/**
* @dataProvider instanceProvider
*
* @since 1.0
*
* @param SortExpression $expression
*/
public function testReturnValueOfGetDirection(SortExpression $expression)
{
$direction = $expression->getDirection();
$this->assertInternalType('string', $direction);
$this->assertTrue(in_array($direction, array(SortExpression::DIRECTION_ASCENDING, SortExpression::DIRECTION_DESCENDING)), 'Sort direction is one of the known values');
}
protected function getSerializedSortExpression(SortExpression $expression)
{
$valueArray = array('direction' => $expression->getDirection());
$valueArray = array_merge($valueArray, $this->getExpressionValueSerialization($expression));
return array('objectType' => 'sortExpression', 'sortExpressionType' => $expression->getType(), 'value' => $valueArray);
}