Add asserts for error status codes in grpc responses

Signed-off-by: Vladimir Domnich <v.domnich@yadro.com>

pytest_tests/helpers/grpc_responses.py

@@ -0,0 +1,21 @@
+import re
+
+
+# Regex patterns of status codes of Container service (https://github.com/nspcc-dev/neofs-spec/blob/98b154848116223e486ce8b43eaa35fec08b4a99/20-api-v2/container.md)
+CONTAINER_NOT_FOUND = "code = 3072.*message = container not found"
+
+
+# Regex patterns of status codes of Object service (https://github.com/nspcc-dev/neofs-spec/blob/98b154848116223e486ce8b43eaa35fec08b4a99/20-api-v2/object.md)
+OBJECT_ACCESS_DENIED = "code = 2048.*message = access to object operation denied"
+OBJECT_NOT_FOUND = "code = 2049.*message = object not found"
+OBJECT_ALREADY_REMOVED = "code = 2052.*message = object already removed"
+
+
+def error_matches_status(error: Exception, status_pattern: str) -> bool:
+    """
+    Determines whether exception matches specified status pattern.
+
+    We use re.search to be consistent with pytest.raises.
+    """
+    match = re.search(status_pattern, str(error))
+    return match is not None

pytest_tests/testsuites/acl/test_acl.py

@@ -6,6 +6,7 @@ import pytest
 
 import wallet
 from common import ASSETS_DIR
+from grpc_responses import OBJECT_ACCESS_DENIED
 from python_keywords.acl import set_eacl
 from python_keywords.container import create_container
 from python_keywords.neofs_verbs import (delete_object, get_object, get_range,
@@ -77,26 +78,25 @@ class TestACL:
 
     @staticmethod
     def check_no_access_to_container(wallet: str, cid: str, oid: str, file_name: str):
-        err_pattern = '.*access to object operation denied.*'
+        with pytest.raises(Exception, match=OBJECT_ACCESS_DENIED):
-        with pytest.raises(Exception, match=err_pattern):
             get_object(wallet, cid, oid)
 
-        with pytest.raises(Exception, match=err_pattern):
+        with pytest.raises(Exception, match=OBJECT_ACCESS_DENIED):
             put_object(wallet, file_name, cid)
 
-        with pytest.raises(Exception, match=err_pattern):
+        with pytest.raises(Exception, match=OBJECT_ACCESS_DENIED):
             delete_object(wallet, cid, oid)
 
-        with pytest.raises(Exception, match=err_pattern):
+        with pytest.raises(Exception, match=OBJECT_ACCESS_DENIED):
             head_object(wallet, cid, oid)
 
-        with pytest.raises(Exception, match=err_pattern):
+        with pytest.raises(Exception, match=OBJECT_ACCESS_DENIED):
             get_range(wallet, cid, oid, bearer='', range_cut='0:10')
 
-        with pytest.raises(Exception, match=err_pattern):
+        with pytest.raises(Exception, match=OBJECT_ACCESS_DENIED):
             get_range_hash(wallet, cid, oid, bearer_token='', range_cut='0:10')
 
-        with pytest.raises(Exception, match=err_pattern):
+        with pytest.raises(Exception, match=OBJECT_ACCESS_DENIED):
             search_object(wallet, cid)
 
     def check_full_access(self, cid: str, file_name: str, wallet_to_check: Tuple = None) -> str:

pytest_tests/testsuites/container/test_container.py

@@ -5,6 +5,7 @@ import allure
 import pytest
 
 from epoch import tick_epoch
+from grpc_responses import CONTAINER_NOT_FOUND, error_matches_status
 from python_keywords.container import (create_container, delete_container, get_container,
                                        list_containers)
 from utility import placement_policy_from_container
@@ -23,14 +24,14 @@ def test_container_creation(prepare_wallet_and_deposit, name):
         json_wallet = json.load(file)
 
     placement_rule = 'REP 2 IN X CBF 1 SELECT 2 FROM * AS X'
-    options = f" --name {name}" if name else ""
+    options = f"--name {name}" if name else ""
     cid = create_container(wallet, rule=placement_rule, options=options)
 
     containers = list_containers(wallet)
     assert cid in containers, f'Expected container {cid} in containers: {containers}'
 
