Add chat pagination logging fallback and bump version to 2.2.5

.gitea/workflows/ci.yml

@@ -28,7 +28,7 @@ jobs:
 
       - name: Validate syntax
         run: |
-          python -m py_compile app_version.py main.py build.py updater_gui.py tests/test_auth_relogin_smoke.py tests/test_auto_update_service.py tests/test_chat_actions.py tests/test_token_store.py
+          python -m py_compile app_version.py main.py build.py updater_gui.py tests/test_auto_update_service.py tests/test_chat_actions.py tests/test_main_contracts.py tests/test_token_store.py tests/test_update_reentry_runtime.py tests/test_update_service.py tests/test_updater_gui.py
 
       - name: Run tests
         run: |

app_version.py

@@ -1 +1 @@
-APP_VERSION = "2.2.1"
+APP_VERSION = "2.2.5"

main.py

@@ -49,7 +49,7 @@ UPDATE_REPOSITORY = ""
 UPDATE_REPOSITORY_URL = "https://git.daemonlord.ru/benya/AnabasisChatRemove"
 UPDATE_CHANNEL_DEFAULT = "stable"
 UPDATE_REQUEST_TIMEOUT = 8
-AUTH_ERROR_CONTEXTS = ("load_chats", "execute_user_action", "set_user_admin", "_unused")
+AUTH_ERROR_CONTEXTS = ("load_chats", "execute_user_action", "set_user_admin")
 
 
 def get_resource_path(relative_path):
@@ -171,6 +171,7 @@ class VkChatManager(QMainWindow):
         self.update_channel = UPDATE_CHANNEL_DEFAULT
         self.update_checker = None
         self.update_thread = None
+        self._update_in_progress = False
         self._update_check_silent = False
         self._bulk_worker_thread = None
         self._bulk_worker = None
@@ -462,10 +463,12 @@ class VkChatManager(QMainWindow):
         self._log_event("update_channel", f"update_channel={self.update_channel}")
 
     def check_for_updates(self, silent_no_updates=False):
-        if self.update_thread and self.update_thread.isRunning():
+        if self._update_in_progress:
+            self.status_label.setText("Статус: проверка обновлений уже выполняется...")
             return
 
         self._update_check_silent = silent_no_updates
+        self._update_in_progress = True
         self._set_update_action_state(True)
         channel_label = "бета" if self.update_channel == "beta" else "релизы"
         self.status_label.setText(f"Статус: проверка обновлений ({channel_label})...")
@@ -485,14 +488,11 @@ class VkChatManager(QMainWindow):
         self.update_checker.check_failed.connect(self.update_thread.quit)
         self.update_checker.check_finished.connect(self.update_checker.deleteLater)
         self.update_checker.check_failed.connect(self.update_checker.deleteLater)
+        self.update_thread.finished.connect(self._on_update_thread_finished)
         self.update_thread.finished.connect(self.update_thread.deleteLater)
         self.update_thread.start()
 
     def _on_update_check_finished(self, result):
-        self._set_update_action_state(False)
-        self.update_checker = None
-        self.update_thread = None
-
         if result.get("has_update"):
             latest_version = result.get("latest_version") or result.get("latest_tag") or "unknown"
             self.status_label.setText(f"Статус: доступно обновление {latest_version}")
@@ -551,9 +551,6 @@ class VkChatManager(QMainWindow):
             QMessageBox.information(self, "Обновления", f"Установлена актуальная версия в канале {channel_label}.")
 
     def _on_update_check_failed(self, error_text):
-        self._set_update_action_state(False)
-        self.update_checker = None
-        self.update_thread = None
         self._log_event("update_check_failed", error_text, level="WARN")
         if not self.update_repository_url:
             self.status_label.setText("Статус: обновления не настроены (URL репозитория не задан).")
@@ -570,6 +567,12 @@ class VkChatManager(QMainWindow):
         if not self._update_check_silent:
             QMessageBox.warning(self, "Проверка обновлений", error_text)
 
