
using Xunit;
namespace ConsoleApp {
    public class ProgramTests {
        [Fact(DisplayName = "ManageGroceryList returns correct list with adds and removes")] 
        public void ManageGroceryList_AddsAndRemovesCorrectly() {
            var initial = new List<string> { "milk", "bread", "apples" };
            var toAdd = new List<string> { "eggs", "carrots" };
            var toRemove = new List<string> { "bread" };
            var expected = new List<string> { "apples", "carrots", "eggs", "milk" };
            var actual = GroceryListOrganizer.ManageGroceryList(initial, toAdd, toRemove);
            Assert.Equal(expected, actual);
        }
        [Fact(DisplayName = "ManageGroceryList removes all items in remove list")] 
        public void ManageGroceryList_RemovesAllRemoveList() {
            var initial = new List<string> { "milk", "bread", "apples" };
            var toAdd = new List<string> { "eggs" };
            var toRemove = new List<string> { "bread", "apples", "milk" };
            var expected = new List<string> { "eggs" };
            var actual = GroceryListOrganizer.ManageGroceryList(initial, toAdd, toRemove);
            Assert.Equal(expected, actual);
        }
        [Fact(DisplayName = "ManageGroceryList returns sorted list")] 
        public void ManageGroceryList_ReturnsSortedList() {
            var initial = new List<string> { "zucchini", "banana", "apple" };
            var toAdd = new List<string> { "pear" };
            var toRemove = new List<string> ();
            var expected = new List<string> { "apple", "banana", "pear", "zucchini" };
            var actual = GroceryListOrganizer.ManageGroceryList(initial, toAdd, toRemove);
            Assert.Equal(expected, actual);
        }
        [Fact(DisplayName = "ManageGroceryList works with empty add and remove lists")] 
        public void ManageGroceryList_WorksWithEmptyAddRemove() {
            var initial = new List<string> { "milk", "bread" };
            var toAdd = new List<string> ();
            var toRemove = new List<string> ();
            var expected = new List<string> { "bread", "milk" };
            var actual = GroceryListOrganizer.ManageGroceryList(initial, toAdd, toRemove);
            Assert.Equal(expected, actual);
        }
        [Fact(DisplayName = "ManageGroceryList works when initial list is empty")] 
        public void ManageGroceryList_WorksWithEmptyInitial() {
            var initial = new List<string> ();
            var toAdd = new List<string> { "apple", "banana" };
            var toRemove = new List<string> { "banana" };
            var expected = new List<string> { "apple" };
            var actual = GroceryListOrganizer.ManageGroceryList(initial, toAdd, toRemove);
            Assert.Equal(expected, actual);
        }
    }
}

ProgramTests.cs

Master the essential C# collections, from basic lists to advanced dictionaries and sets. This course blends engaging theory with practical, real-world challenges to help you confidently use collections in your C# projects.

Explore the foundational C# collections: arrays and lists. Learn how to create, manipulate, and apply them to solve practical problems.

Delve into C# dictionaries and related collections for efficient key-based data storage and retrieval.

Discover C# sets and useful collection utilities for advanced data manipulation and analysis.

Challenge: Grocery List Organizer

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Challenge: Grocery List Organizer

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