DynamicClassTest.cs

using System.Collections.Generic;
using System.Xml.Linq;
using FluentAssertions;
using Newtonsoft.Json;
using Xunit;

namespace System.Linq.Dynamic.Core.Tests
{
    public class DynamicClassTest
    {
        [Fact]
        public void DynamicClass_GetProperties_Should_Work()
        {
            // Arrange
            var range = new List<object>
            {
                new { FieldName = "TestFieldName", Value = 3.14159 }
            };

            // Act
            var rangeResult = range.AsQueryable().Select("new(FieldName as FieldName)").ToDynamicList();
            var item = rangeResult.First();

            var call = () => item.GetDynamicMemberNames();
            call.Should().NotThrow();
        }

        [Fact]
        public void DynamicClass_GetPropertyValue_Should_Work()
        {
            // Arrange
            var test = "Test";
            var range = new List<object>
            {
                new { FieldName = test, Value = 3.14159 }
            };

            // Act
            var rangeResult = range.AsQueryable().Select("new(FieldName as FieldName)").ToDynamicList();
            var item = rangeResult.First();

            var value = item.FieldName as string;
            value.Should().Be(test);
        }

        [Fact]
        public void DynamicClass_GettingValue_ByIndex_Should_Work()
        {
            // Arrange
            var test = "Test";
            var range = new List<object>
            {
                new { FieldName = test, Value = 3.14159 }
            };

            // Act
            var rangeResult = range.AsQueryable().Select("new(FieldName as FieldName)").ToDynamicList();
            var item = rangeResult.First();

            var value = item["FieldName"] as string;
            value.Should().Be(test);
        }

        [Fact]
        public void DynamicClass_SettingExistingPropertyValue_ByIndex_Should_Work()
        {
            // Arrange
            var test = "Test";
            var newTest = "abc";
            var range = new List<object>
            {
                new { FieldName = test, Value = 3.14159 }
            };

            // Act
            var rangeResult = range.AsQueryable().Select("new(FieldName as FieldName)").ToDynamicList();
            var item = rangeResult.First();

            item["FieldName"] = newTest;
            var value = item["FieldName"] as string;
            value.Should().Be(newTest);
        }

        [Fact]
        public void DynamicClass_SettingNewProperty_ByIndex_Should_Work()
        {
            // Arrange
            var test = "Test";
            var newTest = "abc";
            var range = new List<object>
            {
                new { FieldName = test, Value = 3.14159 }
            };

            // Act
            var rangeResult = range.AsQueryable().Select("new(FieldName as FieldName)").ToDynamicList();
            var item = rangeResult.First();

            item["X"] = newTest;
            var value = item["X"] as string;
            value.Should().Be(newTest);
        }

        [Fact]
        public void DynamicClass_SerializeToJson_Should_Work()
        {
            // Arrange
            var props = new[]
            {
                new DynamicProperty("Name", typeof(string)), 
                new DynamicProperty("Birthday", typeof(DateTime))
            };
            var type = DynamicClassFactory.CreateType(props);

            var dynamicClass = (DynamicClass) Activator.CreateInstance(type);
            dynamicClass.SetDynamicPropertyValue("Name", "Albert");
            dynamicClass.SetDynamicPropertyValue("Birthday", new DateTime(1879, 3, 14));
            
            // Act
            var json = JsonConvert.SerializeObject(dynamicClass);

            // Assert
            json.Should().Be("{\"Name\":\"Albert\",\"Birthday\":\"1879-03-14T00:00:00\"}");
        }
    }
}