如何使用when...then模拟层次结构getter

import org.mockito.Mockito;

// 模拟层次结构对象的类
class HierarchyObject {
    public String getLevel1() {
        return "Level 1";
    }
    
    public String getLevel2() {
        return "Level 2";
    }
    
    public String getLevel3() {
        return "Level 3";
    }
}

public class HierarchyObjectMockingExample {
    public static void main(String[] args) {
        // 创建模拟对象
        HierarchyObject mockObject = Mockito.mock(HierarchyObject.class);
        
        // 设置模拟对象的行为
        Mockito.when(mockObject.getLevel1()).thenReturn("Mock Level 1");
        Mockito.when(mockObject.getLevel2()).thenReturn("Mock Level 2");
        Mockito.when(mockObject.getLevel3()).thenReturn("Mock Level 3");
        
        // 测试模拟对象的行为
        System.out.println(mockObject.getLevel1());  // 输出: Mock Level 1
        System.out.println(mockObject.getLevel2());  // 输出: Mock Level 2
        System.out.println(mockObject.getLevel3());  // 输出: Mock Level 3
    }
}