public static TestCase ofAggregate(final String testVariantName,
                                           final Val expectedReturn,
                                           final Val... values) {
            return ofAggregate(testVariantName, expectedReturn, Arrays.asList(values));
        }
Variant for where the return value is a ValString
stroom-query/stroom-query-language/src/test/java/stroom/query/language/functions/AbstractFunctionTest.java