setProperty("locale.valid", "en_US");
setProperty("locale.invalid", "no_PO");
setProperty("array.of.strings", "[\"one\",\"two\",\"three\"]");
setProperty("array.of.ints", "[\"1\",\"2\",\"3\"]");
setProperty("map.of.int.float", "{\"1\":\"10\",\"2\":\"20\"}");
configuration = new ConstrettoBuilder().createSystemPropertiesStore().getConfiguration();
}