@Test
    void testInConditionOneValue() {
        final ExpressionOperator.Builder and = ExpressionOperator.builder();
        and.addTerm(StatisticStoreDoc.FIELD_NAME_DATE_TIME, Condition.BETWEEN, "1,2");
        and.addTerm("term1field", Condition.IN, "123456789");

        final FilterTermsTree filterTermsTree = FilterTermsTreeBuilder.convertExpresionItemsTree(and.build(),
                fieldBlackList);

        final TermNode term2Node = (TermNode) filterTermsTree.getRootNode();

        assertThat(term2Node.getTag()).isEqualTo("term1field");
        assertThat(term2Node.getValue()).isEqualTo("123456789");

    }
Should fail as a non-datetime field is using a condition other than
equals
stroom-statistics/stroom-statistics-impl-sql/src/test/java/stroom/statistics/impl/sql/search/TestFilterTermsTreeBuilder.java