Esme Povirk (@madewokherd) commented about dlls/gdiplus/tests/image.c:
stat = pGdipCreateEffect(BlurEffectGuid, NULL); expect(InvalidParameter, stat);
- stat = pGdipGetEffectParameterSize(NULL, NULL);
- expect(InvalidParameter, stat);
- stat = pGdipGetEffectParameterSize(effect, NULL);
`effect` is NULL here, so this test is redundant.