使用PowerMockito.whenNew()不会被模拟并调用原始方法 [英] Using PowerMockito.whenNew() is not getting mocked and original method is called
问题描述
我的代码如下所示:
Class A {
public boolean myMethod(someargs) {
MyQueryClass query = new MyQueryClass();
Long id = query.getNextId();
// some more code
}
}
Class MyQueryClass {
....
public Long getNextId() {
//lot of DB code, execute some DB query
return id;
}
}
现在我正在为<$ c编写测试$ C> A.myMethod(someargs)。我想跳过真正的方法 query.getNextId()
,而是返回一个存根值。基本上,我想模拟 MyQueryClass
。
Now I'am writing a test for A.myMethod(someargs)
. I want to skip the real method query.getNextId()
and instead return a stub value. Basically, I want to mock MyQueryClass
.
所以在我的测试用例中,我使用过:
So in my test case, I have used:
MyQueryClass query = PowerMockito.mock(MyQueryClass.class);
PowerMockito.whenNew(MyQueryClass.class).withNoArguments().thenReturn(query);
when(query.getNextId()).thenReturn(1000000L);
boolean b = A.getInstance().myMethod(args);
//asserts
我用 @RunWith (TestMockRunner.class)
和 @PrepareForTest({MyQueryClass.class})
在我的测试类的开头。
I used @RunWith(PowerMockRunner.class)
and @PrepareForTest({MyQueryClass.class})
in the beginning of my test class.
但是当我调试测试时,它仍在调用 MyQueryClass $的实际方法
getNextId()
c $ c> class。
But when I debug the test, it is still calling the real method getNextId()
of the MyQueryClass
class.
我在这里缺少什么?任何人都可以帮忙,因为我是Mockito和PowerMockito的新手。
What am I missing here? Can anyone help as I am new to Mockito and PowerMockito.
推荐答案
你需要将类放在构造函数所在的位置将调用 @PrepareForTest
注释而不是正在构造的类 - 请参阅模拟新对象的构造。
You need to put the class where the constructor is called into the @PrepareForTest
annotation instead of the class which is being constructed - see Mock construction of new objects.
在你的情况下:
✗ @PrepareForTest(MyQueryClass.class)
✓ @PrepareForTest( A.class)
更一般:
✗ @PrepareForTest(NewInstanceClass.class)
✓ @PrepareForTest(ClassThatCreatesTheNewInstance.class)
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