@Test
public void testForMultimap_related() {
Navigator<String> navigator =
Navigators.forMultimap(ImmutableSetMultimap.of("a", "a1", "a", "a2", "b", "b"));
assertEquals(ImmutableSet.of("a1", "a2"), ImmutableSet.copyOf(navigator.related("a")));
assertEquals(ImmutableSet.of("b"), ImmutableSet.copyOf(navigator.related("b")));
assertEquals(ImmutableSet.of(), ImmutableSet.copyOf(navigator.related("c")));
}
@Test
public void testForFunction_Serializable() {
Navigator<Integer> navigator =
SerializationUtils.serializedCopy(
Navigators.forFunction(ImmutableSet.of(1, 2, 3), new MyFun()));
assertEquals(ImmutableSet.of(1, 2, 3), ImmutableSet.copyOf(navigator.domain()));
assertEquals(ImmutableSet.of(2, 2), ImmutableSet.copyOf(navigator.related(1)));
assertEquals(ImmutableSet.of(4, 3), ImmutableSet.copyOf(navigator.related(2)));
assertEquals(ImmutableSet.of(6, 4), ImmutableSet.copyOf(navigator.related(3)));
}
@Test
public void testForFunction() {
Navigator<Integer> navigator =
Navigators.forFunction(
ImmutableSet.of(1, 2, 3),
new Function<Integer, Set<Integer>>() {
public Set<Integer> apply(Integer value) {
return ImmutableSet.of(value * 2, value + 1);
}
});
assertEquals(ImmutableSet.of(1, 2, 3), ImmutableSet.copyOf(navigator.domain()));
assertEquals(ImmutableSet.of(2, 2), ImmutableSet.copyOf(navigator.related(1)));
assertEquals(ImmutableSet.of(4, 3), ImmutableSet.copyOf(navigator.related(2)));
assertEquals(ImmutableSet.of(6, 4), ImmutableSet.copyOf(navigator.related(3)));
}
