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TestListenerTrait.php
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TestListenerTrait.php
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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Polyfill\Util;
use PHPUnit\Framework\SkippedTestError;
use PHPUnit\Util\Test;
use Symfony\Component\VarDumper\Caster\ReflectionCaster;
use Symfony\Component\VarDumper\Cloner\Stub;
/**
* @author Nicolas Grekas <p@tchwork.com>
*/
class TestListenerTrait
{
public static $enabledPolyfills;
public function startTestSuite($mainSuite)
{
if (null !== self::$enabledPolyfills) {
return;
}
self::$enabledPolyfills = false;
$warnings = [];
foreach ($mainSuite->tests() as $suite) {
$testClass = $suite->getName();
if (!$tests = $suite->tests()) {
continue;
}
if (\in_array('class-polyfill', Test::getGroups($testClass), true)) {
// TODO: check signatures for all polyfilled methods on PHP >= 8
continue;
}
$testedClass = new \ReflectionClass($testClass);
if (preg_match('{^ \* @requires PHP (.*)}mi', $testedClass->getDocComment(), $m) && version_compare($m[1], \PHP_VERSION, '>')) {
continue;
}
if (!preg_match('/^(.+)\\\\Tests(\\\\.*)Test$/', $testClass, $m)) {
$mainSuite->addTest(TestListener::warning('Unknown naming convention for '.$testClass));
continue;
}
if (!class_exists($m[1].$m[2])) {
continue;
}
$testedClass = new \ReflectionClass($m[1].$m[2]);
$bootstrap = \dirname($testedClass->getFileName()).'/bootstrap';
$bootstrap = new \SplFileObject($bootstrap.(\PHP_VERSION_ID >= 80000 && file_exists($bootstrap.'80.php') ? '80' : '').'.php');
$newWarnings = 0;
$defLine = null;
foreach (new \RegexIterator($bootstrap, '/define\(\'/') as $defLine) {
preg_match("/define\('(?P<name>[^']++)'/", $defLine, $matches);
if (\defined($matches['name'])) {
continue;
}
try {
eval($defLine);
} catch (\PHPUnit\Framework\Exception $ex) {
$warnings[] = TestListener::warning($ex->getMessage());
++$newWarnings;
}
}
$bootstrap->rewind();
foreach (new \RegexIterator($bootstrap, '/return p\\\\'.$testedClass->getShortName().'::/') as $defLine) {
if (!preg_match('/^\s*function (?P<name>[^\(]++)(?P<signature>\(.*\)(?: ?: [^ ]++)?) \{ (?<return>return p\\\\'.$testedClass->getShortName().'::[^\(]++)(?P<args>\([^\n]*?\)); \}$/', $defLine, $f)) {
$warnings[] = TestListener::warning('Invalid line in '.$bootstrap->getPathname().': '.trim($defLine));
++$newWarnings;
continue;
}
$testNamespace = substr($testClass, 0, strrpos($testClass, '\\'));
if (\function_exists($testNamespace.'\\'.$f['name'])) {
continue;
}
try {
$r = new \ReflectionFunction($f['name']);
if ($r->isUserDefined()) {
throw new \ReflectionException();
}
if ('idn_to_ascii' === $f['name'] || 'idn_to_utf8' === $f['name']) {
$defLine = sprintf('return PHP_VERSION_ID < 80000 && INTL_IDNA_VARIANT_2003 === $variant ? \\%s($domain, $options, $variant) : \\%1$s%s', $f['name'], $f['args']);
} elseif (false !== strpos($f['signature'], '&') && 'idn_to_ascii' !== $f['name'] && 'idn_to_utf8' !== $f['name']) {
$defLine = sprintf('return \\%s%s', $f['name'], $f['args']);
} else {
$defLine = sprintf("return \\call_user_func_array('%s', \\func_get_args())", $f['name']);
}
} catch (\ReflectionException $e) {
$r = null;
$defLine = sprintf("throw new \\%s('Internal function not found: %s')", SkippedTestError::class, $f['name']);
}
eval(<<<EOPHP
namespace {$testNamespace};
use Symfony\Polyfill\Util\TestListenerTrait;
use {$testedClass->getNamespaceName()} as p;
function {$f['name']}{$f['signature']}
{
if ('{$testClass}' === TestListenerTrait::\$enabledPolyfills) {
{$f['return']}{$f['args']};
}
{$defLine};
}
EOPHP
);
if (\PHP_VERSION_ID >= 80000 && $r && false === strpos($bootstrap->getPath(), 'Php7') && false === strpos($bootstrap->getPath(), 'Php80')) {
$originalSignature = ReflectionCaster::getSignature(ReflectionCaster::castFunctionAbstract($r, [], new Stub(), true));
$polyfillSignature = ReflectionCaster::castFunctionAbstract(new \ReflectionFunction($testNamespace.'\\'.$f['name']), [], new Stub(), true);
$polyfillSignature = ReflectionCaster::getSignature($polyfillSignature);
$map = [
'?' => '',
'IDNA_DEFAULT' => \PHP_VERSION_ID >= 80100 ? 'IDNA_DEFAULT' : '0',
'array|string|null $string' => 'array|string $string',
'array|string|null $from_encoding = null' => 'array|string|null $from_encoding = null',
'array|string|null $from_encoding' => 'array|string $from_encoding',
];
if (strtr($polyfillSignature, $map) !== $originalSignature) {
$warnings[] = TestListener::warning("Incompatible signature for PHP >= 8:\n- {$f['name']}$originalSignature\n+ {$f['name']}$polyfillSignature");
}
}
}
if (!$newWarnings && null === $defLine) {
$warnings[] = TestListener::warning('No polyfills found in bootstrap.php for '.$testClass);
} else {
$mainSuite->addTest(new TestListener($suite));
}
}
foreach ($warnings as $w) {
$mainSuite->addTest($w);
}
}
public function addError($test, \Exception $e, $time)
{
if (false !== self::$enabledPolyfills) {
$r = new \ReflectionProperty('Exception', 'message');
$r->setAccessible(true);
$r->setValue($e, 'Polyfills enabled, '.$r->getValue($e));
}
}
}