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QueryableTests.OrderBy.cs
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using System.Linq.Dynamic.Core.Exceptions;
using System.Linq.Dynamic.Core.Tests.Helpers.Models;
using Xunit;
namespace System.Linq.Dynamic.Core.Tests
{
public partial class QueryableTests
{
[Fact]
public void OrderBy_Dynamic()
{
//Arrange
var testList = User.GenerateSampleModels(100);
var qry = testList.AsQueryable();
//Act
var orderById = qry.OrderBy("Id");
var orderByAge = qry.OrderBy("Profile.Age");
var orderByComplex1 = qry.OrderBy("Profile.Age, Id");
//Assert
Assert.Equal(testList.OrderBy(x => x.Id).ToArray(), orderById.ToArray());
Assert.Equal(testList.OrderBy(x => x.Profile.Age).ToArray(), orderByAge.ToArray());
Assert.Equal(testList.OrderBy(x => x.Profile.Age).ThenBy(x => x.Id).ToArray(), orderByComplex1.ToArray());
}
[Fact]
public void OrderBy_Dynamic_AsStringExpression()
{
//Arrange
var testList = User.GenerateSampleModels(100);
var qry = testList.AsQueryable();
//Act
var expected = qry.SelectMany(x => x.Roles.OrderBy(y => y.Name)).Select(x => x.Name);
var orderById = qry.SelectMany("Roles.OrderBy(Name)").Select("Name");
//Assert
Assert.Equal(expected.ToArray(), orderById.Cast<string>().ToArray());
}
[Fact]
public void OrderBy_Dynamic_Exceptions()
{
//Arrange
var testList = User.GenerateSampleModels(100, allowNullableProfiles: true);
var qry = testList.AsQueryable();
//Act
Assert.Throws<ParseException>(() => qry.OrderBy("Bad=3"));
Assert.Throws<ParseException>(() => qry.Where("Id=123"));
Assert.Throws<ArgumentNullException>(() => DynamicQueryableExtensions.OrderBy(null, "Id"));
Assert.Throws<ArgumentNullException>(() => qry.OrderBy(null));
Assert.Throws<ArgumentException>(() => qry.OrderBy(""));
Assert.Throws<ArgumentException>(() => qry.OrderBy(" "));
}
}
}