+    def _on_update_thread_finished(self):
+        self._set_update_action_state(False)
+        self._update_in_progress = False
+        self.update_checker = None
+        self.update_thread = None
+
     def setup_token_timer(self):
         self.token_countdown_timer = QTimer(self)
         self.token_countdown_timer.timeout.connect(self.update_token_timer_display)
@@ -702,6 +705,10 @@ class VkChatManager(QMainWindow):
         self._bulk_action_context = "set_user_admin" if action_type == "admin" else "execute_user_action"
         self._bulk_action_success_message_title = success_message_title
         self._bulk_clear_inputs_on_success = clear_inputs_on_success
+        self._log_event(
+            "bulk_action",
+            f"start action={action_type} chats={len(selected_chats)} users={len(user_infos)}",
+        )
 
         self._set_busy(True, f"Статус: выполняется {action_label} (0/{total})...")
         self._start_operation_progress(total, action_label, action_button=action_button)
@@ -736,6 +743,10 @@ class VkChatManager(QMainWindow):
 
     def _on_bulk_action_finished(self, payload):
         results = payload.get("results", []) if isinstance(payload, dict) else []
+        processed = payload.get("processed") if isinstance(payload, dict) else None
+        total = payload.get("total") if isinstance(payload, dict) else None
+        if processed is not None and total is not None:
+            self._log_event("bulk_action", f"done processed={processed} total={total}")
         QMessageBox.information(self, self._bulk_action_success_message_title, "\n".join(results))
         if self._bulk_clear_inputs_on_success:
             self.vk_url_input.clear()
@@ -764,8 +775,8 @@ class VkChatManager(QMainWindow):
             timestamp = QDateTime.currentDateTime().toString("yyyy-MM-dd HH:mm:ss")
             with open(LOG_FILE, "a", encoding="utf-8") as f:
                 f.write(f"[{timestamp}] [{level}] {context}: {message}\n")
-        except Exception:
+        except Exception as exc:
-            pass
+            sys.stderr.write(f"[WARN] log_write_failed: {exc}\n")
 
     def _log_error(self, context, exc):
         self._log("ERROR", context, self._format_vk_error(exc))
@@ -782,8 +793,8 @@ class VkChatManager(QMainWindow):
             if os.path.exists(LOG_BACKUP_FILE):
                 os.remove(LOG_BACKUP_FILE)
             os.replace(LOG_FILE, LOG_BACKUP_FILE)
-        except Exception:
+        except Exception as exc:
-            pass
+            sys.stderr.write(f"[WARN] log_rotate_failed: {exc}\n")
 
     def _format_vk_error(self, exc):
         error = getattr(exc, "error", None)
@@ -895,8 +906,8 @@ class VkChatManager(QMainWindow):
             try:
                 if output_path and os.path.exists(output_path):
                     os.remove(output_path)
-            except Exception:
+            except Exception as exc:
-                pass
+                self._log_event("auth_result_cleanup", f"Не удалось удалить файл результата авторизации: {exc}", level="WARN")
 
     def _on_auth_process_finished(self, exit_code, _exit_status):
         output_path = self.auth_output_path
@@ -933,8 +944,8 @@ class VkChatManager(QMainWindow):
                 try:
                     if os.path.exists(output_path):
                         os.remove(output_path)
-                except Exception:
+                except Exception as exc:
-                    pass
+                    self._log_event("auth_result_cleanup", f"Не удалось удалить файл результата авторизации: {exc}", level="WARN")
         else:
             self._log_event("auth_result", "Файл результата авторизации не найден.", level="WARN")
 
@@ -946,6 +957,7 @@ class VkChatManager(QMainWindow):
             self._log_event("auth_process", "Авторизация уже запущена, повторный запуск пропущен.")
             return
 
+        self._log_event("auth_process", "start")
         if keep_status_text and hasattr(self, "_relogin_status_text"):
             status_text = self._relogin_status_text
             self._relogin_status_text = None
@@ -966,8 +978,8 @@ class VkChatManager(QMainWindow):
         try:
             if os.path.exists(output_path):
                 os.remove(output_path)
-        except Exception:
+        except Exception as exc:
-            pass
+            self._log_event("auth_result_cleanup", f"Не удалось удалить старый файл результата авторизации: {exc}", level="WARN")
 
         program, args = self._build_auth_command(auth_url, output_path)
         self.auth_output_path = output_path
@@ -987,6 +999,7 @@ class VkChatManager(QMainWindow):
             self._auth_relogin_in_progress = False
             return
 
+        self._log_event("auth_process", f"success expires_in={expires_in}")
         self.token = token
         # Сохраняем и получаем корректный expiration_time (0 или будущее время)
         try:
@@ -1120,7 +1133,8 @@ class VkChatManager(QMainWindow):
         try:
             user = self.vk.users.get(user_ids=user_id)[0]
             return f"{user.get('first_name', '')} {user.get('last_name', '')}"
-        except Exception:
+        except Exception as exc:
+            self._log_event("get_user_info", f"Не удалось получить имя пользователя {user_id}: {exc}", level="WARN")
             return f"Пользователь {user_id}"
 
     def _get_selected_chats(self):
@@ -1261,6 +1275,7 @@ class VkChatManager(QMainWindow):
             QMessageBox.warning(self, "Ошибка", "Сначала авторизуйтесь.")
             return
 
