LinksUpdateTest.php

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<?php

class LinksUpdateTest extends MediaWikiTestCase {

    function __construct( $name = null, array $data = array(), $dataName = '' ) {
        parent::__construct( $name, $data, $dataName );

        $this->tablesUsed = array_merge( $this->tablesUsed,
            array(
                'interwiki',
                'page_props',
                'pagelinks',
                'categorylinks',
                'langlinks',
                'externallinks',
                'imagelinks',
                'templatelinks',
                'iwlinks'
            )
        );
    }

    protected function setUp() {
        parent::setUp();
        $dbw = wfGetDB( DB_MASTER );
        $dbw->replace(
            'interwiki',
            array( 'iw_prefix' ),
            array(
                'iw_prefix' => 'linksupdatetest',
                'iw_url' => 'http://testing.com/wiki/$1',
                'iw_api' => 'http://testing.com/w/api.php',
                'iw_local' => 0,
                'iw_trans' => 0,
                'iw_wikiid' => 'linksupdatetest',
            )
        );
    }

    protected function makeTitleAndParserOutput( $name, $id ) {
        $t = Title::newFromText( $name );
        $t->mArticleID = $id; # XXX: this is fugly

        $po = new ParserOutput();
        $po->setTitleText( $t->getPrefixedText() );

        return array( $t, $po );
    }

    public function testUpdate_pagelinks() {
        list( $t, $po ) = $this->makeTitleAndParserOutput( "Testing", 111 );

        $po->addLink( Title::newFromText( "Foo" ) );
        $po->addLink( Title::newFromText( "Special:Foo" ) ); // special namespace should be ignored
        $po->addLink( Title::newFromText( "linksupdatetest:Foo" ) ); // interwiki link should be ignored
        $po->addLink( Title::newFromText( "#Foo" ) ); // hash link should be ignored

        $update = $this->assertLinksUpdate( $t, $po, 'pagelinks', 'pl_namespace, pl_title', 'pl_from = 111', array(
            array( NS_MAIN, 'Foo' ),
        ) );
        $this->assertArrayEquals( array(
            Title::makeTitle( NS_MAIN, 'Foo' ),  // newFromText doesn't yield the same internal state....
        ), $update->getAddedLinks() );

        $po = new ParserOutput();
        $po->setTitleText( $t->getPrefixedText() );

        $po->addLink( Title::newFromText( "Bar" ) );
        $po->addLink( Title::newFromText( "Talk:Bar" ) );

        $update = $this->assertLinksUpdate( $t, $po, 'pagelinks', 'pl_namespace, pl_title', 'pl_from = 111', array(
            array( NS_MAIN, 'Bar' ),
            array( NS_TALK, 'Bar' ),
        ) );
        $this->assertArrayEquals( array(
            Title::makeTitle( NS_MAIN, 'Bar' ),
            Title::makeTitle( NS_TALK, 'Bar' ),
        ), $update->getAddedLinks() );
        $this->assertArrayEquals( array(
            Title::makeTitle( NS_MAIN, 'Foo' ),
        ), $update->getRemovedLinks() );
    }

    public function testUpdate_externallinks() {
        list( $t, $po ) = $this->makeTitleAndParserOutput( "Testing", 111 );

        $po->addExternalLink( "http://testing.com/wiki/Foo" );

        $this->assertLinksUpdate( $t, $po, 'externallinks', 'el_to, el_index', 'el_from = 111', array(
            array( 'http://testing.com/wiki/Foo', 'http://com.testing./wiki/Foo' ),
        ) );
    }

    public function testUpdate_categorylinks() {
        $this->setMwGlobals( 'wgCategoryCollation', 'uppercase' );

        list( $t, $po ) = $this->makeTitleAndParserOutput( "Testing", 111 );

        $po->addCategory( "Foo", "FOO" );

        $this->assertLinksUpdate( $t, $po, 'categorylinks', 'cl_to, cl_sortkey', 'cl_from = 111', array(
            array( 'Foo', "FOO\nTESTING" ),
        ) );
    }

    public function testUpdate_iwlinks() {
        list( $t, $po ) = $this->makeTitleAndParserOutput( "Testing", 111 );

        $target = Title::makeTitleSafe( NS_MAIN, "Foo", '', 'linksupdatetest' );
        $po->addInterwikiLink( $target );

        $this->assertLinksUpdate( $t, $po, 'iwlinks', 'iwl_prefix, iwl_title', 'iwl_from = 111', array(
            array( 'linksupdatetest', 'Foo' ),
        ) );
    }

    public function testUpdate_templatelinks() {
        list( $t, $po ) = $this->makeTitleAndParserOutput( "Testing", 111 );

        $po->addTemplate( Title::newFromText( "Template:Foo" ), 23, 42 );

        $this->assertLinksUpdate( $t, $po, 'templatelinks', 'tl_namespace, tl_title', 'tl_from = 111', array(
            array( NS_TEMPLATE, 'Foo' ),
        ) );
    }

    public function testUpdate_imagelinks() {
        list( $t, $po ) = $this->makeTitleAndParserOutput( "Testing", 111 );

        $po->addImage( "Foo.png" );

        $this->assertLinksUpdate( $t, $po, 'imagelinks', 'il_to', 'il_from = 111', array(
            array( 'Foo.png' ),
        ) );
    }

    public function testUpdate_langlinks() {
        list( $t, $po ) = $this->makeTitleAndParserOutput( "Testing", 111 );

        $po->addLanguageLink( Title::newFromText( "en:Foo" )->getFullText() );

        $this->assertLinksUpdate( $t, $po, 'langlinks', 'll_lang, ll_title', 'll_from = 111', array(
            array( 'En', 'Foo' ),
        ) );
    }

    public function testUpdate_page_props() {
        list( $t, $po ) = $this->makeTitleAndParserOutput( "Testing", 111 );

        $po->setProperty( "foo", "bar" );

        $this->assertLinksUpdate( $t, $po, 'page_props', 'pp_propname, pp_value', 'pp_page = 111', array(
            array( 'foo', 'bar' ),
        ) );
    }

    // @todo test recursive, too!

    protected function assertLinksUpdate( Title $title, ParserOutput $parserOutput, $table, $fields, $condition, array $expectedRows ) {
        $update = new LinksUpdate( $title, $parserOutput );

        //NOTE: make sure LinksUpdate does not generate warnings when called inside a transaction.
        $update->beginTransaction();
        $update->doUpdate();
        $update->commitTransaction();

        $this->assertSelect( $table, $fields, $condition, $expectedRows );
        return $update;
    }
}