-    container_info = get_container(wallet, cid, flag='')
+    container_info: str = get_container(wallet, cid, flag='')
-    container_info = container_info.lower() # To ignore case when comparing with expected values
+    container_info = container_info.casefold() # To ignore case when comparing with expected values
 
     info_to_check = {
         f'basic ACL: {PRIVATE_ACL_F} (private)',
@@ -41,13 +42,13 @@ def test_container_creation(prepare_wallet_and_deposit, name):
         info_to_check.add(f'Name={name}')
 
     with allure.step('Check container has correct information'):
-        expected_policy = placement_rule.lower()
+        expected_policy = placement_rule.casefold()
         actual_policy = placement_policy_from_container(container_info)
         assert actual_policy == expected_policy, \
             f'Expected policy\n{expected_policy} but got policy\n{actual_policy}'
 
         for info in info_to_check:
-            expected_info = info.lower()
+            expected_info = info.casefold()
             assert expected_info in container_info, \
                 f'Expected {expected_info} in container info:\n{container_info}'
 
@@ -66,7 +67,8 @@ def wait_for_container_deletion(wallet: str, cid: str) -> None:
             sleep(sleep_interval)
             continue
         except Exception as err:
-            if 'container not found' not in str(err):
+            if error_matches_status(err, CONTAINER_NOT_FOUND):
-                raise AssertionError(f'Expected "container not found" in error, got\n{err}')
                 return
+            raise AssertionError(f'Expected "{CONTAINER_NOT_FOUND}" error, got\n{err}')
+
     raise AssertionError(f'Container was not deleted within {attempts * sleep_interval} sec')

pytest_tests/testsuites/network/test_node_management.py

@@ -8,6 +8,7 @@ from data_formatters import get_wallet_public_key
 from common import (COMPLEX_OBJ_SIZE, MAINNET_BLOCK_TIME, NEOFS_CONTRACT_CACHE_TIMEOUT,
                     NEOFS_NETMAP_DICT, STORAGE_RPC_ENDPOINT_1, STORAGE_WALLET_PASS)
 from epoch import tick_epoch
+from grpc_responses import OBJECT_NOT_FOUND, error_matches_status
 from python_keywords.container import create_container, get_container
 from python_keywords.failover_utils import wait_object_replication_on_nodes
 from python_keywords.neofs_verbs import delete_object, get_object, head_object, put_object
@@ -400,7 +401,8 @@ def wait_for_obj_dropped(wallet: str, cid: str, oid: str, checker) -> None:
             checker(wallet, cid, oid)
             wait_for_gc_pass_on_storage_nodes()
         except Exception as err:
-            if 'object not found' in str(err):
+            if error_matches_status(err, OBJECT_NOT_FOUND):
-                break
+                return
-    else:
+            raise AssertionError(f'Expected "{OBJECT_NOT_FOUND}" error, got\n{err}')
-        raise AssertionError(f'Object {oid} is not dropped from node')
+
+    raise AssertionError(f'Object {oid} was not dropped from node')

pytest_tests/testsuites/object/test_object_api.py

@@ -3,9 +3,11 @@ from time import sleep
 
 import allure
 import pytest
+
 from common import SIMPLE_OBJ_SIZE, COMPLEX_OBJ_SIZE
 from container import create_container
 from epoch import get_epoch, tick_epoch
+from grpc_responses import OBJECT_ALREADY_REMOVED, OBJECT_NOT_FOUND, error_matches_status
 from python_keywords.neofs_verbs import (delete_object, get_object, get_range,
                                          get_range_hash, head_object,
                                          put_object, search_object)
@@ -93,8 +95,8 @@ def test_object_api(prepare_wallet_and_deposit, request, object_size):
     sleep(CLEANUP_TIMEOUT)
 
     with allure.step('Get objects and check errors'):
-        get_object_and_check_error(**wallet_cid, oid=oids[0], err_msg='object already removed')
+        get_object_and_check_error(**wallet_cid, oid=oids[0], error_pattern=OBJECT_ALREADY_REMOVED)
-        get_object_and_check_error(**wallet_cid, oid=oids[1], err_msg='object already removed')
+        get_object_and_check_error(**wallet_cid, oid=oids[1], error_pattern=OBJECT_ALREADY_REMOVED)
 
