public function testSumValues()
{
$collection = new Collection();
//Add fake items to collection
$model1 = Mockery::mock('Mookofe\\LaravelSupport\\Model');
$model2 = Mockery::mock('Mookofe\\LaravelSupport\\Model');
$model1->shouldReceive('delete')->once()->andReturn(null);
$model2->shouldReceive('delete')->once()->andReturn(null);
$collection->add($model1);
$collection->add($model2);
//Delete items
$collection->delete();
}
