public function createChildOperation()
{
$operation = new Operation();
$operation->setParent($this);
$this->_operations[] = $operation;
return $operation;
}
public function testAsArray()
{
$operation = new Operation();
$operation->setFieldName("name");
$operation->setOperator("eq");
$operation->addValue("one");
$operation->addValue("two");
$expected = ['field_name' => 'name', 'operator' => 'eq', 'values' => ['one', 'two']];
$this->assertEquals($expected, $operation->toArray());
}