@Test
public void equalsAndHashCode() {
ImmutableBag<String> immutable = this.newBag();
MutableBag<String> mutable = HashBag.newBag(immutable);
Verify.assertEqualsAndHashCode(immutable, mutable);
Assert.assertNotEquals(immutable, FastList.newList(mutable));
Assert.assertEquals(this.newBag().toMapOfItemToCount().hashCode(), this.newBag().hashCode());
Assert.assertNotEquals(immutable, mutable.with("5").without("1"));
}
