public void Did_TransactionDatabase_CreateUniqueItemList_Populates_Correct()
{
var transactions = new TransactionDatabase();
transactions.AddTransaction(new Transaction("A,B,C,D"));
transactions.AddTransaction(new Transaction("A,B,C,A"));
transactions.AddTransaction(new Transaction("A,B"));
transactions.AddTransaction(new Transaction("A,B,C"));
transactions.CreateUniqueItemsList();
Assert.AreEqual(4, transactions.UniqueItems.Items.Count, "UniqueItemsList populates incorrectly");
}
public void Did_TransactionDatabase_Support_Returns_Correct()
{
var transactions = new TransactionDatabase();
transactions.AddTransaction(new Transaction("A,B,C,D"));
transactions.AddTransaction(new Transaction("A,B,C,D,A"));
transactions.AddTransaction(new Transaction("A,B"));
transactions.AddTransaction(new Transaction("A,B,C"));
var support = transactions.GetSupportOfTransaction(new Transaction("A,B,C"));
Assert.AreEqual(0.75, support, "GetSupportOfTransaction is not equals to 0.75");
}
public void Did_TransactionDatabase_Conviction_Returns_Correct()
{
var transactions = new TransactionDatabase();
transactions.AddTransaction(new Transaction("A,B,C,D"));
transactions.AddTransaction(new Transaction("A,B,C,A"));
transactions.AddTransaction(new Transaction("A,B"));
transactions.AddTransaction(new Transaction("A,B,C"));
var conviction = transactions.GetConvictionOfTransactions(new Transaction("A,B"), new Transaction("D"));
Assert.AreEqual(1, conviction, "GetConvictionOfTransactions is not equals to 1");
conviction = transactions.GetConvictionOfTransactions(new Transaction("A,B"), new Transaction("A,B"));
Assert.AreEqual(double.NaN, conviction, "GetConvictionOfTransactions is not equals to NaN");
}
public void Did_TransactionDatabase_Lift_Returns_Correct()
{
var transactions = new TransactionDatabase();
transactions.AddTransaction(new Transaction("A,B,C,D"));
transactions.AddTransaction(new Transaction("A,B,C,A"));
transactions.AddTransaction(new Transaction("A,B"));
transactions.AddTransaction(new Transaction("A,B,C"));
var lift = transactions.GetLiftOfTransactions(new Transaction("A,B"), new Transaction("D"));
Assert.AreEqual(1, lift, "GetLiftOfTransaction is not equals to 0.25");
lift = transactions.GetLiftOfTransactions(new Transaction("A,B"), new Transaction("A,B"));
Assert.AreEqual(1, lift, "GetLiftOfTransaction is not equals to 1");
}
public void Did_TransactionDatabase_Confidence_Returns_Correct()
{
var transactions = new TransactionDatabase();
transactions.AddTransaction(new Transaction("A,B,C,D"));
transactions.AddTransaction(new Transaction("A,B,C,A"));
transactions.AddTransaction(new Transaction("A,B"));
transactions.AddTransaction(new Transaction("A,B,C"));
var support = transactions.GetConfidenceOfTransactions(new Transaction("A,B"), new Transaction("D"));
Assert.AreEqual(0.25, support, "GetSupportOfTransaction is not equals to 0.25");
support = transactions.GetConfidenceOfTransactions(new Transaction("A,B"), new Transaction("A,B"));
Assert.AreEqual(1, support, "GetSupportOfTransaction is not equals to 1");
}
public void Did_ItemTransaction_Load_Transactions_From_Transaction_Database()
{
var transactions = new TransactionDatabase();
transactions.AddTransaction(new Transaction("A,B,C,D"));
transactions.AddTransaction(new Transaction("A,B,C,D,A"));
transactions.AddTransaction(new Transaction("A,B"));
transactions.AddTransaction(new Transaction("A,B,C"));
var itemTransaction = new ItemTransactions();
itemTransaction.GetTransactionsFromDatabase(transactions);
Assert.AreEqual(4, itemTransaction.TransactionList.Count, "GetMaxTransactionLength is not equals to 4");
}
public void Did_ItemsTransactionList_Load_Transactions_From_Transaction_Database()
{
var transactions = new TransactionDatabase();
transactions.AddTransaction(new Transaction("A,B,C,D"));
transactions.AddTransaction(new Transaction("A,B,C,D,A"));
transactions.AddTransaction(new Transaction("A,B"));
transactions.AddTransaction(new Transaction("A,B,C"));
var item1 = new Item("A");
var item2 = new Item("B");
var itemList = new ItemList();
itemList.Items.Add(item1);
itemList.Items.Add(item2);
var itemsTransactionList = new ItemsTransactionList(itemList);
itemsTransactionList.AddTransactionsInTransactionDatabaseToList(transactions);
Assert.AreEqual(4, itemsTransactionList.Transactions.Count, "itemsTransactionList.Transactions.Count is not equals to 1");
}
public void Eclat_Calcuates_Transactions_Support_Right()
{
var transactions = new TransactionDatabase();
transactions.AddTransaction(new Transaction("A,B,C,D"));
transactions.AddTransaction(new Transaction("A,B,C,A"));
transactions.AddTransaction(new Transaction("A,B"));
transactions.AddTransaction(new Transaction("A,B,C"));
transactions.AddTransaction(new Transaction("D"));
transactions.AddTransaction(new Transaction("E"));
var eclat = new Eclat(transactions);
eclat.Run();
Assert.IsTrue(eclat.IsTransactionSupported(new Transaction("A,B")), "Apriori algorithm did not works right as new Transaction(\"A,B\") is not included in Supported Transactions List");
Assert.IsFalse(eclat.IsTransactionSupported(new Transaction("D,E")), "Apriori algorithm did not works right as new Transaction(\"D,E\") is included in Supported Transactions List");
}
public void Eclat_Creation_Default_Constructor_Name()
{
var transactions = new TransactionDatabase();
transactions.AddTransaction(new Transaction("A,B,C,D"));
transactions.AddTransaction(new Transaction("A,B,C,A"));
transactions.AddTransaction(new Transaction("A,B"));
transactions.AddTransaction(new Transaction("A,B,C"));
transactions.AddTransaction(new Transaction("D"));
transactions.AddTransaction(new Transaction("E"));
var eclat = new Eclat(transactions, 0.2);
eclat.Run();
Assert.AreEqual(8, eclat.TransactionCountWithSupport(), "Apriori Algorithm results wrong amount of transaction.");
eclat = new Eclat(transactions);
eclat.Run();
Assert.AreEqual(16, eclat.TransactionCountWithSupport(), "Apriori Algorithm results wrong amount of transaction.");
Assert.IsTrue(eclat.IsTransactionSupported(new Transaction("A,B")), "Apriori algorithm did not works right as new Transaction(\"A,B\") is not included in Supported Transactions List");
}
