feat(): unit tests for domain entities and basic invariants

tests/unit/test_profile_entity.py

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+from datetime import UTC
+from uuid import UUID, uuid4
+
+from template_project.application.user.entity import UserId
+from template_project.application.user.profile.entity import Profile
+
+
+def test_profile_factory_creates_valid_profile() -> None:
+    user_id = UserId(uuid4())
+
+    profile = Profile.factory(
+        user_id=user_id,
+        email="test@example.com",
+        display_name="Test User",
+        first_name="Test",
+        last_name="User",
+        avatar_url="https://example.com/avatar.jpg",
+        phone="+1234567890",
+    )
+
+    assert isinstance(profile.id, UUID)
+    assert profile.user_id == user_id
+    assert profile.email == "test@example.com"
+    assert profile.display_name == "Test User"
+    assert profile.first_name == "Test"
+    assert profile.last_name == "User"
+    assert profile.avatar_url == "https://example.com/avatar.jpg"
+    assert profile.phone == "+1234567890"
+    assert profile.deleted_at is None
+    assert profile.created_at.tzinfo == UTC
+
+
+def test_profile_factory_with_minimal_fields() -> None:
+    user_id = UserId(uuid4())
+
+    profile = Profile.factory(user_id=user_id)
+
+    assert profile.user_id == user_id
+    assert profile.email is None
+    assert profile.display_name is None
+    assert profile.first_name is None
+    assert profile.last_name is None
+    assert profile.avatar_url is None
+    assert profile.phone is None