public function testFunctionCallExpressionWithAlias()
{
$rawExpr = array('function' => 'CONCAT', 'args' => array(':firstname', array('function' => 'CONCAT', 'args' => array(' ', ':lastname'))));
$expr = new Expression($rawExpr, 'fullname');
$this->assertEquals('fullname', $expr->getAlias());
$this->assertSame($rawExpr, $expr->getExpression());
$this->assertEquals($rawExpr['function'], $expr->getFunction());
$this->assertTrue(is_array($expr->getFunctionArgs()));
$args1 = $expr->getFunctionArgs();
$this->assertEquals(2, count($args1));
$this->assertEquals(':firstname', $args1[0]);
$this->assertInstanceOf(Expression::clazz(), $args1[1]);
/* @var Expression $fetchSubArg */
$fetchSubArg = $args1[1];
$this->assertFalse($fetchSubArg->getAlias());
$args2 = $fetchSubArg->getFunctionArgs();
$this->assertTrue(is_array($args2));
$this->assertEquals(2, count($args2));
$this->assertEquals(' ', $args2[0]);
$this->assertEquals(':lastname', $args2[1]);
}
