CleanArchitecture-template/MyNewProjectName.UnitTest/Domain/BaseEntityTests.cs

using FluentAssertions;
using MyNewProjectName.Domain.Common;

namespace MyNewProjectName.UnitTest.Domain;

public class BaseEntityTests
{
    private class TestEntity : BaseEntity { }

    private class TestDomainEvent : IDomainEvent
    {
        public DateTime OccurredOn { get; } = DateTime.UtcNow;
    }

    [Fact]
    public void AddDomainEvent_ShouldAddEventToCollection()
    {
        // Arrange
        var entity = new TestEntity();
        var domainEvent = new TestDomainEvent();

        // Act
        entity.AddDomainEvent(domainEvent);

        // Assert
        entity.DomainEvents.Should().Contain(domainEvent);
        entity.DomainEvents.Should().HaveCount(1);
    }

    [Fact]
    public void RemoveDomainEvent_ShouldRemoveEventFromCollection()
    {
        // Arrange
        var entity = new TestEntity();
        var domainEvent = new TestDomainEvent();
        entity.AddDomainEvent(domainEvent);

        // Act
        entity.RemoveDomainEvent(domainEvent);

        // Assert
        entity.DomainEvents.Should().BeEmpty();
    }

    [Fact]
    public void ClearDomainEvents_ShouldRemoveAllEvents()
    {
        // Arrange
        var entity = new TestEntity();
        entity.AddDomainEvent(new TestDomainEvent());
        entity.AddDomainEvent(new TestDomainEvent());

        // Act
        entity.ClearDomainEvents();

        // Assert
        entity.DomainEvents.Should().BeEmpty();
    }
}