feat: added e2e, unit tests and improved tests pipeline

tests/unit/test_entity.py

@@ -0,0 +1,36 @@
+from datetime import UTC, datetime
+from uuid import UUID, uuid4
+
+import pytest
+
+from template_project.application.common.entity import Entity, to_entity
+from template_project.application.common.errors import EntityAlreadyDeletedError
+
+
+@to_entity
+class DummyEntity(Entity[UUID]):
+    name: str
+
+
+def test_entity_allows_not_deleted_entities() -> None:
+    entity = DummyEntity(
+        id=uuid4(),
+        created_at=datetime.now(tz=UTC),
+        name="Alice",
+    )
+
+    entity.ensure_not_deleted()
+
+
+def test_entity_raise_for_deleted_entities() -> None:
+    entity = DummyEntity(
+        id=uuid4(),
+        created_at=datetime.now(tz=UTC),
+        deleted_at=datetime.now(tz=UTC),
+        name="Bob",
+    )
+
+    with pytest.raises(EntityAlreadyDeletedError) as exc_info:
+        entity.ensure_not_deleted()
+
+    assert str(exc_info.value) == "Entity 'DummyEntity' already deleted"