/**
* @covers ::__construct
* @covers ::all
*/
public function testConstruct()
{
$columns = array(10, 20);
$sql = new SQL\Columns($columns);
$this->assertEquals(null, $sql->getContent());
$this->assertEquals($columns, $sql->all());
}
/**
* Render Columns object
* @param SQL\Columns $item
* @return string
*/
public static function renderItem(SQL\Columns $item)
{
return Compiler::braced(Arr::join(', ', Arr::map(__NAMESPACE__ . '\\Compiler::name', $item->all())));
}