PhpOffice\PhpPresentation\Shape\Chart\Axis::setFormatCode PHP Метод

    public function setFormatCode($value = '')
    {
        $this->formatCode = $value;
        return $this;
    }

 public function testFormatCode()
 {
     $object = new Axis();
     $this->assertInstanceOf('PhpOffice\\PhpPresentation\\Shape\\Chart\\Axis', $object->setFormatCode());
     $this->assertEquals('', $object->getFormatCode());
     $this->assertInstanceOf('PhpOffice\\PhpPresentation\\Shape\\Chart\\Axis', $object->setFormatCode('AAAA'));
     $this->assertEquals('AAAA', $object->getFormatCode());
 }