如何使用 EasyMock 为新关键字编写期望语句？

Question

我想只使用 EasyMock 为 filter = new Simple(A.ATTRIBUTE_ACTIVE, Operator.EQUALS, Boolean.TRUE); 行编写期望语句。

//SingleLimit.java
private Limitation filter;

protected final Limitation getBaseLimitation() {
    Validate.notNull(type);
    GroupClass Group = new GroupClass(GroupTypeClass.SELECTOR);
    if (Activatable.class.isAssignableFrom(typeListed)) {
        if (A.class.isAssignableFrom(type)) {
        //expect statement for below line
        filter = new Simple(A.ATTRIBUTE_ACTIVE, Operator.EQUALS, Boolean.TRUE); 
        }
     }
    }


   //Simple.java
   public class Simple implements Serializable, Limitation
   {
     public Simple(String path, Operator operator, Object value) {
    this(path, operator, new Object[]{value});
   }
    }

任何帮助将不胜感激

Answer 1

我将创建一个创建简单对象的新类。

public class SimpleFactory {
    public Simple createSimple(....) {
        return new Simple(....);
    }
}

将这个工厂注入你的类或将其作为参数传递

public YourClazz(SimpleFactory simpleFactory) {

    //constructor 
    this.simpleFactory = simpleFactory;

    protected final Limitation getBaseLimitation() {
        ///...
        //filter = new Simple(A.ATTRIBUTE_ACTIVE, Operator.EQUALS, Boolean.TRUE);
        //change this to
        filter = simpleFactory.createSimple(A.ATTRIBUTE_ACTIVE, Operator.EQUALS, Boolean.TRUE);
    }

    //or pass as parameter
    protected final Limitation getBaseLimitation(SimpleFactory simpleFacotry) {
        ///...
        //filter = new Simple(A.ATTRIBUTE_ACTIVE, Operator.EQUALS, Boolean.TRUE);
        //change this to
        filter = simpleFactory.createSimple(A.ATTRIBUTE_ACTIVE, Operator.EQUALS, Boolean.TRUE);
    }    
}

现在在您的测试代码中创建一个 simpleFactory 的模拟。

//2019/11/16 编辑另一种解决方案

如果你不能创建其他类，在你的类中创建新方法，然后用它来创建新的简单对象：

    public YourClazz {

        protected Simple createSimple(....) {
            return new Simple(....);
        }

        protected final Limitation getBaseLimitation() {
            //...
            //filter = new Simple(A.ATTRIBUTE_ACTIVE, Operator.EQUALS, Boolean.TRUE);
            //change this to
            filter = createSimple(A.ATTRIBUTE_ACTIVE, Operator.EQUALS, Boolean.TRUE);
    //...
        }    
}

现在为了测试，您可以创建类的部分模拟并模拟 createSimple 方法：

YourClazz mock = partialMockBuilder(YourClazz.class)
      .addMockedMethod("createSimple").createMock();


Simple expectedSimple = new Simple(....);      

expect(mock.createSimple(.....).andReturn(expectedSimple);
replay(mock);