public void TestVertexArray()
{
VertexArray <Vertex> va = new VertexArray <Vertex>(2);
Assert.AreEqual(va.Count, 2);
Assert.IsNull(va[0]);
Assert.IsNull(va[1]);
Vertex v0 = new Vertex();
Vertex v1 = new Vertex();
va.Add(0, v0);
va.Add(1, v1);
foreach (KeyValuePair <int, Vertex> pair in va)
{
Assert.AreNotEqual(pair, null);
Assert.AreNotEqual(pair.Value, null);
}
Assert.AreEqual(va.Count, 2);
Assert.IsTrue(va.ContainsKey(0));
Assert.IsTrue(va.ContainsKey(1));
Assert.IsTrue(va.Contains(new KeyValuePair <int, Vertex>(0, v0)));
Assert.IsTrue(va.Contains(new KeyValuePair <int, Vertex>(1, v1)));
Vertex re = null;
Assert.IsTrue(va.TryGetValue(0, out re));
Assert.AreEqual(re, v0);
re = null;
Assert.IsFalse(va.TryGetValue(2, out re));
Assert.IsNull(re);
Assert.IsTrue(va.Remove(new KeyValuePair <int, Vertex>(0, v0)));
Assert.IsTrue(va.ContainsKey(0));
Assert.IsTrue(va.ContainsKey(1));
Assert.IsNull(va[0]);
Assert.IsNotNull(va[1]);
Assert.AreEqual(va[1], v1);
Assert.IsTrue(va.Remove(1));
Assert.IsNull(va[1]);
Assert.AreEqual(va.Count, 2);
}