QueryableTests.Join.cs

using System.Collections.Generic;
using System.Linq.Dynamic.Core.Tests.Helpers.Models;
using Xunit;

namespace System.Linq.Dynamic.Core.Tests
{
    public partial class QueryableTests
    {
        [Fact]
        public void Join()
        {
            //Arrange
            Person magnus = new Person { Name = "Hedlund, Magnus" };
            Person terry = new Person { Name = "Adams, Terry" };
            Person charlotte = new Person { Name = "Weiss, Charlotte" };

            Pet barley = new Pet { Name = "Barley", Owner = terry };
            Pet boots = new Pet { Name = "Boots", Owner = terry };
            Pet whiskers = new Pet { Name = "Whiskers", Owner = charlotte };
            Pet daisy = new Pet { Name = "Daisy", Owner = magnus };

            var people = new List<Person> { magnus, terry, charlotte };
            var pets = new List<Pet> { barley, boots, whiskers, daisy };

            //Act
            var realQuery = people.AsQueryable().Join(
                pets,
                person => person,
                pet => pet.Owner,
                (person, pet) => new { OwnerName = person.Name, Pet = pet.Name });

            var dynamicQuery = people.AsQueryable().Join(
                pets,
                "it",
                "Owner",
                "new(outer.Name as OwnerName, inner.Name as Pet)");

            //Assert
            var realResult = realQuery.ToArray();

#if NETSTANDARD
            var dynamicResult = dynamicQuery.ToDynamicArray<DynamicClass>();

            Assert.Equal(realResult.Length, dynamicResult.Length);
            for (int i = 0; i < realResult.Length; i++)
            {
                Assert.Equal(realResult[i].OwnerName, dynamicResult[i].GetDynamicProperty<string>("OwnerName"));
                Assert.Equal(realResult[i].Pet, dynamicResult[i].GetDynamicProperty<string>("Pet"));
            }
#else
            var dynamicResult = dynamicQuery.ToDynamicArray();

            Assert.Equal(realResult.Length, dynamicResult.Length);
            for (int i = 0; i < realResult.Length; i++)
            {
                Assert.Equal(realResult[i].OwnerName, dynamicResult[i].OwnerName);
                Assert.Equal(realResult[i].Pet, dynamicResult[i].Pet);
            }
#endif
        }
    }
}