/**
* @covers Fuel\Common\Arr::flatten
* @group Common
*/
public function testFlatten()
{
$indexed = array(array("a"), array("b"), array("c"));
$expected = array("0_0" => "a", "1_0" => "b", "2_0" => "c");
$result = Arr::flatten($indexed, '_');
$this->assertEquals($expected, $result);
}
