Webmozart\Console\Api\Formatter\StyleSet::isEmpty PHP Method

    public function isEmpty()
    {
        return 0 === count($this->styles);
    }

 public function testIsEmpty()
 {
     $styleSet = new StyleSet();
     $this->assertTrue($styleSet->isEmpty());
     $styleSet->add(Style::tag('style'));
     $this->assertFalse($styleSet->isEmpty());
 }