public void LRUChainItemTests_Constructor()
{
string str = "hello";
var chainItem = new LRUChainItem <string>(value: str);
Assert.AreEqual(str, chainItem.ItemValue);
}
public void LRUChainTests_GetItemToEvict_on_list_with_one_item()
{
var item_1 = new LRUChainItem <string>("foo");
_chain.AddFirst(item_1);
Assert.AreEqual(item_1, _chain.GetItemToEvict());
}
public void LRUChainTests_AddFirst_only_one_item()
{
var item_1 = new LRUChainItem <string>("foo");
_chain.AddFirst(item_1);
Assert.AreEqual(item_1, _chain.TestEnabler_GetHead());
Assert.AreEqual(item_1, _chain.TestEnabler_GetTail());
}
public void LRUChainTests_AddFirst_two_items()
{
var item_1 = new LRUChainItem <string>("foo");
var item_2 = new LRUChainItem <string>("bar");
_chain.AddFirst(item_1);
_chain.AddFirst(item_2);
Assert.AreEqual(item_2, _chain.TestEnabler_GetHead());
Assert.AreEqual(item_1, _chain.TestEnabler_GetTail());
}
public void LRUChainTests_Remove_when_only_one_item()
{
var item_1 = new LRUChainItem <string>("foo");
_chain.AddFirst(item_1);
_chain.Remove(item_1);
Assert.IsNull(_chain.TestEnabler_GetHead());
Assert.IsNull(_chain.TestEnabler_GetTail());
}
public void LRUChainTests_GetItemToEvict_on_list_with_three_items()
{
var item_1 = new LRUChainItem <string>("foo");
var item_2 = new LRUChainItem <string>("bar");
var item_3 = new LRUChainItem <string>("who");
_chain.AddFirst(item_1);
_chain.AddFirst(item_2);
_chain.AddFirst(item_3);
Assert.AreEqual(item_1, _chain.GetItemToEvict());
}
public void LRUChainTests_Remove_tail_when_two_items()
{
var item_1 = new LRUChainItem <string>("foo");
var item_2 = new LRUChainItem <string>("bar");
_chain.AddFirst(item_1);
_chain.AddFirst(item_2);
// item_2 is the head
_chain.Remove(item_1);
Assert.AreEqual(item_2, _chain.TestEnabler_GetHead());
Assert.AreEqual(item_2, _chain.TestEnabler_GetTail());
}
public void LRUChainTests_Promote_with_three_items_promote_middle_item()
{
var item_1 = new LRUChainItem <string>("foo");
var item_2 = new LRUChainItem <string>("bar");
var item_3 = new LRUChainItem <string>("who");
_chain.AddFirst(item_1);
_chain.AddFirst(item_2);
_chain.AddFirst(item_3);
_chain.Promote(item_2);
Assert.AreEqual(item_2, _chain.TestEnabler_GetHead());
Assert.AreEqual(item_1, _chain.TestEnabler_GetTail());
}
public void LRUChainTests_Remove_tail_when_three_items()
{
var item_1 = new LRUChainItem <string>("foo");
var item_2 = new LRUChainItem <string>("bar");
var item_3 = new LRUChainItem <string>("who");
_chain.AddFirst(item_1);
_chain.AddFirst(item_2);
_chain.AddFirst(item_3);
// order is 3, 2, 1
_chain.Remove(item_1);
Assert.AreEqual(item_3, _chain.TestEnabler_GetHead());
Assert.AreEqual(item_2, _chain.TestEnabler_GetTail());
}