public function testRemoveSubcolumns()
{
$col = new Column('foo');
$col->addSubColumn($scol1 = new Column('bar'));
$col->addSubColumn($scol2 = new Column('baz'));
$col->removeSubColumn($scol1);
$this->assertEquals(array($scol2), $col->getSubColumns());
}
public function testAddSubColumn()
{
$this->builder->addColumn('foo');
$this->builder->addSubColumn('foo', 'foo.bar');
$filter = $this->builder->getFilter();
$col = new Column('foo');
$col->addSubColumn(new Column('foo.bar'));
$this->assertEquals(array($col), $filter->getColumns());
$this->assertEquals($col, $filter->getColumn('foo'));
}