如何返回模拟方法的参数？

Question

大家好我怎样才能使它在PHPUnit模拟方法返回其传递的参数？

E.g：

$redirector->expects($this->once())->method('gotoUrl')->will($this->returnValue($argument)); 

Answer 1

由于每PHPUnit manual：

$stub->expects($this->any()) 
    ->method('doSomething') 
    ->will($this->returnArgument(0)); 

Answer 2

$redirector->expects($this->once()) 
      ->method('gotoUrl') 
      ->will($this->returnCallback(function() { 
       $args = func_get_args(); 
       return $args[0]; // or w/e 
      ));