public function testAlias() { $metaData = new MetaData(); $this->assertInstanceOf(BaseMetaData::class, $metaData->alias('title', 'og:title')); $this->assertInstanceOf(BaseMetaData::class, $metaData->alias('title', ['twitter:title'])); $this->assertInstanceOf(BaseMetaData::class, $metaData->addTitle('First title')); $this->assertInstanceOf(BaseMetaData::class, $metaData->addTitle('Second title')); $this->assertEquals(['First title', 'Second title'], $metaData->getTitle()); $this->assertEquals(['First title', 'Second title'], $metaData->getOgTitle()); $this->assertEquals(['First title', 'Second title'], $metaData->getTwitterTitle()); }