Map.of("_default", List.of("*aaa:*bbb*")), //
                Set.of("aaa:*bbb"), //
                buildQuery("aaa:*bbb*"));
    }

    public void test_build_phrase() {
        setQueryType("bool");
        assertQueryContext(

        source.put("aaa", "");
        source.put("bbb", "");
        assertFalse(fessConfig.validateIndexRequiredFields(source));
        source.put("aaa", "");
        source.put("bbb", "a");
        assertFalse(fessConfig.validateIndexRequiredFields(source));
        source.put("aaa", " ");
        source.put("bbb", "a");
        assertFalse(fessConfig.validateIndexRequiredFields(source));
        source.put("aaa", "a");

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