assertThat(result, is(srcString.length()));
        assertThat(writer.toString(), is(srcString));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testBytesToOs() throws Exception {
        final int result = copy(srcBytes, os);
        assertThat(result, is(srcBytes.length));
        assertThat(os.toByteArray(), is(srcBytes));
    }

    /**
     * @throws Exception