nunit.failing.cs

using System;
using NUnit.Framework;

namespace Tests
{
    [TestFixture]
    public class Test
    {
        public class Temp
        {
            public string Prop1;
            public string Prop2;
            public int Prop3;
        }

        private readonly Func<Temp, Temp, bool> comparer = (x, y) =>
        {
            Assert.That(x.Prop1, Is.EqualTo(y.Prop1));
            Assert.That(x.Prop2, Is.EqualTo(y.Prop2));
            Assert.That(x.Prop3, Is.EqualTo(y.Prop3));
            return true;
        };

        [Test]
        public void Test1()
        {
            var temp1 = new Temp{Prop1 = "prop11", Prop2 = "prop12", Prop3 = 13};
            var temp2 = new Temp { Prop1 = "prop21", Prop2 = "prop22", Prop3 = 23 };
            var temp3 = new Temp { Prop1 = "prop31", Prop2 = "prop32", Prop3 = 33 };

            //This passes
            Assert.That(new[] {temp1, temp2, temp3},
                Is.EquivalentTo(new[] {temp1, temp2, temp3})
                    .Using(comparer));
            
            //This fails
            Assert.That(new[] {temp1, temp2, temp3},
                Is.EquivalentTo(new[] {temp2, temp1, temp3})
                    .Using(comparer));
        }
    }
}