LinkRendererTest.php

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<?php

use MediaWiki\Linker\LinkRenderer;
use MediaWiki\Linker\LinkRendererFactory;
use MediaWiki\MediaWikiServices;

class LinkRendererTest extends MediaWikiLangTestCase {

    private $factory;

    public function setUp() {
        parent::setUp();
        $this->setMwGlobals( [
            'wgArticlePath' => '/wiki/$1',
            'wgServer' => '//example.org',
            'wgCanonicalServer' => 'http://example.org',
            'wgScriptPath' => '/w',
            'wgScript' => '/w/index.php',
        ] );
        $this->factory = MediaWikiServices::getInstance()->getLinkRendererFactory();

    }

    public function testMergeAttribs() {
        $target = new TitleValue( NS_SPECIAL, 'Blankpage' );
        $linkRenderer = $this->factory->create();
        $link = $linkRenderer->makeBrokenLink( $target, null, [
            // Appended to class
            'class' => 'foobar',
            // Suppresses href attribute
            'href' => false,
            // Extra attribute
            'bar' => 'baz'
        ] );
        $this->assertEquals(
            '<a href="/wiki/Special:BlankPage" class="new foobar" '
            . 'title="Special:BlankPage (page does not exist)" bar="baz">'
            . 'Special:BlankPage</a>',
            $link
        );
    }

    public function testMakeKnownLink() {
        $target = new TitleValue( NS_MAIN, 'Foobar' );
        $linkRenderer = $this->factory->create();

        // Query added
        $this->assertEquals(
            '<a href="/w/index.php?title=Foobar&amp;foo=bar" '. 'title="Foobar">Foobar</a>',
            $linkRenderer->makeKnownLink( $target, null, [], [ 'foo' => 'bar' ] )
        );

        // forcearticlepath
        $linkRenderer->setForceArticlePath( true );
        $this->assertEquals(
            '<a href="/wiki/Foobar?foo=bar" title="Foobar">Foobar</a>',
            $linkRenderer->makeKnownLink( $target, null, [], [ 'foo' => 'bar' ] )
        );

        // expand = HTTPS
        $linkRenderer->setForceArticlePath( false );
        $linkRenderer->setExpandURLs( PROTO_HTTPS );
        $this->assertEquals(
            '<a href="https://example.org/wiki/Foobar" title="Foobar">Foobar</a>',
            $linkRenderer->makeKnownLink( $target )
        );
    }

    public function testMakeBrokenLink() {
        $target = new TitleValue( NS_MAIN, 'Foobar' );
        $special = new TitleValue( NS_SPECIAL, 'Foobar' );
        $linkRenderer = $this->factory->create();

        // action=edit&redlink=1 added
        $this->assertEquals(
            '<a href="/w/index.php?title=Foobar&amp;action=edit&amp;redlink=1" '
            . 'class="new" title="Foobar (page does not exist)">Foobar</a>',
            $linkRenderer->makeBrokenLink( $target )
        );

        // action=edit&redlink=1 not added due to action query parameter
        $this->assertEquals(
            '<a href="/w/index.php?title=Foobar&amp;action=foobar" class="new" '
            . 'title="Foobar (page does not exist)">Foobar</a>',
            $linkRenderer->makeBrokenLink( $target, null, [], [ 'action' => 'foobar' ] )
        );

        // action=edit&redlink=1 not added due to NS_SPECIAL
        $this->assertEquals(
            '<a href="/wiki/Special:Foobar" class="new" title="Special:Foobar '
            . '(page does not exist)">Special:Foobar</a>',
            $linkRenderer->makeBrokenLink( $special )
        );

        // fragment stripped
        $this->assertEquals(
            '<a href="/w/index.php?title=Foobar&amp;action=edit&amp;redlink=1" '
            . 'class="new" title="Foobar (page does not exist)">Foobar</a>',
            $linkRenderer->makeBrokenLink( $target->createFragmentTarget( 'foobar' ) )
        );
    }

    public function testMakeLink() {
        $linkRenderer = $this->factory->create();
        $foobar = new TitleValue( NS_SPECIAL, 'Foobar' );
        $blankpage = new TitleValue( NS_SPECIAL, 'Blankpage' );
        $this->assertEquals(
            '<a href="/wiki/Special:Foobar" class="new" title="Special:Foobar '
            . '(page does not exist)">foo</a>',
            $linkRenderer->makeLink( $foobar, 'foo' )
        );

        $this->assertEquals(
            '<a href="/wiki/Special:BlankPage" title="Special:BlankPage">blank</a>',
            $linkRenderer->makeLink( $blankpage, 'blank' )
        );

        $this->assertEquals(
            '<a href="/wiki/Special:Foobar" class="new" title="Special:Foobar '
            . '(page does not exist)">&lt;script&gt;evil()&lt;/script&gt;</a>',
            $linkRenderer->makeLink( $foobar, '<script>evil()</script>' )
        );

        $this->assertEquals(
            '<a href="/wiki/Special:Foobar" class="new" title="Special:Foobar '
            . '(page does not exist)"><script>evil()</script></a>',
            $linkRenderer->makeLink( $foobar, new HtmlArmor( '<script>evil()</script>' ) )
        );
    }

    public function testGetLinkClasses() {
        $wanCache = ObjectCache::getMainWANInstance();
        $titleFormatter = MediaWikiServices::getInstance()->getTitleFormatter();
        $linkCache = new LinkCache( $titleFormatter, $wanCache );
        $foobarTitle = new TitleValue( NS_MAIN, 'FooBar' );
        $redirectTitle = new TitleValue( NS_MAIN, 'Redirect' );
        $userTitle = new TitleValue( NS_USER, 'Someuser' );
        $linkCache->addGoodLinkObj(
            1, // id
            $foobarTitle,
            10, // len
            0 // redir
        );
        $linkCache->addGoodLinkObj(
            2, // id
            $redirectTitle,
            10, // len
            1 // redir
        );

        $linkCache->addGoodLinkObj(
            3, // id
            $userTitle,
            10, // len
            0 // redir
        );

        $linkRenderer = new LinkRenderer( $titleFormatter, $linkCache );
        $linkRenderer->setStubThreshold( 0 );
        $this->assertEquals(
            '',
            $linkRenderer->getLinkClasses( $foobarTitle )
        );

        $linkRenderer->setStubThreshold( 20 );
        $this->assertEquals(
            'stub',
            $linkRenderer->getLinkClasses( $foobarTitle )
        );

        $linkRenderer->setStubThreshold( 0 );
        $this->assertEquals(
            'mw-redirect',
            $linkRenderer->getLinkClasses( $redirectTitle )
        );

        $linkRenderer->setStubThreshold( 20 );
        $this->assertEquals(
            '',
            $linkRenderer->getLinkClasses( $userTitle )
        );
    }

}