48a323f702
Bug: T192167 Depends-On: I581e54278ac5da3f4e399e33f2c7ad468bae6b43 Change-Id: I3a21fb55db76bac51afdd399cf40ed0760e4f343
44 lines
1.2 KiB
PHP
44 lines
1.2 KiB
PHP
<?php
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class DiffHistoryBlobTest extends MediaWikiTestCase {
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protected function setUp() : void {
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parent::setUp();
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$this->checkPHPExtension( 'hash' );
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$this->checkPHPExtension( 'xdiff' );
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if ( !function_exists( 'xdiff_string_rabdiff' ) ) {
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$this->markTestSkipped( 'The version of xdiff extension is lower than 1.5.0' );
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return;
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}
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}
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/**
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* @dataProvider provideXdiffAdler32
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* @covers DiffHistoryBlob::xdiffAdler32
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*/
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public 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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public function provideXdiffAdler32() {
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// Hack non-empty early return since PHPUnit expands this provider before running
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// the setUp() which marks the test as skipped.
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if ( !function_exists( 'xdiff_string_rabdiff' ) ) {
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return [ [ '', 'Empty string' ] ];
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}
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return [
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[ '', 'Empty string' ],
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[ "\0", 'Null' ],
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[ "\0\0\0", "Several nulls" ],
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[ "Hello", "An ASCII string" ],
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[ 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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