feat: Add get transactions usecase

Author: ViniciusBerti

src/modules/get_transactions_by_user/app/get_transactions_by_user_usecase.py

@@ -1,22 +1,24 @@
 from typing import List
+
 from src.shared.domain.entities.transactions import Transaction
 from src.shared.domain.repositories.transaction_repository_interface import ITransactionRepository
-from src.shared.domain.repositories.user_repository_interface import IUserRepository
+from src.shared.helpers.errors.domain_errors import EntityError
 from src.shared.helpers.errors.usecase_errors import NoItemsFound
+from src.shared.infra.external.observability.observability_aws import ObservabilityAWS
 
 
 class GetTransactionsByUserUsecase:
-
-    def __init__(self, repo_transaction: ITransactionRepository, repo_user: IUserRepository):
-        self.repo_transaction = repo_transaction
-        self.repo_user = repo_user
+    def __init__(self, repo: ITransactionRepository, observability: ObservabilityAWS):
+        self.repo = repo
+        self.observability = observability
 
     def __call__(self, user_id: str) -> List[Transaction]:
-        user = self.repo_user.get_user_by_id(user_id)
+        self.observability.log_usecase_in()
 
-        transactions = self.repo_transaction.get_all_transactions_by_user(user_id)
+        if type(user_id) is not str:
+            raise EntityError("user_id")
 
-        if not transactions:
-            raise NoItemsFound("transactions")
+        transactions = self.repo.get_all_transactions_by_user(user_id=user_id)
 
+        self.observability.log_usecase_out()
         return transactions

tests/modules/get_transactions_by_user/app/test_get_transactions_by_user_usecase.py

@@ -0,0 +1,31 @@
+import pytest
+
+from src.modules.get_transactions_by_user.app.get_transactions_by_user_usecase import GetTransactionsByUserUsecase
+from src.shared.helpers.errors.domain_errors import EntityError
+from src.shared.helpers.errors.usecase_errors import NoItemsFound
+from src.shared.infra.external.observability.observability_mock import ObservabilityMock
+from src.shared.infra.repositories.transaction_repository_mock import TransactionRepositoryMock
+
+observability = ObservabilityMock(module_name="get_transactions_by_user")
+
+
+class Test_GetTransactionsByUserUsecase:
+
+    def test_get_transactions_by_user_success(self):
+        repo = TransactionRepositoryMock()
+        usecase = GetTransactionsByUserUsecase(repo=repo, observability=observability)
+
+        first_tx = repo.transactions[0]
+        valid_user_id = first_tx.user_id
+
+        result = usecase(user_id=valid_user_id)
+
+        assert isinstance(result, list)
+        assert all(tx.user_id == valid_user_id for tx in result)
+
+    def test_get_transactions_by_user_invalid_type(self):
+        repo = TransactionRepositoryMock()
+        usecase = GetTransactionsByUserUsecase(repo=repo, observability=observability)
+
+        with pytest.raises(EntityError):
+            usecase(user_id=123)