public void TestAddingTheSameElement()
{
var table = new HashTable(2);
table.PutPair("Pushkin", "The captain's daughter");
table.PutPair("Pushkin", "Dubrovsky");
Assert.AreEqual("Dubrovsky", table.GetValueByKey("Pushkin"));
}
static object SimilarKeysTest()
{
var table = new HashTable(1);
table.PutPair("se4f", 575287);
table.PutPair("se4f", 123);
return((int)table.GetValueByKey("se4f") == 123);
}
static object ThreeElementsTest()
{
var table = new HashTable(3);
table.PutPair("3434", 13424);
table.PutPair("ghhh", 51977);
table.PutPair("12", 59498);
return((int)table.GetValueByKey("ghhh") == 51977);
}
public void TestThreeElements()
{
var table = new HashTable(3);
table.PutPair("Pushkin", "The captain's daughter");
table.PutPair("Lermontov", "A hero of our time");
table.PutPair("Tolstoy", "War and peace");
Assert.AreEqual("The captain's daughter", table.GetValueByKey("Pushkin"));
Assert.AreEqual("A hero of our time", table.GetValueByKey("Lermontov"));
Assert.AreEqual("War and peace", table.GetValueByKey("Tolstoy"));
}
static object HugeAndOneFindTest()
{
var tbl = new HashTable(10000);
for (var i = 1; i <= tbl.Length; i++)
{
tbl.PutPair(i, i);
}
return((int)tbl.GetValueByKey(100) == 100);
}
public void TestSearchingOneElement()
{
var rnd = new Random();
var table = new HashTable(10000);
var toFindKey = RandomString(10);
var toFindValue = RandomString(10);
var put = rnd.Next(0, 1000);
for (int i = 0; i < 10000; i++)
{
if (i == put)
{
table.PutPair(toFindKey, toFindValue);
}
else
{
table.PutPair(RandomString(5), RandomString(5));
}
}
Assert.AreEqual(toFindValue, table.GetValueByKey(toFindKey));
}
public void TestSearching()
{
var table = new HashTable(10000);
for (int i = 0; i < 10000; i++)
{
table.PutPair(RandomString(10), RandomString(10));
}
for (int i = 0; i < 1000; i++)
{
Assert.AreEqual(null, table.GetValueByKey(i));
}
}
static object HugeAndFadedFindTest()
{
var tbl = new HashTable(1500000);
for (var i = 1; i <= tbl.Length; i++)
{
tbl.PutPair(i, i * 2);
}
for (var i = tbl.Length + 1; i <= (tbl.Length * 1.1); i++)
{
if ((object)tbl.GetValueByKey(i) != null)
{
return(false);
}
}
return(true);
}
