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ClassMapGenerator: add tests for "long heredoc" bug

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... to proof the existence of the bug and demonstrate the effect.

Note: in the test the backtrack limit is being lowered (and restored back to the default afterwards) to prevent the tests needing ridiculously huge test fixture files.
This commit is contained in:
jrfnl 2021-08-11 21:08:38 +02:00
parent c65bd832d6
commit 9588654ae3
6 changed files with 2222 additions and 0 deletions
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19
tests/Composer/Test/Autoload/ClassMapGeneratorTest.php
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@ -244,6 +244,25 @@ class ClassMapGeneratorTest extends TestCase
$fs->removeDirectory($tempDir);
}
public function testCreateMapDoesNotHitRegexBacktraceLimit()
{
$expected = array(
'Foo\\StripNoise' => realpath(__DIR__) . '/Fixtures/pcrebacktracelimit/StripNoise.php',
'Foo\\VeryLongHeredoc' => realpath(__DIR__) . '/Fixtures/pcrebacktracelimit/VeryLongHeredoc.php',
'Foo\\ClassAfterLongHereDoc' => realpath(__DIR__) . '/Fixtures/pcrebacktracelimit/VeryLongHeredoc.php',
'Foo\\VeryLongPHP73Heredoc' => realpath(__DIR__) . '/Fixtures/pcrebacktracelimit/VeryLongPHP73Heredoc.php',
'Foo\\VeryLongPHP73Nowdoc' => realpath(__DIR__) . '/Fixtures/pcrebacktracelimit/VeryLongPHP73Nowdoc.php',
'Foo\\ClassAfterLongNowDoc' => realpath(__DIR__) . '/Fixtures/pcrebacktracelimit/VeryLongPHP73Nowdoc.php',
'Foo\\VeryLongNowdoc' => realpath(__DIR__) . '/Fixtures/pcrebacktracelimit/VeryLongNowdoc.php',
);
ini_set('pcre.backtrack_limit', '30000');
$result = ClassMapGenerator::createMap(__DIR__ . '/Fixtures/pcrebacktracelimit');
ini_restore('pcre.backtrack_limit');
$this->assertEqualsNormalized($expected, $result);
}
protected function assertEqualsNormalized($expected, $actual, $message = '')
{
foreach ($expected as $ns => $path) {