getTitleFactory()->newFromText( 'FooTitle' ); $page = UtilityFactory::getInstance()->newPageCreator()->createPage( $title ); $instance = new TitleFactory(); $input = [ $page->getPage()->getId() ]; $out = $instance->newFromIDs( $input ); $this->assertCount( 1, $out ); $this->assertIsArray( $out ); $this->assertInstanceOf( Title::class, $out[0] ); $this->assertEquals( $title->getId(), $out[0]->getId() ); } }