@Test
public void test_construction_permutations() {
for (int a = 0; a < 6; a++) {
compare_order(newSet(a), setOf(a));
for (int b = 0; b < 6; b++) {
compare_order(newSet(a, b), setOf(a, b));
for (int c = 0; c < 6; c++) {
compare_order(newSet(a, b, c), setOf(a, b, c));
for (int d = 0; d < 6; d++) {
compare_order(newSet(a, b, c, d), setOf(a, b, c, d));
for (int e = 0; e < 6; e++) {
compare_order(newSet(a, b, c, d, e), setOf(a, b, c, d, e));
for (int f = 0; f < 6; f++) {
Integer[] elements = new Integer[] {a, b, c, d, e, f};
Set<Integer> expected = newSet(elements);
Collection<Integer> collection = Arrays.asList(elements);
// setOf
compare_order(expected, setOf(a, b, c, d, e, f));
// asSet(array)
compare_order(expected, asSet(elements));
// asSet(collection)
compare_order(expected, asSet(collection));
// asSet(iterator)
compare_order(expected, asSet(collection.iterator()));
}
}
}
}
}
}
}
@Test
public void test_asSet_collection() {
assertSame(emptySet(), asSet(Arrays.asList()));
compare_sets(newSet(1), asSet(Arrays.asList(1)));
compare_sets(newSet(1, 2), asSet(Arrays.asList(1, 2)));
compare_sets(newSet(1, 2, 3), asSet(Arrays.asList(1, 2, 3)));
compare_sets(newSet(1, 2, 3, 4), asSet(Arrays.asList(1, 2, 3, 4)));
compare_sets(newSet(1, 2, 3, 4, 5), asSet(Arrays.asList(1, 2, 3, 4, 5)));
compare_sets(newSet(1, 2, 3, 4, 5, 6), asSet(Arrays.asList(1, 2, 3, 4, 5, 6)));
// ConstSet should just be returned as-is.
ConstSet<Integer> set;
set = setOf(1);
assertSame(set, asSet(set));
set = setOf(1, 2);
assertSame(set, asSet(set));
set = setOf(1, 2, 3);
assertSame(set, asSet(set));
set = setOf(1, 2, 3, 4, 5, 6, 7, 8, 9);
assertSame(set, asSet(set));
// However, ConstSortedSet should be converted to a regular ConstSet.
set = sortedSetOf(null, 1);
assertNotSame(set, asSet(set));
}
@Test
public void test_asSet_collection_types() {
assertEquals(BasicSet1.class, asSet(Arrays.asList(1)).getClass());
assertEquals(BasicSetN.class, asSet(Arrays.asList(1, 2)).getClass());
assertEquals(BasicSetN.class, asSet(Arrays.asList(1, 2, 3)).getClass());
assertEquals(BasicSetN.class, asSet(Arrays.asList(1, 2, 3, 4)).getClass());
assertEquals(BasicSetN.class, asSet(Arrays.asList(1, 2, 3, 4, 5)).getClass());
assertEquals(BasicSetN.class, asSet(Arrays.asList(1, 2, 3, 4, 5, 6)).getClass());
assertEquals(BasicSetN.class, asSet(Arrays.asList(1, 2, 3, 4, 5, 6, 7)).getClass());
assertEquals(BasicSetN.class, asSet(Arrays.asList(1, 2, 3, 4, 5, 6, 7, 8)).getClass());
}
@Test
public void test_asSet_iterator_types() {
assertEquals(BasicSet1.class, asSet(Arrays.asList(1).iterator()).getClass());
assertEquals(BasicSetN.class, asSet(Arrays.asList(1, 2).iterator()).getClass());
assertEquals(BasicSetN.class, asSet(Arrays.asList(1, 2, 3).iterator()).getClass());
assertEquals(BasicSetN.class, asSet(Arrays.asList(1, 2, 3, 4).iterator()).getClass());
assertEquals(BasicSetN.class, asSet(Arrays.asList(1, 2, 3, 4, 5).iterator()).getClass());
assertEquals(BasicSetN.class, asSet(Arrays.asList(1, 2, 3, 4, 5, 6).iterator()).getClass());
assertEquals(BasicSetN.class, asSet(Arrays.asList(1, 2, 3, 4, 5, 6, 7).iterator()).getClass());
assertEquals(
BasicSetN.class, asSet(Arrays.asList(1, 2, 3, 4, 5, 6, 7, 8).iterator()).getClass());
}
@Test
public void test_asSet_iterator() {
assertSame(emptySet(), asSet(Arrays.asList().iterator()));
compare_sets(newSet(1), asSet(Arrays.asList(1).iterator()));
compare_sets(newSet(1, 2), asSet(Arrays.asList(1, 2).iterator()));
compare_sets(newSet(1, 2, 3), asSet(Arrays.asList(1, 2, 3).iterator()));
compare_sets(newSet(1, 2, 3, 4), asSet(Arrays.asList(1, 2, 3, 4).iterator()));
compare_sets(newSet(1, 2, 3, 4, 5), asSet(Arrays.asList(1, 2, 3, 4, 5).iterator()));
compare_sets(newSet(1, 2, 3, 4, 5, 6), asSet(Arrays.asList(1, 2, 3, 4, 5, 6).iterator()));
}