Specs from fields

Examples

        public readonly object Spec = "Public spec field"
            .Assert(() => Assert.Pass("It works!"));

        private object Spec2 = "Private spec field"
            .Assert(() => Assert.Pass("It works!"));

        private object Spec3 = new[]
        {
            "Collection spec field"
                .Assert(() => Assert.Pass("It works!")),
            "Collection spec field"
                .Assert(() => Assert.Pass("It works!"))
        };

SpecificationFromFields.cs

    public abstract class SpecificationFromFields : Specification
    {
        protected override ISpecification[] TestCases()
        {
            var values = GetType()
                .GetFields(BindingFlags.NonPublic |
                           BindingFlags.Public |
                           BindingFlags.Instance)
                .Select(f => f.GetValue(this)).ToList();

            var specs = values.OfType<ISpecification>();
            var enumSpecs = values.OfType<ICollection<ISpecification>>().SelectMany(e => e);
            return specs.Concat(enumSpecs).ToArray();
        }
    }