我正在尝试使用Powermock和Mockito来模拟一个void静态方法来抛出异常,如下所示。但我遇到了一个问题。除非我使用相同的参数对Adder.add()进行两次调用,否则不会抛出模拟的 IOException 。
I am trying to use Powermock and Mockito to mock a void static method to throw exception as below. But I met a problem. Unless I make the two invocations of Adder.add() with the same argument, the mocked IOException won't be thrown.
BTW,我添加了 @RunWith(PowerMockRunner.class)和 @PrepareForTest(Adder.class)到单元测试类。
BTW, I've added @RunWith(PowerMockRunner.class) and @PrepareForTest(Adder.class) to the unit test class.
class Adder{ public static void add(int i) throws IOException{ return; } } @Test public void testAdder() throws IOException{ PowerMockito.mockStatic(Adder.class); PowerMockito.doThrow(new IOException()).when(Adder.class); Adder.add(12); try { Adder.add(11); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } // assert things }提前致谢。 :)
答案如下。
咨询后 code.google/p/powermock/issues/detail?id= 278 ,实际上上面的Adder.add(12)是设置模拟静态方法的一部分。这意味着在使用参数12调用Adder.add()时,将抛出IOException。这很难理解,对吧? :)所以它应该写成如下。
After consulting here code.google/p/powermock/issues/detail?id=278 , in fact Adder.add(12) above is part of setting up mock static method. It means when invoking Adder.add() with argument 12, IOException will be thrown. It is hard to understand, right? :) So it should be written as below.
PowerMockito.mockStatic(Adder.class); PowerMockito.doThrow(new IOException()).when(Adder.class); Adder.add(anyInt());推荐答案
答案如下。
在此处咨询后 code.google/p/powermock/issues/detail?id=278 ,实际上上面的Adder.add(12)是设置模拟静态方法的一部分。这意味着在使用参数12调用Adder.add()时,将抛出IOException。这很难理解,对吧? :)所以它应该写成如下。
After consulting here code.google/p/powermock/issues/detail?id=278 , in fact Adder.add(12) above is part of setting up mock static method. It means when invoking Adder.add() with argument 12, IOException will be thrown. It is hard to understand, right? :) So it should be written as below.
PowerMockito.mockStatic(Adder.class); PowerMockito.doThrow(new IOException()).when(Adder.class); Adder.add(anyInt());编辑: 链接已死,请尝试互联网档案一个而不是。
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如何使用Powermock模拟void静态方法抛出异常?
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