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-rw-r--r--www/wiki/tests/phpunit/includes/DiffHistoryBlobTest.php45
1 files changed, 45 insertions, 0 deletions
diff --git a/www/wiki/tests/phpunit/includes/DiffHistoryBlobTest.php b/www/wiki/tests/phpunit/includes/DiffHistoryBlobTest.php
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+++ b/www/wiki/tests/phpunit/includes/DiffHistoryBlobTest.php
@@ -0,0 +1,45 @@
+<?php
+
+class DiffHistoryBlobTest extends MediaWikiTestCase {
+
+ protected function setUp() {
+ parent::setUp();
+
+ $this->checkPHPExtension( 'hash' );
+ $this->checkPHPExtension( 'xdiff' );
+
+ if ( !function_exists( 'xdiff_string_rabdiff' ) ) {
+ $this->markTestSkipped( 'The version of xdiff extension is lower than 1.5.0' );
+ return;
+ }
+ }
+
+ /**
+ * Test for DiffHistoryBlob::xdiffAdler32()
+ * @dataProvider provideXdiffAdler32
+ * @covers DiffHistoryBlob::xdiffAdler32
+ */
+ public function testXdiffAdler32( $input ) {
+ $xdiffHash = substr( xdiff_string_rabdiff( $input, '' ), 0, 4 );
+ $dhb = new DiffHistoryBlob;
+ $myHash = $dhb->xdiffAdler32( $input );
+ $this->assertSame( bin2hex( $xdiffHash ), bin2hex( $myHash ),
+ "Hash of " . addcslashes( $input, "\0..\37!@\@\177..\377" ) );
+ }
+
+ public function provideXdiffAdler32() {
+ // Hack non-empty early return since PHPUnit expands this provider before running
+ // the setUp() which marks the test as skipped.
+ if ( !function_exists( 'xdiff_string_rabdiff' ) ) {
+ return [ [ '', 'Empty string' ] ];
+ }
+
+ return [
+ [ '', 'Empty string' ],
+ [ "\0", 'Null' ],
+ [ "\0\0\0", "Several nulls" ],
+ [ "Hello", "An ASCII string" ],
+ [ str_repeat( "x", 6000 ), "A string larger than xdiff's NMAX (5552)" ]
+ ];
+ }
+}