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QueryableTests.Join.cs
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using System.Collections.Generic;
using System.Linq.Dynamic.Core.Exceptions;
using System.Linq.Dynamic.Core.Tests.Helpers.Models;
using FluentAssertions;
using NFluent;
using Xunit;
namespace System.Linq.Dynamic.Core.Tests
{
public partial class QueryableTests
{
[Fact]
public void Join_InheritedClasses()
{
// Arrange
var magnus = new Person { Name = "Hedlund, Magnus" };
var terry = new Person { Name = "Adams, Terry" };
var charlotte = new Person { Name = "Weiss, Charlotte" };
var barley = new Pet { Name = "Barley", Owner = terry };
var boots = new Pet { Name = "Boots", Owner = terry };
var whiskers = new Pet { Name = "Whiskers", Owner = charlotte };
var daisy = new SpecialPet { Name = "Daisy", Owner = magnus, IsSpecial = true };
var people = new List<Person> { magnus, terry, charlotte };
var pets = new List<Pet> { barley, boots, whiskers, daisy };
// Act 1
var realQuery = people.AsQueryable()
.Join(
pets,
person => person,
pet => pet.Owner,
(person, pet) => new { OwnerName = person.Name, Pet = pet.Name }
);
var realResult = realQuery.ToList();
// Act 2
var dynamicQuery = people.AsQueryable()
.Join(
pets,
"it",
"Owner",
"new(outer.Name as OwnerName, inner.Name as Pet)"
);
var dynamicResult = dynamicQuery.ToDynamicList();
// Assert
realResult.Should().BeEquivalentTo(dynamicResult);
}
[Fact]
public void Join()
{
// Arrange
var magnus = new Person { Name = "Hedlund, Magnus" };
var terry = new Person { Name = "Adams, Terry" };
var charlotte = new Person { Name = "Weiss, Charlotte" };
var barley = new Pet { Name = "Barley", Owner = terry };
var boots = new Pet { Name = "Boots", Owner = terry };
var whiskers = new Pet { Name = "Whiskers", Owner = charlotte };
var 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 1
var realQuery = people.AsQueryable()
.Join(
pets,
person => person,
pet => pet.Owner,
(person, pet) => new { OwnerName = person.Name, Pet = pet.Name }
);
var realResult = realQuery.ToList();
// Act 2
var dynamicQuery = people.AsQueryable()
.Join(
pets,
"it",
"Owner",
"new(outer.Name as OwnerName, inner.Name as Pet)");
var dynamicResult = dynamicQuery.ToDynamicList();
// Assert
realResult.Should().BeEquivalentTo(dynamicResult);
}
[Fact]
public void JoinOnNullableType_RightNullable()
{
//Arrange
Person magnus = new Person { Id = 1, Name = "Hedlund, Magnus" };
Person terry = new Person { Id = 2, Name = "Adams, Terry" };
Person charlotte = new Person { Id = 3, Name = "Weiss, Charlotte" };
Pet barley = new Pet { Name = "Barley", NullableOwnerId = terry.Id };
Pet boots = new Pet { Name = "Boots", NullableOwnerId = terry.Id };
Pet whiskers = new Pet { Name = "Whiskers", NullableOwnerId = charlotte.Id };
Pet daisy = new Pet { Name = "Daisy", NullableOwnerId = magnus.Id };
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.Id,
pet => pet.NullableOwnerId,
(person, pet) => new { OwnerName = person.Name, Pet = pet.Name });
var dynamicQuery = people.AsQueryable()
.Join(
pets,
"it.Id",
"NullableOwnerId",
"new(outer.Name as OwnerName, inner.Name as Pet)");
//Assert
var realResult = realQuery.ToArray();
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].GetDynamicPropertyValue<string>("OwnerName"));
Assert.Equal(realResult[i].Pet, dynamicResult[i].GetDynamicPropertyValue<string>("Pet"));
}
}
[Fact]
public void JoinOnNullableType_LeftNullable()
{
//Arrange
Person magnus = new Person { NullableId = 1, Name = "Hedlund, Magnus" };
Person terry = new Person { NullableId = 2, Name = "Adams, Terry" };
Person charlotte = new Person { NullableId = 3, Name = "Weiss, Charlotte" };
Pet barley = new Pet { Name = "Barley", OwnerId = terry.Id };
Pet boots = new Pet { Name = "Boots", OwnerId = terry.Id };
Pet whiskers = new Pet { Name = "Whiskers", OwnerId = charlotte.Id };
Pet daisy = new Pet { Name = "Daisy", OwnerId = magnus.Id };
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.NullableId,
pet => pet.OwnerId,
(person, pet) => new { OwnerName = person.Name, Pet = pet.Name });
var dynamicQuery = people.AsQueryable()
.Join(
pets,
"it.NullableId",
"OwnerId",
"new(outer.Name as OwnerName, inner.Name as Pet)");
//Assert
var realResult = realQuery.ToArray();
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].GetDynamicPropertyValue<string>("OwnerName"));
Assert.Equal(realResult[i].Pet, dynamicResult[i].GetDynamicPropertyValue<string>("Pet"));
}
}
[Fact]
public void JoinOnNullableType_NotSameTypesThrowsException()
{
var person = new Person { Id = 1, Name = "Hedlund, Magnus" };
var people = new List<Person> { person };
var pets = new List<Pet> { new Pet { Name = "Daisy", OwnerId = person.Id } };
Check.ThatCode(() =>
people.AsQueryable()
.Join(
pets,
"it.Id",
"Name", // This is wrong
"new(outer.Name as OwnerName, inner.Name as Pet)")).Throws<ParseException>();
}
}
}