/**
  * Test for PMA\libraries\Index_Column
  *
  * @return void
  */
 public function testColumns()
 {
     $index = new PMA\libraries\Index();
     $index->addColumns($this->_params['columns']);
     $index_columns = $index->getColumns();
     $index_column = $index_columns['column1'];
     $this->assertEquals('column1', $index_column->getName());
     $this->assertEquals('index1', $index_column->getSeqInIndex());
     $this->assertEquals('Collation1', $index_column->getCollation());
     $this->assertEquals('Cardinality1', $index_column->getCardinality());
 }