simulating exceptions

[Peter Kovac]

Hi,

I need to test this method catch block but couldn't find out how to simulate UnsupportedEncodingException. I'm wondering if it's possible to test this block without changing the code at all.

private ResultObject calcValue (String key)
{
     try
     {
         ...
         String str = URLEncoder.encode (key, "UTF-8") );
         ...
         return ...;
     }
     catch (UnsupportedEncodingException e)
     {
         ... fallback calculations
         ...
         return ... ;
     }
}

Thanks,

[enric jaen]

@RunWith(PowerMockRunner.class)
public class  YourTest { 

@Test
@PrepareForTest(URLEncoder.class)
public void checkCalcValueCatchesException  {
   PowerMock.mockStatic(URLEncoder.class);
   String key="...";
   EasyMock.expect( URLEncoder.encode (key, "UTF-8") ).andThrow(new UnsupportedEncodingException ());
   PowerMock.replay(URLEncoder.class);

   //here call the public method which calls calcValue()

}

}

[Peter Kovac]

Thanks