DateTime Conventional

PropertyNamesOfTypeMustEndWithConvention.cs

using System;
using System.Linq;
using Conventional;
using Conventional.Conventions;

namespace ConventionTests
{
    public class PropertyNamesOfTypeMustEndWith : ConventionSpecification
    {
        private readonly Type _type;
        private readonly string[] _suffixes;

        public PropertyNamesOfTypeMustEndWith(Type type, params string[] suffixes)
        {
            _type = type;
            _suffixes = suffixes;
        }

        public override ConventionResult IsSatisfiedBy(Type type)
        {
            var failedProperties = type.GetProperties()
                .Where(p => p.PropertyType == _type && _suffixes.All(s => !p.Name.EndsWith(s)))
                .Select(p => p.Name)
                .ToArray();

            return failedProperties.Any()
                ? ConventionResult.NotSatisfied(type.FullName, string.Format(FailureMessage, string.Join(",", failedProperties), string.Join(" OR ", _suffixes)))
                : ConventionResult.Satisfied(type.FullName);
        }

        protected override string FailureMessage => "Properties {0} name does not end with {1}";
    }
    
    [TestFixture]
    public class ConventionsForDateTime
    {
        [Test]
        public void DateTimePropertiesMustEndWithDateOrUtc()
        {
            var types = typeof(AccountReservedMessage).Assembly.GetExportedTypes();

            types.MustConformTo(new PropertyNamesOfTypeMustEndWith(typeof(DateTime), "Date", "Utc"))
                .WithFailureAssertion(Assert.Fail);
        }
    }
}