36 lines
1 KiB
PHP
36 lines
1 KiB
PHP
<?php
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class DiffHistoryBlobTest extends MediaWikiTestCase {
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function setUp() {
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if ( !extension_loaded( 'xdiff' ) ) {
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$this->markTestSkipped( 'The xdiff extension is not available' );
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return;
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}
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if ( !extension_loaded( 'hash' ) && !extension_loaded( 'mhash' ) ) {
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$this->markTestSkipped( 'Neither the hash nor mhash extension is available' );
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return;
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}
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}
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/**
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* Test for DiffHistoryBlob::xdiffAdler32()
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* @dataProvider provideXdiffAdler32
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*/
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function testXdiffAdler32( $input ) {
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$xdiffHash = substr( xdiff_string_rabdiff( $input, '' ), 0, 4 );
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$dhb = new DiffHistoryBlob;
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$myHash = $dhb->xdiffAdler32( $input );
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$this->assertSame( bin2hex( $xdiffHash ), bin2hex( $myHash ),
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"Hash of " . addcslashes( $input, "\0..\37!@\@\177..\377" ) );
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}
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function provideXdiffAdler32() {
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return array(
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array( '', 'Empty string' ),
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array( "\0", 'Null' ),
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array( "\0\0\0", "Several nulls" ),
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array( "Hello", "An ASCII string" ),
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array( str_repeat( "x", 6000 ), "A string larger than xdiff's NMAX (5552)" )
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);
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}
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}
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