assertEquals("query1 query2",
                getQuery("", new String[] { "query1", "query2" }, Collections.emptyMap(), Collections.emptyMap(), false));
    }

    @Test
    public void test_fields() {
        final Map<String, String[]> fields = Collections.singletonMap("title", new String[] { "test" });
        assertEquals("title:\"test\"", getQuery("", new String[0], fields, Collections.emptyMap(), false));

        String testField = "field999";

        // Warm up
        for (int i = 0; i < 100; i++) {
            queryFieldConfig.isSortField(testField);
        }

        // Measure Set-based lookup (current implementation)
        long setStartTime = System.nanoTime();
        for (int i = 0; i < 10000; i++) {
            queryFieldConfig.isSortField(testField);
        }

        String testField = "field999";

        // Warm up
        for (int i = 0; i < 100; i++) {
            queryCommand.isSearchField(testField);
        }

        // Measure Set-based lookup
        long startTime = System.nanoTime();
        for (int i = 0; i < 10000; i++) {
            queryCommand.isSearchField(testField);
        }