我正在尝试模拟私有静态方法 anotherMethod()
.见下面的代码
I'm trying to mock private static method anotherMethod()
. See code below
public class Util {
public static String method(){
return anotherMethod();
}
private static String anotherMethod() {
throw new RuntimeException(); // logic was replaced with exception.
}
}
这是我的测试代码
@PrepareForTest(Util.class)
public class UtilTest extends PowerMockTestCase {
@Test
public void should_prevent_invoking_of_private_method_but_return_result_of_it() throws Exception {
PowerMockito.mockStatic(Util.class);
PowerMockito.when(Util.class, "anotherMethod").thenReturn("abc");
String retrieved = Util.method();
assertNotNull(retrieved);
assertEquals(retrieved, "abc");
}
}
但是我运行的每一个图块都会出现这个异常
But every tile I run it I get this exception
java.lang.AssertionError: expected object to not be null
我想我在嘲笑东西方面做错了.有什么想法可以解决吗?
I suppose that I'm doing something wrong with mocking stuff. Any ideas how can I fix it?
为此,您可以使用 PowerMockito.spy(...)
和 PowerMockito.doReturn(...)
.
To to this, you can use PowerMockito.spy(...)
and PowerMockito.doReturn(...)
.
此外,您必须在测试类中指定 PowerMock 运行器,并准备测试类,如下所示:
Moreover, you have to specify the PowerMock runner at your test class, and prepare the class for testing, as follows:
@PrepareForTest(Util.class)
@RunWith(PowerMockRunner.class)
public class UtilTest {
@Test
public void testMethod() throws Exception {
PowerMockito.spy(Util.class);
PowerMockito.doReturn("abc").when(Util.class, "anotherMethod");
String retrieved = Util.method();
Assert.assertNotNull(retrieved);
Assert.assertEquals(retrieved, "abc");
}
}
希望对你有帮助.
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