public void TestEqualityRules()
{
ImmutableArrayList first = new ImmutableArrayList(AsArray("1", "2", "3"));
ImmutableArrayList second = new ImmutableArrayList(AsArray("1", "2", "3"));
// x.Equals(null) == false
Assert.IsFalse(first.Equals(null));
// x.Equals(x) == true
Assert.IsTrue(first.Equals(first));
// x.Equals(y) == y.Equals(x)
Assert.IsTrue(first.Equals(second));
Assert.AreEqual(first.Equals(second), second.Equals(first));
}
public void TestEqualityBehaviorWithList()
{
ImmutableArrayList iaList = new ImmutableArrayList(AsArray("1", "2", "3"));
ArrayList arrList1 = new ArrayList(AsArray("1", "2", "3"));
ArrayList arrList2 = new ArrayList(AsArray("1", "3", "2"));
ArrayList arrList3 = new ArrayList(AsArray("1", "2", "3", "4"));
ArrayList arrList4 = new ArrayList(AsArray("1", "2"));
// same size, same elements, same order
Assert.IsTrue(iaList.Equals(arrList1));
// same size, same elements, not ordered the same
Assert.IsFalse(iaList.Equals(arrList2));
// same size, different elements
Assert.IsFalse(iaList.Equals(arrList3));
// different size
Assert.IsFalse(iaList.Equals(arrList4));
}
public void TestEqualityBehaviorWithCollection()
{
ImmutableArrayList iaList = new ImmutableArrayList(AsArray("1", "2", "3"));
Queue queue1 = new Queue(AsArray("1", "2", "3"));
Queue queue2 = new Queue(AsArray("2", "3", "1"));
Queue queue3 = new Queue(AsArray("1", "5", "3"));
Queue queue4 = new Queue(AsArray("1", "2"));
// same size, same elements
Assert.IsTrue(iaList.Equals(queue1));
// same size, same elements, not ordered
Assert.IsTrue(iaList.Equals(queue2));
// same size, different elements
Assert.IsFalse(iaList.Equals(queue3));
// different size
Assert.IsFalse(iaList.Equals(queue4));
}