Add parameterless entity test

[suranig]

Summary

• add ParameterlessEntity class derived from Entity<Guid> with a public parameterless constructor
• test that an instance can be constructed with the parameterless constructor

Testing

• dotnet test (fails: dotnet command not found)

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https://chatgpt.com/codex/tasks/task_e_6846faf84f1c8327857ba21b76f3d849

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

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[cursor]

Bug: Default ID in Public Constructor

The public parameterless constructor of ParameterlessEntity allows creating entities with default(Guid) IDs, which contradicts the Entity class design requiring valid, non-default IDs. Other constructors enforce this rule by throwing ArgumentException, but this public constructor bypasses it, as confirmed by the new test Entity_ParameterlessConstructor_CanInstantiate asserting a default ID. This constructor should be protected/internal for ORM use or generate a valid ID.

tests/AggregateKit.Tests/ParameterlessEntity.cs#L4-L10

AggregateKit/tests/AggregateKit.Tests/ParameterlessEntity.cs

Lines 4 to 10 in 0cf2ee5

	{
	public class ParameterlessEntity : Entity<Guid>
	{
	public ParameterlessEntity() : base()
	{
	}
	}

tests/AggregateKit.Tests/EntityTests.cs#L255-L263

AggregateKit/tests/AggregateKit.Tests/EntityTests.cs

Lines 255 to 263 in 0cf2ee5

	[Fact]
	public void Entity_ParameterlessConstructor_CanInstantiate()
	{
	var entity = new ParameterlessEntity();
	Assert.NotNull(entity);
	Assert.Equal(default(Guid), entity.Id);
	}

Fix in Cursor

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Bug: Entity Validation Inconsistency

The new test Entity_ParameterlessConstructor_CanInstantiate asserts an entity's ID is default(Guid). This conflicts with existing validation that requires non-default GUIDs, causing parameterized constructors to reject default(Guid) IDs while the parameterless constructor allows them. This inconsistency permits entities to exist in an invalid state.

tests/AggregateKit.Tests/EntityTests.cs#L255-L263

AggregateKit/tests/AggregateKit.Tests/EntityTests.cs

Lines 255 to 263 in 0cf2ee5

	[Fact]
	public void Entity_ParameterlessConstructor_CanInstantiate()
	{
	var entity = new ParameterlessEntity();
	Assert.NotNull(entity);
	Assert.Equal(default(Guid), entity.Id);
	}

Fix in Cursor

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