public void BasicLifecycle()
{
var dict = new MultiVersionDictionary <V>();
V v;
V v1 = new V(1);
Assert.IsFalse(dict.TryGetValue("A", 0, out _));
Assert.IsFalse(dict.TryRemove("A", 0));
Assert.IsTrue(dict.AddOrUpdate("A", 1, v1));
Assert.IsFalse(dict.TryGetValue("A", 0, out _));
Assert.IsTrue(dict.TryGetValue("A", 1, out v));
Assert.AreEqual(v1, v);
Assert.IsTrue(dict.TryGetValue("A", 2, out v));
Assert.AreEqual(v1, v);
Assert.IsFalse(dict.TryRemove("A", 0));
Assert.IsTrue(dict.TryRemove("A", 2));
Assert.IsFalse(dict.TryGetValue("A", 0, out _));
Assert.IsTrue(dict.TryGetValue("A", 1, out v));
Assert.AreEqual(v1, v);
Assert.IsFalse(dict.TryGetValue("A", 2, out v));
}
