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<?php

/**
 * @group Skin
 */
class SideBarTest extends MediaWikiLangTestCase {

	/** A skin template, reinitialized before each test */
	private $skin;
	/** Local cache for sidebar messages */
	private $messages;

	function __construct() {
		parent::__construct();
	}

	/** Build $this->messages array */
	private function initMessagesHref() {
		# List of default messages for the sidebar:
		$URL_messages = array(
			'mainpage',
			'portal-url',
			'currentevents-url',
			'recentchanges-url',
			'randompage-url',
			'helppage',
		);

		foreach( $URL_messages as $m ) {
			$titleName = MessageCache::singleton()->get($m);
			$title = Title::newFromText( $titleName );
			$this->messages[$m]['href'] = $title->getLocalURL();
		}
	}

	function setUp() {
		parent::setUp();
		$this->initMessagesHref();
		$this->skin = new SkinTemplate();
		$this->skin->getContext()->setLanguage( Language::factory( 'en' ) );
	}
	function tearDown() {
		parent::tearDown();
		$this->skin = null;
	}

	/**
	 * Internal helper to test the sidebar
	 * @param $expected
	 * @param $text
	 * @param $message (Default: '')
	 */
	private function assertSideBar( $expected, $text, $message = '' ) {
		$bar = array();
		$this->skin->addToSidebarPlain( $bar, $text );
		$this->assertEquals( $expected, $bar, $message );
	}

	function testSidebarWithOnlyTwoTitles() {
		$this->assertSideBar(
		array(
			'Title1' => array(),
			'Title2' => array(),
		),
'* Title1
* Title2
'
		);
	}

	function testExpandMessages() {
		$this->assertSidebar(
		array( 'Title' => array(
			array(
				'text' => 'Help',
				'href' => $this->messages['helppage']['href'],
				'id' => 'n-help',
				'active' => null
			)
		)),
'* Title
** helppage|help
'
		);
	}

	function testExternalUrlsRequireADescription() {
		$this->assertSidebar(
		array( 'Title' => array(
			# ** http://www.mediawiki.org/| Home
			array(
				'text'   => 'Home',
				'href'   => 'http://www.mediawiki.org/',
				'id'     => 'n-Home',
				'active' => null,
				'rel'    => 'nofollow',
			),
			# ** http://valid.no.desc.org/
			# ... skipped since it is missing a pipe with a description
		)),
'* Title
** http://www.mediawiki.org/| Home
** http://valid.no.desc.org/
'

		);

	}
	/**
	 * bug 33321 - Make sure there's a | after transforming.
	 * @group Database
	 */
	function testTrickyPipe() {
		$this->assertSidebar(
		array( 'Title' => array(
			# The first 2 are skipped
			# Doesn't really test the url properly
			# because it will vary with $wgArticlePath et al.
			# ** Baz|Fred
			array(
				'text'   => 'Fred',
				'href'   => Title::newFromText( 'Baz' )->getLocalUrl(),
				'id'     => 'n-Fred',
				'active' => null,
			),
			array(
				'text'   => 'title-to-display',
				'href'   => Title::newFromText( 'page-to-go-to' )->getLocalUrl(),
				'id'     => 'n-title-to-display',
				'active' => null,
			),
		)),
'* Title
** {{PAGENAME|Foo}}
** Bar
** Baz|Fred
** {{PLURAL:1|page-to-go-to{{int:pipe-separator/en}}title-to-display|branch not taken}}
'
		);

	}


	#### Attributes for external links ##########################
	private function getAttribs( ) {
		# Sidebar text we will use everytime
		$text = '* Title
** http://www.mediawiki.org/| Home';

		$bar = array();
		$this->skin->addToSideBarPlain( $bar, $text );

		return $bar['Title'][0];
	}

	/**
	 * Simple test to verify our helper assertAttribs() is functional
	 * Please note this assume MediaWiki default settings:
	 *   $wgNoFollowLinks = true
	 *   $wgExternalLinkTarget = false
	 */
	function testTestAttributesAssertionHelper() {
		$attribs = $this->getAttribs();

		$this->assertArrayHasKey( 'rel', $attribs );
		$this->assertEquals( 'nofollow', $attribs['rel'] );

		$this->assertArrayNotHasKey( 'target', $attribs );
	}

	/**
	 * Test $wgNoFollowLinks in sidebar
	 */
	function testRespectWgnofollowlinks() {
		global $wgNoFollowLinks;
		$saved = $wgNoFollowLinks;
		$wgNoFollowLinks = false;

		$attribs = $this->getAttribs();
		$this->assertArrayNotHasKey( 'rel', $attribs,
			'External URL in sidebar do not have rel=nofollow when $wgNoFollowLinks = false'
		);

		// Restore global
		$wgNoFollowLinks = $saved;
	}

	/**
	 * Test $wgExternaLinkTarget in sidebar
	 */
	function testRespectExternallinktarget() {
		global $wgExternalLinkTarget;
		$saved = $wgExternalLinkTarget;

		$wgExternalLinkTarget = '_blank';
		$attribs = $this->getAttribs();
		$this->assertArrayHasKey( 'target', $attribs );
		$this->assertEquals( $attribs['target'], '_blank' );

		$wgExternalLinkTarget = '_self';
		$attribs = $this->getAttribs();
		$this->assertArrayHasKey( 'target', $attribs );
		$this->assertEquals( $attribs['target'], '_self' );

		// Restore global
		$wgExternalLinkTarget = $saved;
	}

}