public function testAddAttribute()
{
$tag = new Tag();
$tag->disableAutoDump();
$tag->addAttribute('test', 'value');
$this->assertEquals('value', $tag->getAttribute('test'));
$this->assertEquals(['test' => 'value', 'class' => []], $tag->getAttributes()->toArray());
$tag->addAttributes(['test2' => 'value2', 'test' => 'value3']);
$this->assertEquals('value3', $tag->getAttribute('test'));
$this->assertEquals(['test' => 'value3', 'class' => [], 'test2' => 'value2'], $tag->getAttributes()->toArray());
}