+        self._log_event("resolve_ids", f"start count={len(links_list)}")
         self.user_ids_to_process.clear()
         resolved_ids = []
         failed_links = []
@@ -1284,6 +1299,10 @@ class VkChatManager(QMainWindow):
 
         self.user_ids_to_process = resolved_ids
         status_message = f"Статус: Готово к работе с {len(resolved_ids)} пользователем(ем/ями)."
+        self._log_event(
+            "resolve_ids",
+            f"done resolved={len(resolved_ids)} failed={len(failed_links)}",
+        )
         if len(links_list) > 1:
             self._set_vk_url_input_text(f"Загружено {len(resolved_ids)}/{len(links_list)} из списка")
 
@@ -1310,17 +1329,40 @@ class VkChatManager(QMainWindow):
 
         try:
             self._set_busy(True, "Статус: загрузка чатов...")
-            conversations = load_chat_conversations(self._vk_call_with_retry, self.vk)
+            self._log_event("load_chats", "start")
+            conversations = load_chat_conversations(self._vk_call_with_retry, self.vk, log_func=self._log_event)
+            type_counts = {}
+            non_chat_samples = []
+            missing_title_count = 0
             for conv in conversations:
-                if conv["conversation"]["peer"]["type"] != "chat":
+                conv_info = conv.get("conversation", {})
+                peer = conv_info.get("peer", {})
+                peer_type = peer.get("type", "unknown")
+                type_counts[peer_type] = type_counts.get(peer_type, 0) + 1
+                if peer_type != "chat":
+                    if len(non_chat_samples) < 30:
+                        non_chat_samples.append(
+                            {
+                                "type": peer_type,
+                                "peer_id": peer.get("id"),
+                                "local_id": peer.get("local_id"),
+                                "title": (conv_info.get("chat_settings") or {}).get("title", ""),
+                            }
+                        )
                     continue
 
-                chat_id = conv["conversation"]["peer"]["local_id"]
+                chat_id = peer.get("local_id")
-                title = conv["conversation"]["chat_settings"]["title"]
+                chat_settings = conv_info.get("chat_settings") or {}
+                title = chat_settings.get("title", "")
+                if not title:
+                    missing_title_count += 1
                 self.chats.append({"id": chat_id, "title": title})
                 checkbox = QCheckBox(f"{title} (id: {chat_id})")
                 checkbox.setProperty("chat_id", chat_id)
 
+                if "группа магазинов" in title.casefold():
+                    self._log_event("load_chats", f"chat_match title='{title}' id={chat_id}")
+
                 if "AG офис" in title:
                     layouts[0].insertWidget(layouts[0].count() - 1, checkbox)
                     self.office_chat_checkboxes.append(checkbox)
@@ -1342,6 +1384,17 @@ class VkChatManager(QMainWindow):
             self.chat_tabs.setTabText(2, f"AG Склад ({len(self.warehouse_chat_checkboxes)})")
             self.chat_tabs.setTabText(3, f"AG Кофейни ({len(self.coffee_chat_checkboxes)})")
             self.chat_tabs.setTabText(4, f"Прочие ({len(self.other_chat_checkboxes)})")
+            self._log_event(
+                "load_chats",
+                (
+                    f"done total={len(conversations)} "
+                    f"chats={len(self.chats)} "
+                    f"type_counts={type_counts} "
+                    f"missing_titles={missing_title_count}"
+                ),
+            )
+            if non_chat_samples:
+                self._log_event("load_chats", f"non_chat_samples={non_chat_samples}")
         except VkApiError as e:
             if self._handle_vk_api_error("load_chats", e, action_name="загрузки чатов"):
                 return
@@ -1404,7 +1457,8 @@ if __name__ == "__main__":
             idx = sys.argv.index("--auth")
             auth_url = sys.argv[idx + 1]
             output_path = sys.argv[idx + 2]
-        except Exception:
+        except Exception as exc:
+            sys.stderr.write(f"[ERROR] auth_cli_args_invalid: {exc}\n")
             sys.exit(1)
         auth_webview.main_auth(auth_url, output_path)
         sys.exit(0)

services/chat_actions.py

@@ -1,6 +1,15 @@
 from urllib.parse import urlparse
 
 
+def _safe_log(log_func, context, message):
+    if not log_func:
+        return
+    try:
+        log_func(context, message)
+    except TypeError:
+        log_func(f"{context}: {message}")
+
+
 def resolve_user_ids(vk_call_with_retry, vk_api, links):
     resolved_ids = []
     failed_links = []
@@ -23,24 +32,74 @@ def resolve_user_ids(vk_call_with_retry, vk_api, links):
     return resolved_ids, failed_links
 