 
 @allure.title('Test object life time')
@@ -126,17 +128,17 @@ def test_object_api_lifetime(prepare_wallet_and_deposit, request, object_size):
     wait_for_gc_pass_on_storage_nodes()
 
     with allure.step('Check object deleted because it expires-on epoch'):
-        with pytest.raises(Exception, match='.*object not found.*'):
+        with pytest.raises(Exception, match=OBJECT_NOT_FOUND):
             get_object(wallet, cid, oid)
 
 
-def get_object_and_check_error(wallet: str, cid: str, oid: str, err_msg: str):
+def get_object_and_check_error(wallet: str, cid: str, oid: str, error_pattern: str) -> None:
     try:
         get_object(wallet=wallet, cid=cid, oid=oid)
         raise AssertionError(f'Expected object {oid} removed, but it is not')
     except Exception as err:
         logger.info(f'Error is {err}')
-        assert err_msg in str(err), f'Expected message {err_msg} in error: {err}'
+        assert error_matches_status(err, error_pattern), f'Expected {err} to match {error_pattern}'
 
 
 def check_header_is_presented(head_info: dict, object_header: dict):

pytest_tests/testsuites/services/test_http_gate.py

@@ -5,9 +5,11 @@ from time import sleep
 
 import allure
 import pytest
+
 from common import COMPLEX_OBJ_SIZE
 from container import create_container
 from epoch import get_epoch, tick_epoch
+from grpc_responses import OBJECT_NOT_FOUND, error_matches_status
 from python_keywords.http_gate import (get_via_http_curl, get_via_http_gate,
                                        get_via_http_gate_by_attribute, get_via_zip_http_gate,
                                        upload_via_http_gate, upload_via_http_gate_curl)
@@ -128,7 +130,6 @@ class TestHttpGate:
     def test_expiration_epoch_in_http(self):
         cid = create_container(self.wallet, rule=self.PLACEMENT_RULE, basic_acl=PUBLIC_ACL)
         file_path = generate_file()
-        object_not_found_err = 'object not found'
         oids = []
 
         curr_epoch = get_epoch()
@@ -156,7 +157,7 @@ class TestHttpGate:
                 self.try_to_get_object_and_expect_error(
                     cid=cid,
                     oid=oid,
-                    expected_err=object_not_found_err
+                    error_pattern=OBJECT_NOT_FOUND
                 )
 
             with allure.step('Other objects can be get'):
@@ -220,12 +221,13 @@ class TestHttpGate:
 
     @staticmethod
     @allure.step('Try to get object and expect error')
-    def try_to_get_object_and_expect_error(cid: str, oid: str, expected_err: str):
+    def try_to_get_object_and_expect_error(cid: str, oid: str, error_pattern: str) -> None:
         try:
             get_via_http_gate(cid=cid, oid=oid)
             raise AssertionError(f'Expected error on getting object with cid: {cid}')
         except Exception as err:
-            assert expected_err in str(err), f'Expected error {expected_err} in {err}'
+            assert error_matches_status(err, error_pattern), \
+                f'Expected {err} to match {error_pattern}'
 
     @staticmethod
     @allure.step('Verify object can be get using HTTP header attribute')

robot/resources/lib/python_keywords/storage_policy.py

@@ -2,7 +2,7 @@
 
 """
     This module contains keywords which are used for asserting
-    that storage policies are kept.
+    that storage policies are respected.
 """
 
 from typing import Optional
@@ -13,6 +13,8 @@ from robot.api.deco import keyword
 import complex_object_actions
 import neofs_verbs
 from common import NEOFS_NETMAP
+from grpc_responses import OBJECT_NOT_FOUND, error_matches_status
+
 
 ROBOT_AUTO_KEYWORDS = False
 
@@ -142,7 +144,7 @@ def get_nodes_without_object(wallet: str, cid: str, oid: str):
             if res is None:
                 nodes_list.append(node)
         except Exception as err:
-            if 'object not found' in str(err):
+            if error_matches_status(err, OBJECT_NOT_FOUND):
                 nodes_list.append(node)
             else:
                 raise Exception(f'Got error {err} on head object command') from err