public void BuildTree_WithMultipleItems()
{
// Arrange
var items = new List <Item>();
var item1 = new Item();
item1.Criteria.Add("controller", new DecisionCriterionValue(value: "Store", isCatchAll: false));
item1.Criteria.Add("action", new DecisionCriterionValue(value: "Buy", isCatchAll: false));
items.Add(item1);
var item2 = new Item();
item2.Criteria.Add("controller", new DecisionCriterionValue(value: "Store", isCatchAll: false));
item2.Criteria.Add("action", new DecisionCriterionValue(value: "Checkout", isCatchAll: false));
items.Add(item2);
// Act
var tree = DecisionTreeBuilder <Item> .GenerateTree(items, new ItemClassifier());
// Assert
Assert.Empty(tree.Matches);
var action = Assert.Single(tree.Criteria);
Assert.Equal("action", action.Key);
Assert.Null(action.Fallback);
var buy = action.Branches["Buy"];
Assert.Empty(buy.Matches);
var controller = Assert.Single(buy.Criteria);
Assert.Equal("controller", controller.Key);
Assert.Null(controller.Fallback);
var store = Assert.Single(controller.Branches);
Assert.Equal("Store", store.Key);
Assert.Empty(store.Value.Criteria);
Assert.Same(item1, Assert.Single(store.Value.Matches));
var checkout = action.Branches["Checkout"];
Assert.Empty(checkout.Matches);
controller = Assert.Single(checkout.Criteria);
Assert.Equal("controller", controller.Key);
Assert.Null(controller.Fallback);
store = Assert.Single(controller.Branches);
Assert.Equal("Store", store.Key);
Assert.Empty(store.Value.Criteria);
Assert.Same(item2, Assert.Single(store.Value.Matches));
}
public void BuildTree_Empty()
{
// Arrange
var items = new List <Item>();
// Act
var tree = DecisionTreeBuilder <Item> .GenerateTree(items, new ItemClassifier());
// Assert
Assert.Empty(tree.Criteria);
Assert.Empty(tree.Matches);
}
public void BuildTree_WithMultipleCriteria()
{
// Arrange
var items = new List <Item>();
var item = new Item();
item.Criteria.Add("area", new DecisionCriterionValue(value: "Admin", isCatchAll: false));
item.Criteria.Add("controller", new DecisionCriterionValue(value: "Users", isCatchAll: false));
item.Criteria.Add("action", new DecisionCriterionValue(value: "AddUser", isCatchAll: false));
items.Add(item);
// Act
var tree = DecisionTreeBuilder <Item> .GenerateTree(items, new ItemClassifier());
// Assert
Assert.Empty(tree.Matches);
var area = Assert.Single(tree.Criteria);
Assert.Equal("area", area.Key);
Assert.Null(area.Fallback);
var admin = Assert.Single(area.Branches);
Assert.Equal("Admin", admin.Key);
Assert.Empty(admin.Value.Matches);
var controller = Assert.Single(admin.Value.Criteria);
Assert.Equal("controller", controller.Key);
Assert.Null(controller.Fallback);
var users = Assert.Single(controller.Branches);
Assert.Equal("Users", users.Key);
Assert.Empty(users.Value.Matches);
var action = Assert.Single(users.Value.Criteria);
Assert.Equal("action", action.Key);
Assert.Null(action.Fallback);
var addUser = Assert.Single(action.Branches);
Assert.Equal("AddUser", addUser.Key);
Assert.Empty(addUser.Value.Criteria);
Assert.Same(item, Assert.Single(addUser.Value.Matches));
}
public void BuildTree_TrivialMatch()
{
// Arrange
var items = new List <Item>();
var item = new Item();
items.Add(item);
// Act
var tree = DecisionTreeBuilder <Item> .GenerateTree(items, new ItemClassifier());
// Assert
Assert.Empty(tree.Criteria);
Assert.Same(item, Assert.Single(tree.Matches));
}
public void BuildTree_WithDivergentCriteria()
{
// Arrange
var items = new List <Item>();
var item1 = new Item();
item1.Criteria.Add("controller", new DecisionCriterionValue(value: "Store", isCatchAll: false));
item1.Criteria.Add("action", new DecisionCriterionValue(value: "Buy", isCatchAll: false));
items.Add(item1);
var item2 = new Item();
item2.Criteria.Add("controller", new DecisionCriterionValue(value: "Store", isCatchAll: false));
item2.Criteria.Add("action", new DecisionCriterionValue(value: "Checkout", isCatchAll: false));
items.Add(item2);
var item3 = new Item();
item3.Criteria.Add("stub", new DecisionCriterionValue(value: "Bleh", isCatchAll: false));
items.Add(item3);
// Act
var tree = DecisionTreeBuilder <Item> .GenerateTree(items, new ItemClassifier());
// Assert
Assert.Empty(tree.Matches);
var action = tree.Criteria[0];
Assert.Equal("action", action.Key);
var stub = tree.Criteria[1];
Assert.Equal("stub", stub.Key);
}
public void BuildTree_WithCatchAll()
{
// Arrange
var items = new List <Item>();
var item1 = new Item();
item1.Criteria.Add("country", new DecisionCriterionValue(value: "CA", isCatchAll: false));
item1.Criteria.Add("controller", new DecisionCriterionValue(value: "Store", isCatchAll: false));
item1.Criteria.Add("action", new DecisionCriterionValue(value: "Checkout", isCatchAll: false));
items.Add(item1);
var item2 = new Item();
item2.Criteria.Add("country", new DecisionCriterionValue(value: "US", isCatchAll: false));
item2.Criteria.Add("controller", new DecisionCriterionValue(value: "Store", isCatchAll: false));
item2.Criteria.Add("action", new DecisionCriterionValue(value: "Checkout", isCatchAll: false));
items.Add(item2);
var item3 = new Item();
item3.Criteria.Add("country", new DecisionCriterionValue(value: null, isCatchAll: true));
item3.Criteria.Add("controller", new DecisionCriterionValue(value: "Store", isCatchAll: false));
item3.Criteria.Add("action", new DecisionCriterionValue(value: "Checkout", isCatchAll: false));
items.Add(item3);
// Act
var tree = DecisionTreeBuilder <Item> .GenerateTree(items, new ItemClassifier());
// Assert
Assert.Empty(tree.Matches);
var country = Assert.Single(tree.Criteria);
Assert.Equal("country", country.Key);
var fallback = country.Fallback;
Assert.NotNull(fallback);
var controller = Assert.Single(fallback.Criteria);
Assert.Equal("controller", controller.Key);
Assert.Null(controller.Fallback);
var store = Assert.Single(controller.Branches);
Assert.Equal("Store", store.Key);
Assert.Empty(store.Value.Matches);
var action = Assert.Single(store.Value.Criteria);
Assert.Equal("action", action.Key);
Assert.Null(action.Fallback);
var checkout = Assert.Single(action.Branches);
Assert.Equal("Checkout", checkout.Key);
Assert.Empty(checkout.Value.Criteria);
Assert.Same(item3, Assert.Single(checkout.Value.Matches));
}