public void ShouldModelOneTransaction()
{
var combinedModel = new CombinedTransactionModel <string>(new[] { "corn", "cactus" });
combinedModel.SetTransactionValue("cactus", "corn", -1, 10);
Assert.AreEqual((-1, 10), combinedModel.GetTransactionAmounts("cactus", "corn"));
Assert.AreEqual((10, -1), combinedModel.GetTransactionAmounts("corn", "cactus"));
}
public void ShouldModelOneTransactionAndAdd()
{
var combinedModel = new CombinedTransactionModel <string>(new[] { "corn", "cactus" });
combinedModel.SetTransactionValue("cactus", "corn", -2, 4);
Assert.AreEqual((-2, 4), combinedModel.GetTransactionAmounts("cactus", "corn"));
Assert.AreEqual((4, -2), combinedModel.GetTransactionAmounts("corn", "cactus"));
combinedModel.AddTransaction("corn", "cactus", -1, 1);
Assert.AreEqual((-1, 3), combinedModel.GetTransactionAmounts("cactus", "corn"));
Assert.AreEqual((3, -1), combinedModel.GetTransactionAmounts("corn", "cactus"));
}
public void ShouldAddManyTransactions()
{
var combinedModel = new CombinedTransactionModel <string>(new[] { "corn", "cactus", "chili", "chips" });
combinedModel.AddTransaction("cactus", "corn", -1, 1);
combinedModel.AddTransaction("chili", "corn", -2, 1);
combinedModel.AddTransaction("chips", "corn", -1, 2);
Assert.AreEqual((-1, 1), combinedModel.GetTransactionAmounts("cactus", "corn"));
Assert.AreEqual((-2, 1), combinedModel.GetTransactionAmounts("chili", "corn"));
Assert.AreEqual((-1, 2), combinedModel.GetTransactionAmounts("chips", "corn"));
}
public void ShouldModelManyTransactions()
{
var combinedModel = new CombinedTransactionModel <string>(new[] { "corn", "cactus", "chili", "chips" });
combinedModel.SetTransactionValue("cactus", "corn", -1, 9);
combinedModel.SetTransactionValue("cactus", "chili", -1, 8);
combinedModel.SetTransactionValue("chili", "corn", -1, 7);
combinedModel.SetTransactionValue("chips", "chili", -1, 5);
combinedModel.SetTransactionValue("chips", "corn", -1, 4);
Assert.AreEqual((-1, 9), combinedModel.GetTransactionAmounts("cactus", "corn"));
Assert.AreEqual((-1, 8), combinedModel.GetTransactionAmounts("cactus", "chili"));
Assert.AreEqual((-1, 7), combinedModel.GetTransactionAmounts("chili", "corn"));
Assert.AreEqual((-1, 5), combinedModel.GetTransactionAmounts("chips", "chili"));
Assert.AreEqual((-1, 4), combinedModel.GetTransactionAmounts("chips", "corn"));
}
public void ShouldModelManyTransactionsAndApplyToInventoryModel()
{
var validTransactionItems = new[] { "corn", "cactus", "chili", "chips" };
var combinedModel = new CombinedTransactionModel <string>(validTransactionItems);
combinedModel.SetTransactionValue("cactus", "corn", -1, 2);
combinedModel.SetTransactionValue("cactus", "chili", -1, 2);
combinedModel.SetTransactionValue("chili", "corn", -1, 1);
combinedModel.SetTransactionValue("chips", "corn", -1, 3);
Assert.AreEqual((-1, 2), combinedModel.GetTransactionAmounts("cactus", "corn"));
Assert.AreEqual((-1, 2), combinedModel.GetTransactionAmounts("cactus", "chili"));
Assert.AreEqual((-1, 1), combinedModel.GetTransactionAmounts("chili", "corn"));
Assert.AreEqual((-1, 3), combinedModel.GetTransactionAmounts("chips", "corn"));
var inventory = new Dictionary <string, float>()
{
{ "corn", 0f },
{ "cactus", 2f },
{ "chili", 10f },
{ "chips", 1f },
};
var addedInventory = inventory + combinedModel;
var expectedInventory = new Dictionary <string, float>()
{
{ "corn", 6f },
{ "cactus", 0f },
{ "chili", 11f },
{ "chips", 0f },
};
Assert.IsTrue(expectedInventory.SequenceEqual(addedInventory));
// Subtracting the transaction should leave us with the original inventory
var subtractedInventory = addedInventory - combinedModel;
Assert.IsTrue(inventory.SequenceEqual(subtractedInventory));
}