public function testAddGetCustomNumericFunction()
{
$this->configuration->addCustomNumericFunction('FunctionName', __CLASS__);
$this->assertSame(__CLASS__, $this->configuration->getCustomNumericFunction('FunctionName'));
$this->assertSame(null, $this->configuration->getCustomNumericFunction('NonExistingFunction'));
$this->configuration->setCustomNumericFunctions(array('OtherFunctionName' => __CLASS__));
$this->assertSame(__CLASS__, $this->configuration->getCustomNumericFunction('OtherFunctionName'));
$this->setExpectedException('Doctrine\\ORM\\ORMException');
$this->configuration->addCustomNumericFunction('abs', __CLASS__);
}