public function testSetColumn()
{
$grid = new Datagrid();
$this->assertEquals(array(), $grid->getColumns());
$col = $this->getMockForAbstractClass('Zf2datatable\\Column\\AbstractColumn');
$col->setUniqueId('myUniqueId');
$col2 = $this->getMockForAbstractClass('Zf2datatable\\Column\\AbstractColumn');
$col2->setUniqueId('myUniqueId2');
$grid->setColumns(array($col, $col2));
$this->assertCount(2, $grid->getColumns());
$this->assertEquals($col, $grid->getColumnByUniqueId('myUniqueId'));
$this->assertEquals($col2, $grid->getColumnByUniqueId('myUniqueId2'));
}
