PhpBrew\BuildSettings\BuildSettings::isEnabledVariant PHP Метод

    public function isEnabledVariant($name)
    {
        return isset($this->variants[$name]);
    }

 public function testEnableVariant()
 {
     $settings = new BuildSettings();
     $settings->enableVariant('curl', true);
     ok($settings->isEnabledVariant('curl'));
 }