public void AddAndExistsTest(IHashTable hashTable) { hashTable.Add("Existing string"); Assert.IsTrue(hashTable.Exists("Existing string")); Assert.IsFalse(hashTable.Exists("Not existing string")); }
public void DeleteTest(IHashTable hashTable) { hashTable.Add("TestString1"); hashTable.Add("TestString2"); hashTable.Add("TestString3"); Assert.IsTrue(hashTable.Delete("TestString1")); Assert.IsFalse(hashTable.Delete("TestString1")); Assert.IsTrue(hashTable.Delete("TestString3")); Assert.IsFalse(hashTable.Exists("TestString1")); Assert.IsFalse(hashTable.Exists("TestString3")); Assert.IsTrue(hashTable.Exists("TestString2")); }
/// <summary> /// Performs an action depending on the entered command. /// </summary> /// <param name="hashTable">Hash table to work with.</param> /// <param name="command">Command entered by user.</param> public void CommandExecution(IHashTable hashTable, int command) { switch (command) { case 0: break; case 1: { Console.WriteLine("Enter the data of element you want to add"); var data = int.Parse(Console.ReadLine()); if (!hashTable.Add(data)) { Console.WriteLine("The element with the given data already exists"); } break; } case 2: { Console.WriteLine("Enter the data of element you want to delete"); var data = int.Parse(Console.ReadLine()); if (!hashTable.Delete(data)) { Console.WriteLine("The element with the given data does not exists"); } break; } case 3: { Console.WriteLine("Enter the data of hash table element"); var data = int.Parse(Console.ReadLine()); if (hashTable.Exists(data)) { Console.WriteLine("The element with the given data exists"); } else { Console.WriteLine("The element with the given data does not exists"); } break; } case 4: Console.WriteLine("The hash table:"); hashTable.Print(); break; default: Console.WriteLine("The command you entered is incorrect"); break; } }
private static void CommandExecution(IHashTable hashTable) { int number = int.Parse(Console.ReadLine()); while (number != 0) { switch (number) { case 1: { int value = ValueEntryRequest(); hashTable.Add(value); } break; case 2: { int value = ValueEntryRequest(); hashTable.Remove(value); } break; case 3: { int value = ValueEntryRequest(); if (hashTable.Exists(value)) { Console.WriteLine("Value is in the hash table"); } else { Console.WriteLine("Value is not in the hash table"); } } break; case 4: hashTable.Print(); break; case 5: hashTable.Clear(); break; default: Console.WriteLine("Enter correct number"); break; } Console.Write("Input number: "); number = int.Parse(Console.ReadLine()); } }
public void ExistsInEmptyHashTableTest(IHashTable hashTable) => Assert.IsFalse(hashTable.Exists("TestString"));