FluentAssertions

สมมติว่าเรามี Data Structure ดังนี้ คำถามคือเราจะ Assert อย่างไร

public class Todo
{
    public int ID  { get; set; }
    public string Title  { get; set; }
    public bool Completed  { get; set; }
}

public class TodoList
{

    public IEnumerable<Todo> GetTodoList()
    {
        return new []
        {
            new Todo{
                ID = 0,
                Title = "Shopping",
                Completed = false
            },
            new Todo{
                ID = 1,
                Title = "Running",
                Completed = true
            },
            new Todo{
                ID = 2,
                Title = "Reading a book",
                Completed = false
            }
        };
    }
}

ถ้าใช้ xUnit อย่างเดียว อาจจะยุ่งยาก ลองใช้ FluentAssertions

Getting Started

1. ติดตั้ง FluentAssertions

   dotnet add package FluentAssertions --version 5.10.3

2. เรียก using FluentAssertions; แล้วเราสามารถใช้งาน FluentAssertions ได้เลย

   using Xunit;
   using FluentAssertions;
   
   public class TodoListTest
   {
   
       [Fact]
       public void GetTodoListTest()
       {
   
           var todoList = new TodoList();
           var expected =  new []
           {
               new Todo{
                   ID = 0,
                   Title = "Shopping",
                   Completed = false
               },
               new Todo{
                   ID = 1,
                   Title = "Running",
                   Completed = true
               },
               new Todo{
                   ID = 2,
                   Title = "Reading a book",
                   Completed = false
               }
           };
   
           var result = todoList.GetTodoList();
           result.Should().BeEquivalentTo(expected);
       }
   }

Ref

• https://fluentassertions.com/