IEUrlExtensionTest.php

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<?php
 
class IEUrlExtensionTest extends PHPUnit\Framework\TestCase {
 
    use MediaWikiCoversValidator;
 
    public function provideFindIE6Extension() {
        return [
            // url, expected, message
            [ 'x.y', 'y', 'Simple extension' ],
            [ 'x', '', 'No extension' ],
            [ '', '', 'Empty string' ],
            [ '?', '', 'Question mark only' ],
            [ '.x?', 'x', 'Extension then question mark' ],
            [ '?.x', 'x', 'Question mark then extension' ],
            [ '.x*', '', 'Extension with invalid character' ],
            [ '*.x', 'x', 'Invalid character followed by an extension' ],
            [ 'a?b?.c?.d?e?f', 'c', 'Multiple question marks' ],
            [ 'a?b?.exe?.d?.e', 'd', '.exe exception' ],
            [ 'a?b?.exe', 'exe', '.exe exception 2' ],
            [ 'a#b.c', '', 'Hash character preceding extension' ],
            [ 'a?#b.c', '', 'Hash character preceding extension 2' ],
            [ '.', '', 'Dot at end of string' ],
            [ 'x.y.z', 'z', 'Two dots' ],
            [ 'example.php?foo=a&bar=b', 'php', 'Script with query' ],
            [ 'example%2Ephp?foo=a&bar=b', '', 'Script with urlencoded dot and query' ],
            [ 'example%2Ephp?foo=a.x&bar=b.y', 'y', 'Script with urlencoded dot and query with dot' ],
        ];
    }
 
    public function testFindIE6Extension( $url, $expected, $message ) {
        $this->assertEquals(
            $expected,
            IEUrlExtension::findIE6Extension( $url ),
            $message
        );
    }
}