public UniqueRuleItemNodePath getUniqueItem(final String itemType) {
        return uniqueItems.get(itemType);
    }
@Test
    void assertGetUniqueItem() {
        UniqueRuleItemNodePath uniqueRulePath = ruleNodePath.getUniqueItem("tables");
        assertThat(uniqueRulePath.getPath(), is("tables"));
        assertTrue(uniqueRulePath.isValidatedPath("/metadata/db/rules/foo/tables/versions/1234"));
        UniqueRuleItemNodePath uniqueRulePathWithType = ruleNodePath.getUniqueItem("type");
        assertThat(uniqueRulePathWithType.getPath(), is("tables/type"));
        assertTrue(uniqueRulePathWithType.isActiveVersionPath("/metadata/db/rules/foo/tables/type/active_version"));
    }