@Test
public void symbolValueFromObject() {

    Set<String> netSet = Collections.singleton("net");
    Set<String> fooSet = Collections.singleton("foo");
    assertEquals(Collections.emptySet(), SymbolLookup.getSymbolValue("some-string"));
    FishingNet fishingNet = new FishingNet();
    assertEquals(netSet, SymbolLookup.getSymbolValue(fishingNet));
    assertEquals(netSet, SymbolLookup.getSymbolValue(fishingNetDescriptor));
    assertEquals(fooSet, SymbolLookup.getSymbolValue(foo));
}