper = StringUtils::getWrapper('ISO-8859-1');
if (extension_loaded('mbstring')) {
self::assertInstanceOf(MbString::class, $wrapper);
} elseif (extension_loaded('iconv')) {
self::assertInstanceOf(Iconv::class, $wrapper);
} else {
self::assertInstanceOf(Native::class, $wrapper);
}
try {
$wrapper = StringUtils::getWrapper('UTF-8');
if (extension_loaded('intl')) {
self::assertInstanceOf(Intl::class, $wrapper);
} elseif (extension_loaded('mbstring')) {
self::assertInstanceOf(MbString::class, $wrapper);
} elseif (extension_loaded('iconv')) {
self::assertInstanceOf(Iconv::class, $wrapper);
}
} catch (Exception) {
if (
extension_loaded('intl')
|| extension_loaded('mbstring')
|| extension_loaded('iconv')
) {
$this->fail("Failed to get intl, mbstring or iconv wrapper for UTF-8");
}
}
try {
$wrapper = StringUtils::getWrapper('UTF-8', 'ISO-8859-1');
if (extension_loaded('mbstring')) {
self::assertInstanceOf(MbString::class, $wrapper);
} elseif (extension_loaded('iconv')) {
self::assertInstanceOf(Iconv::class, $wrapper);
}
} catch (Exception) {
if (extension_loaded('mbstring') || extension_loaded('iconv')) {
$this->fail("Failed to get mbstring or iconv wrapper for UTF-8 and ISO-8859-1");
}
}
}
/**
* @psalm-return array<array-key, array{
* 0: mixed,
* 1: bool
* }>
*/
public static function getUtf8StringValidity(): array
{
return [
// valid
['', true],
[
"\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x0B\x0C\x0D\x0E\x0F"
. "\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1A\x1B\x1C\x1D\x1E\x1F"
. ' !"#$%&\'()*+,-./0123456789:;<=>?'
. '@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_'
. '`abcdefghijklmnopqrstuvwxyz{|}~',
true,
],
// invalid
[true, false],
[123, false],
[123.45, false],
["\xFF", false],
["\x90a", false],
];
}
#[DataProvider('getUtf8StringValidity')]
public function testIsValidUtf8(mixed $str, bool $valid): void
{
/** @psalm-suppress MixedArgument */
self::assertSame($valid, StringUtils::isValidUtf8($str));
}
public function testHasPcreUnicodeSupport(): void
{
ErrorHandler::start();
$expected = defined('PREG_BAD_UTF8_OFFSET_ERROR') && preg_match('/\pL/u', 'a') === 1;
ErrorHandler::stop();
self::assertSame($expected, StringUtils::hasPcreUnicodeSupport());
}
public function testRegisterSpecificWrapper(): void
{
$wrapper = $this->createMock(StringWrapperInterface::class);
StringUtils::resetRegisteredWrappers();
StringUtils::registerWrapper($wrapper::class);
$this->assertContains($wrapper::class, StringUtils::getRegisteredWrappers());
}
public function testUnregisterSpecificWrapper(): void
{
// initialize the list with defaults
// then verify that native is contained in the wrapper list
$this->assertContains(Native::class, StringUtils::getRegisteredWrappers());
StringUtils::resetRegisteredWrappers();
StringUtils::unregisterWrapper(Native::class);
$this->assertNotContains(Native::class, StringUtils::getRegisteredWrappers());
}
}
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