@Test
public void retainAllFromEntrySet() {
MutableMapIterable<String, Integer> map =
this.newMapWithKeysValues("One", 1, "Two", 2, "Three", 3);
Assert.assertFalse(
map.entrySet()
.retainAll(
FastList.newListWith(
ImmutableEntry.of("One", 1),
ImmutableEntry.of("Two", 2),
ImmutableEntry.of("Three", 3),
ImmutableEntry.of("Four", 4))));
Assert.assertTrue(
map.entrySet()
.retainAll(
FastList.newListWith(
ImmutableEntry.of("One", 1),
ImmutableEntry.of("Three", 3),
ImmutableEntry.of("Four", 4))));
Assert.assertEquals(UnifiedMap.newWithKeysValues("One", 1, "Three", 3), map);
MutableMapIterable<Integer, Integer> integers = this.newMapWithKeysValues(1, 1, 2, 2, 3, 3);
Integer copy = new Integer(1);
Assert.assertTrue(integers.entrySet().retainAll(mList(ImmutableEntry.of(copy, copy))));
Assert.assertEquals(iMap(copy, copy), integers);
Assert.assertNotSame(copy, Iterate.getOnly(integers.entrySet()).getKey());
Assert.assertNotSame(copy, Iterate.getOnly(integers.entrySet()).getValue());
}
