RepoGroupTest.php

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<?php
class RepoGroupTest extends MediaWikiTestCase {

    function testHasForeignRepoNegative() {
        $this->setMwGlobals( 'wgForeignFileRepos', array() );
        RepoGroup::destroySingleton();
        FileBackendGroup::destroySingleton();
        $this->assertFalse( RepoGroup::singleton()->hasForeignRepos() );
    }

    function testHasForeignRepoPositive() {
        $this->setUpForeignRepo();
        $this->assertTrue( RepoGroup::singleton()->hasForeignRepos() );
    }

    function testForEachForeignRepo() {
        $this->setUpForeignRepo();
        $fakeCallback = $this->getMock( 'RepoGroupTestHelper' );
        $fakeCallback->expects( $this->once() )->method( 'callback' );
        RepoGroup::singleton()->forEachForeignRepo(
            array( $fakeCallback, 'callback' ), array( array() ) );
    }

    function testForEachForeignRepoNone() {
        $this->setMwGlobals( 'wgForeignFileRepos', array() );
        RepoGroup::destroySingleton();
        FileBackendGroup::destroySingleton();
        $fakeCallback = $this->getMock( 'RepoGroupTestHelper' );
        $fakeCallback->expects( $this->never() )->method( 'callback' );
        RepoGroup::singleton()->forEachForeignRepo(
            array( $fakeCallback, 'callback' ), array( array() ) );
    }

    private function setUpForeignRepo() {
        global $wgUploadDirectory;
        $this->setMwGlobals( 'wgForeignFileRepos', array( array(
            'class' => 'ForeignAPIRepo',
            'name' => 'wikimediacommons',
            'backend' => 'wikimediacommons-backend',
            'apibase' => 'https://commons.wikimedia.org/w/api.php',
            'hashLevels' => 2,
            'fetchDescription' => true,
            'descriptionCacheExpiry' => 43200,
            'apiThumbCacheExpiry' => 86400,
            'directory' => $wgUploadDirectory
        ) ) );
        RepoGroup::destroySingleton();
        FileBackendGroup::destroySingleton();
    }
}

class RepoGroupTestHelper {
    function callback( FileRepo $repo, array $foo ) {
        return true;
    }
}