public void IndexedVector_Mutations()
{
IndexedVector <string, VectorMember <string> > vector = new IndexedVector <string, VectorMember <string> >();
var item = new VectorMember <string> {
Key = "foobar"
};
Assert.IsFalse(vector.ContainsKey(item.Key));
Assert.IsFalse(vector.TryGetValue(item.Key, out _));
Assert.AreEqual(0, vector.Count);
Assert.AreEqual(0, vector.Count());
Assert.IsTrue(vector.Add(item));
Assert.IsFalse(vector.Add(item));
Assert.IsTrue(vector.ContainsKey(item.Key));
Assert.IsTrue(vector.TryGetValue(item.Key, out _));
Assert.AreEqual(1, vector.Count);
Assert.AreEqual(1, vector.Count());
Assert.IsTrue(vector.Remove(item.Key));
Assert.IsFalse(vector.Remove(item.Key));
Assert.AreEqual(0, vector.Count);
Assert.AreEqual(0, vector.Count());
Assert.IsTrue(vector.Add(item));
Assert.AreEqual(1, vector.Count);
Assert.AreEqual(1, vector.Count());
vector.Clear();
Assert.AreEqual(0, vector.Count);
Assert.AreEqual(0, vector.Count());
Assert.IsFalse(vector.ContainsKey(item.Key));
Assert.IsFalse(vector.TryGetValue(item.Key, out _));
}
public static IIndexedVector <TKey, TValue>?Clone <TKey, TValue>(IIndexedVector <TKey, TValue>?source, Func <TValue, TValue> cloneItem)
where TKey : notnull
where TValue : class
{
if (source is null)
{
return(null);
}
IndexedVector <TKey, TValue> vector = new IndexedVector <TKey, TValue>(source.Count);
foreach (var pair in source)
{
var item = cloneItem(pair.Value);
vector.Add(item);
}
return(vector);
}