assertNull(v.get("something"));
assertEquals(1D, v.get("1"));
assertEquals(5D, v.get("5"));
assertEquals(15D, v.get("15"));
Input ci = load.getChildImplementation("1");
assertEquals(1D, ci.value());
ci = load.getChildImplementation("5");
assertEquals(5D, ci.value());
ci = load.getChildImplementation("15");
assertEquals(15D, ci.value());
}