FluentAssertions

2 minutes to read

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

ติดตั้ง FluentAssertions

dotnet add package FluentAssertions --version 5.10.3

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/

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