ObjectHelperTest.cs

using System.Linq;
using System.Collections.Generic;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using DatabaseSimulator.Miscellaneous;
using DatabaseSimulator;
using System;
using DatabaseSimulator.Exceptions;

namespace DatabaseSimulatorTest;

[TestClass]
public class ObjectHelperTest
{
    [TestMethod]
    public void GetCommonProperties()
    {
        List<string> commonProps = ObjectHelper.GetCommonProperties<User, DummyUser>().ToList();

        List<string> expectedCommon = new List<string> { "FirstName", "Birthday", "Email" };

        Assert.AreEqual(commonProps.Intersect(expectedCommon).Count(), expectedCommon.Count);
    }

    [TestMethod]
    public void CopyTo()
    {
        User user = new User(
            firstName: "Lionel",
            lastName: "Messi",
            birthday: DateTime.Now,
            email: "leomessi@goat.com"
        );

        DummyUser dummyUser = new DummyUser();

        ObjectHelper.CopyTo(user, dummyUser);

        Assert.IsTrue(
            user.FirstName.Equals(dummyUser.FirstName)
                && user.Birthday.Equals(dummyUser.Birthday)
                && user.Email.Equals(dummyUser.Email)
        );
    }

    [TestMethod]
    public void Set()
    {
        DummyUser dummyUser = new DummyUser();
        string newName = "Michael";

        ObjectHelper.Set(dummyUser, "FirstName", newName);

        Assert.AreEqual(dummyUser.FirstName, newName);

        Assert.ThrowsException<ValueTypeMismatchException>(
            () => ObjectHelper.Set(dummyUser, "FirstName", 987456)
        );
        Assert.ThrowsException<InexistantPropertyException>(
            () => ObjectHelper.Set(dummyUser, "JeNexistePas", "PasDuTout")
        );
    }
}