assertThat(option.excludePropertyNames.size(), is(1));
        assertThat(option.excludePropertyNames.get(0), is("hoge"));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testPrefix() throws Exception {
        final CopyOptions option = new CopyOptions();
        assertThat(option.prefix(BeanNames.search_()), is(sameInstance(option)));
        assertThat(option.prefix, is("search_"));
    }