 
-def load_chat_conversations(vk_call_with_retry, vk_api):
+def load_chat_conversations(vk_call_with_retry, vk_api, log_func=None):
     conversations = []
     start_from = None
     seen_start_tokens = set()
+    total_count = None
+    page_num = 0
     while True:
         params = {"count": 200, "filter": "all"}
         if start_from:
             if start_from in seen_start_tokens:
+                _safe_log(log_func, "load_chats_page", f"stop duplicate next_from={start_from}")
                 break
             params["start_from"] = start_from
             seen_start_tokens.add(start_from)
         response = vk_call_with_retry(vk_api.messages.getConversations, **params)
+        page_num += 1
+        if total_count is None:
+            total_count = response.get("count")
         page_items = response.get("items", [])
+        _safe_log(
+            log_func,
+            "load_chats_page",
+            f"page={page_num} items={len(page_items)} next_from={response.get('next_from')} total={total_count}",
+        )
         if not page_items:
             break
         conversations.extend(page_items)
         start_from = response.get("next_from")
         if not start_from:
             break
+
+    if total_count is not None and total_count > len(conversations):
+        _safe_log(
+            log_func,
+            "load_chats_fallback",
+            f"start offset pagination total={total_count} current={len(conversations)}",
+        )
+        seen_keys = set()
+        for conv in conversations:
+            peer = (conv.get("conversation") or {}).get("peer", {})
+            key = (peer.get("type"), peer.get("id") or peer.get("local_id"))
+            seen_keys.add(key)
+
+        offset = len(conversations)
+        safety_pages = 0
+        while offset < total_count:
+            params = {"count": 200, "filter": "all", "offset": offset}
+            response = vk_call_with_retry(vk_api.messages.getConversations, **params)
+            page_items = response.get("items", [])
+            _safe_log(
+                log_func,
+                "load_chats_fallback",
+                f"offset={offset} items={len(page_items)} total={response.get('count')}",
+            )
+            if not page_items:
+                break
+            for item in page_items:
+                peer = (item.get("conversation") or {}).get("peer", {})
+                key = (peer.get("type"), peer.get("id") or peer.get("local_id"))
+                if key in seen_keys:
+                    continue
+                seen_keys.add(key)
+                conversations.append(item)
+            offset += len(page_items)
+            safety_pages += 1
+            if safety_pages > 50:
+                _safe_log(log_func, "load_chats_fallback", "stop safety_pages>50")
+                break
+
     return conversations
 

tests/test_auth_relogin_smoke.py

@@ -1,60 +0,0 @@
-import unittest
-from pathlib import Path
-
-
-class AuthReloginSmokeTests(unittest.TestCase):
-    @classmethod
-    def setUpClass(cls):
-        cls.main_source = Path("main.py").read_text(encoding="utf-8")
-        cls.vk_source = Path("services/vk_service.py").read_text(encoding="utf-8")
-        cls.update_source = Path("services/update_service.py").read_text(encoding="utf-8")
-
-    def test_auth_command_builder_handles_frozen_and_source(self):
-        self.assertIn("def _build_auth_command(self, auth_url, output_path):", self.main_source)
-        self.assertIn("entry_script_path=os.path.abspath(__file__)", self.main_source)
-        self.assertIn('return sys.executable, ["--auth", auth_url, output_path]', self.vk_source)
-        self.assertIn("script_path = entry_script_path or os.path.abspath(__file__)", self.vk_source)
-
-    def test_auth_runs_via_qprocess(self):
-        self.assertIn("process = QProcess(self)", self.main_source)
-        self.assertIn("process.start(program, args)", self.main_source)
-        self.assertIn("def _on_auth_process_finished(self, exit_code, _exit_status):", self.main_source)
-        self.assertIn("if self.auth_process and self.auth_process.state() == QProcess.ProcessState.NotRunning:", self.main_source)
-
-    def test_force_relogin_has_backoff_and_event_log(self):
-        self.assertIn("AUTH_RELOGIN_BACKOFF_SECONDS = 5.0", self.main_source)
-        self.assertIn("if self._auth_relogin_in_progress:", self.main_source)
-        self.assertIn("force_relogin_backoff", self.main_source)
-        self.assertIn("force_relogin", self.main_source)
-
-    def test_auth_error_paths_trigger_force_relogin(self):
-        self.assertIn(
-            "def _handle_vk_api_error(self, context, exc, action_name=None, ui_message_prefix=None, disable_ui=False):",
-            self.main_source,
-        )
-        self.assertIn("self._force_relogin(exc, action_name or context)", self.main_source)
-        self.assertIn('"load_chats",', self.main_source)
-        self.assertIn('"execute_user_action",', self.main_source)
-        self.assertIn('"set_user_admin",', self.main_source)
-
-    def test_tab_checkbox_lists_use_existing_attributes(self):
-        self.assertIn("self.warehouse_chat_checkboxes", self.main_source)
-        self.assertIn("self.coffee_chat_checkboxes", self.main_source)
-        self.assertNotIn("self.retail_warehouse_checkboxes", self.main_source)
-        self.assertNotIn("self.retail_coffee_checkboxes", self.main_source)
-
-    def test_update_check_actions_exist(self):
-        self.assertIn("from app_version import APP_VERSION", self.main_source)
-        self.assertIn("from services import (", self.main_source)
-        self.assertIn("UpdateChecker", self.main_source)
-        self.assertIn("detect_update_repository_url", self.main_source)
-        self.assertIn('QAction("Проверить обновления", self)', self.main_source)
-        self.assertIn("def check_for_updates(self, silent_no_updates=False):", self.main_source)
-        self.assertIn("class UpdateChecker(QObject):", self.update_source)
-        self.assertIn("def _start_auto_update(self, download_url, latest_version, checksum_url=\"\", download_name=\"\"):", self.main_source)
-        self.assertIn("AutoUpdateService.prepare_update", self.main_source)
-        self.assertIn("AutoUpdateService.launch_gui_updater", self.main_source)
-
-
-if __name__ == "__main__":
-    unittest.main()

