public void Delete(int[] items, int capacity)
{
int item;
bool success;
var hashtable = new CrackingTheCodingInterview.DataStructures.Hashtable.MyHashtable <int>(capacity);
int n = items.Length;
for (int i = 0; i < n; i++)
{
hashtable.Add($"item {items[i]}", items[i]);
}
item = hashtable.Get("item 10");
Assert.AreEqual(10, item);
success = hashtable.Delete("item 10");
Assert.AreEqual(--n, hashtable.Count);
Assert.AreEqual(0, hashtable.Get("item 10"));
Assert.IsTrue(success);
item = hashtable.Get("item 7");
Assert.AreEqual(7, item);
success = hashtable.Delete("item 7");
Assert.AreEqual(--n, hashtable.Count);
Assert.AreEqual(0, hashtable.Get("item 7"));
Assert.IsTrue(success);
item = hashtable.Get("item 0");
Assert.AreEqual(0, item);
success = hashtable.Delete("item 0");
Assert.AreEqual(--n, hashtable.Count);
Assert.AreEqual(0, hashtable.Get("item 0"));
Assert.IsTrue(success);
}
public void Add(int[] items, int capacity)
{
var hashtable = new CrackingTheCodingInterview.DataStructures.Hashtable.MyHashtable <int>(capacity);
for (int i = 0; i < items.Length; i++)
{
hashtable.Add($"item {items[i]}", i);
}
Assert.AreEqual(items.Length, hashtable.Count);
}
public void Update_WithIndexer(int[] items, int capacity, string key, int expected)
{
var hashtable = new CrackingTheCodingInterview.DataStructures.Hashtable.MyHashtable <int>(capacity);
for (int i = 0; i < items.Length; i++)
{
hashtable.Add($"item {items[i]}", items[i]);
}
hashtable[key] = expected;
var actual = hashtable[key];
Assert.AreEqual(expected, actual);
}
public void Update_NotFound(int[] items, int capacity)
{
int expected = 10;
string key = Guid.NewGuid().ToString();
var hashtable = new CrackingTheCodingInterview.DataStructures.Hashtable.MyHashtable <int>(capacity);
for (int i = 0; i < items.Length; i++)
{
hashtable.Add($"item {items[i]}", items[i]);
}
hashtable[key] = expected;
var actual = hashtable[key];
Assert.AreEqual(0, actual);
}
public void Get_Indexer(int[] items, int capacity)
{
var hashtable = new CrackingTheCodingInterview.DataStructures.Hashtable.MyHashtable <int>(capacity);
for (int i = 0; i < items.Length; i++)
{
hashtable.Add($"item {items[i]}", items[i]);
}
int actual = hashtable["item 10"];
Assert.AreEqual(10, actual);
actual = hashtable["item 7"];
Assert.AreEqual(7, actual);
actual = hashtable["item 2"];
Assert.AreEqual(2, actual);
actual = hashtable["item not found"];
Assert.AreEqual(0, actual);
}
