using UnitTestSharp;

namespace Vellum.Generator.UnitTests
{
    public class SaveRegistrationTests : TestFixture
    {
        public static SaveRegistration Variant(string id = "M:Store.Put``1(``0)", int parameter = 0)
        {
            return new SaveRegistration(id, SaveTemplate.OfParameter(parameter));
        }

        public class CtorTests : TestFixture
        {
            public void KeepsEveryArgument()
            {
                SaveRegistration registration = Variant();

                CheckEqual("M:Store.Put``1(``0)", registration.Id);
                CheckEqual(SaveTemplate.OfParameter(0), registration.Template);
            }
        }

        public class EqualsTests : TestFixture
        {
            public void SameValues_AreEqual()
            {
                CheckTrue(Variant().Equals(Variant()));
                CheckTrue(Variant().Equals((object)Variant()));
            }

            public void Null_IsNotEqual()
            {
                CheckFalse(Variant().Equals((SaveRegistration)null));
                CheckFalse(Variant().Equals((object)null));
            }

            public void DifferentId_IsNotEqual()
            {
                CheckFalse(Variant().Equals(Variant(id: "M:Other.Put``1(``0)")));
            }

            public void DifferentTemplate_IsNotEqual()
            {
                CheckFalse(Variant().Equals(Variant(parameter: 1)));
            }
        }

        public class GetHashCodeTests : TestFixture
        {
            public void EqualRegistrations_HaveEqualHashCodes()
            {
                CheckEqual(Variant().GetHashCode(), Variant().GetHashCode());
            }
        }
    }
}