EasyMock：在java中模拟一个构造函数调用 [英] EasyMock: Mock out a constructor call in java

问题描述

我在这个板上看过类似的问题，但没有人回答我的问题。这听起来很奇怪，但是可以在你正在嘲笑的对象上模拟一个构造函数调用。

I have a looked at similar questions on this board, but none of them answer my question. This sound strange, but is it possible to mock out a constructor call on the object you're mocking.

示例：

class RealGuy {

   ....
   public void someMethod(Customer customer) {
     Customer customer = new Customer(145);
   }
}
class MyUnitTest() {
  public Customer customerMock = createMock(Customer.class)
  public void test1() {
    //i can inject the mock object, but it's still calling the constuctor
    realGuyobj.someMethod(customerMock);
    //the constructor call for constructor makes database connections, and such.
  }
}

我如何期待构造函数调用？我可以更改Customer构造函数调用以使用newInstance，但我不确定这是否有帮助。我无法控制新客户（145）构造函数的主体是什么。

How can I expect a constructor call? I can change the Customer constructor call to use newInstance, but im not sure if that will help. I have no control over what the body of the new Customer(145) constructor does.

这可能吗？

推荐答案

您可以使用EasyMock 3.0及以上版本。

you can do so with EasyMock 3.0 and above.

Customer cust = createMockBuilder(Customer.class)
     .withConstructor(int.class)
     .withArgs(145)
     .addMockedMethod("someMethod")
     .createMock();

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