public void CloneContents()
{
var deque1 = new Deque <MyInt>();
deque1.Add(new MyInt(143));
deque1.Add(new MyInt(2));
deque1.AddToFront(new MyInt(9));
deque1.Add(null);
deque1.AddToFront(new MyInt(2));
deque1.Add(new MyInt(111));
var deque2 = deque1.CloneContents();
CompareClones(deque1, deque2);
var deque3 = new Deque <int>(new int[] { 144, 5, 23 });
deque3.InsertRange(1, new int[] { 7, 5, 11, 109 });
var deque4 = deque3.CloneContents();
CompareClones(deque3, deque4);
var deque5 = new Deque <UtilFixture.CloneableStruct>();
deque5.Add(new UtilFixture.CloneableStruct(143));
deque5.AddToFront(new UtilFixture.CloneableStruct(5));
deque5.Add(new UtilFixture.CloneableStruct(23));
deque5.AddToFront(new UtilFixture.CloneableStruct(1));
deque5.AddToFront(new UtilFixture.CloneableStruct(8));
var deque6 = deque5.CloneContents();
Assert.AreEqual(deque5.Count, deque6.Count);
// Check that the deques are equal, but not identical (e.g., have been cloned via ICloneable).
IEnumerator <UtilFixture.CloneableStruct> e1 = deque5.GetEnumerator();
IEnumerator <UtilFixture.CloneableStruct> e2 = deque6.GetEnumerator();
// Check that the deques are equal, but not reference equals (e.g., have been cloned).
while (e1.MoveNext())
{
e2.MoveNext();
Assert.IsTrue(e1.Current.Equals(e2.Current));
Assert.IsFalse(e1.Current.Identical(e2.Current));
}
}
private void CompareClones <T>(Deque <T> s1, Deque <T> s2)
{
IEnumerator <T> e1 = s1.GetEnumerator();
IEnumerator <T> e2 = s2.GetEnumerator();
Assert.IsTrue(s1.Count == s2.Count);
// Check that the deques are equal, but not reference equals (e.g., have been cloned).
while (e1.MoveNext())
{
e2.MoveNext();
if (e1.Current == null)
{
Assert.IsNull(e2.Current);
}
else
{
Assert.IsTrue(e1.Current.Equals(e2.Current));
Assert.IsFalse(object.ReferenceEquals(e1.Current, e2.Current));
}
}
}
