public virtual Object Clone()
{
try
{
HashSet <E> clone = (HashSet <E>)base.MemberwiseClone();
clone.backingMap = (HashMap <E, HashSet <E> >)backingMap.Clone();
return(clone);
}
catch (NotSupportedException)
{
return(null);
}
}
public void TestClone()
{
HashMap <Object, Object> hm2 = (HashMap <Object, Object>)hm.Clone();
Assert.IsTrue(hm2 != hm, "Clone answered equivalent HashMap");
for (int counter = 0; counter < hmSize; counter++)
{
Assert.IsTrue(hm.Get(objArray2[counter]) == hm2.Get(objArray2[counter]), "Clone answered unequal HashMap");
}
HashMap <Object, Object> map = new HashMap <Object, Object>();
map.Put("key", "value");
// get the KeySet() and Values() on the original Map
Set <Object> keys = map.KeySet();
Collection <Object> values = map.Values();
Assert.AreEqual("value", values.Iterator().Next(), "Values() does not work");
Assert.AreEqual("key", keys.Iterator().Next(), "KeySet() does not work");
AbstractMap <Object, Object> map2 = (AbstractMap <Object, Object>)map.Clone();
map2.Put("key", "value2");
Collection <Object> values2 = map2.Values();
Assert.IsTrue(values2 != values, "Values() is identical");
// Values() and KeySet() on the Cloned() map should be different
Assert.AreEqual("value2", values2.Iterator().Next(), "Values() was not Cloned");
map2.Clear();
map2.Put("key2", "value3");
Set <Object> key2 = map2.KeySet();
Assert.IsTrue(key2 != keys, "KeySet() is identical");
Assert.AreEqual("key2", key2.Iterator().Next(), "KeySet() was not Cloned");
HashMap <Object, Object> hashmap = new HashMap <Object, Object>();
MockClonable mock = new MockClonable(1);
hashmap.Put(1, mock);
Assert.AreEqual(1, ((MockClonable)hashmap.Get(1)).i);
HashMap <Object, Object> hm3 = (HashMap <Object, Object>)hashmap.Clone();
Assert.AreEqual(1, ((MockClonable)hm3.Get(1)).i);
mock.i = 0;
Assert.AreEqual(0, ((MockClonable)hashmap.Get(1)).i);
Assert.AreEqual(0, ((MockClonable)hm3.Get(1)).i);
}
