public void test_prefix() {
UniqueIdSupplier test = new UniqueIdSupplier("Prefixing");
assertEquals(UniqueId.parse("Prefixing~A-1"), test.getWithValuePrefix("A-"));
assertEquals(UniqueId.parse("Prefixing~A-2"), test.getWithValuePrefix("A-"));
assertEquals(UniqueId.parse("Prefixing~B-3"), test.getWithValuePrefix("B-"));
}
