Merge "include unit test for enhanced error handling" into rvc-dev am: 42472cb3 am: 117ed1b6

        assertEquivalent(client, deser);

    }

    @Test(expected = XmlPullParserException.class)

    public void testReadEmptyFile_ThrowException() throws XmlPullParserException, IOException {

        ByteArrayOutputStream output = new ByteArrayOutputStream();

        XmlSerializer serializer = XmlPullParserFactory.newInstance().newSerializer();

        serializer.setOutput(output, Encoding.UTF_8.name());

        // create empty xml document

        serializer.startDocument(null, true);

        serializer.endDocument();

        serializer.flush();

        ByteArrayInputStream input = new ByteArrayInputStream(output.toByteArray());

        XmlPullParser parser = XmlPullParserFactory.newInstance().newPullParser();

        parser.setInput(input, Encoding.UTF_8.name());

        SliceClientPermissions.createFrom(parser, mock(DirtyTracker.class));

        // Should throw exception since the xml is empty

    }

    private void assertEquivalent(SliceClientPermissions o1, SliceClientPermissions o2) {

        assertEquals(o1.getPkg(), o2.getPkg());

        ArrayList<SliceAuthority> a1 = new ArrayList<>(o1.getAuthorities());