tests/test_main_contracts.py

@@ -0,0 +1,114 @@
+import ast
+import unittest
+from pathlib import Path
+
+
+class MainContractsTests(unittest.TestCase):
+    @classmethod
+    def setUpClass(cls):
+        cls.main_source = Path("main.py").read_text(encoding="utf-8-sig")
+        cls.module = ast.parse(cls.main_source)
+        cls.vk_chat_manager = cls._find_class("VkChatManager")
+
+    @classmethod
+    def _find_class(cls, class_name):
+        for node in cls.module.body:
+            if isinstance(node, ast.ClassDef) and node.name == class_name:
+                return node
+        raise AssertionError(f"Class {class_name} not found")
+
+    def _find_method(self, method_name):
+        for node in self.vk_chat_manager.body:
+            if isinstance(node, ast.FunctionDef) and node.name == method_name:
+                return node
+        self.fail(f"Method {method_name} not found")
+
+    def _iter_nodes(self, node):
+        return ast.walk(node)
+
+    def test_auth_error_contexts_contains_only_supported_contexts(self):
+        expected_contexts = {"load_chats", "execute_user_action", "set_user_admin"}
+        for node in self.module.body:
+            if isinstance(node, ast.Assign):
+                for target in node.targets:
+                    if isinstance(target, ast.Name) and target.id == "AUTH_ERROR_CONTEXTS":
+                        actual = set(ast.literal_eval(node.value))
+                        self.assertSetEqual(actual, expected_contexts)
+                        return
+        self.fail("AUTH_ERROR_CONTEXTS assignment not found")
+
+    def test_check_for_updates_has_reentry_guard(self):
+        method = self._find_method("check_for_updates")
+        has_guard = False
+        for node in method.body:
+            if not isinstance(node, ast.If):
+                continue
+            test = node.test
+            if (
+                isinstance(test, ast.Attribute)
+                and isinstance(test.value, ast.Name)
+                and test.value.id == "self"
+                and test.attr == "_update_in_progress"
+            ):
+                has_guard = any(isinstance(stmt, ast.Return) for stmt in node.body)
+                if has_guard:
+                    break
+        self.assertTrue(has_guard, "check_for_updates must return when update is already in progress")
+
+    def test_check_for_updates_connects_thread_finish_handler(self):
+        method = self._find_method("check_for_updates")
+        for node in self._iter_nodes(method):
+            if not isinstance(node, ast.Call):
+                continue
+            func = node.func
+            if not (isinstance(func, ast.Attribute) and func.attr == "connect"):
+                continue
+            value = func.value
+            if not (
+                isinstance(value, ast.Attribute)
+                and value.attr == "finished"
+                and isinstance(value.value, ast.Attribute)
+                and value.value.attr == "update_thread"
+                and isinstance(value.value.value, ast.Name)
+                and value.value.value.id == "self"
+            ):
+                continue
+            if len(node.args) != 1:
+                continue
+            arg = node.args[0]
+            if (
+                isinstance(arg, ast.Attribute)
+                and arg.attr == "_on_update_thread_finished"
+                and isinstance(arg.value, ast.Name)
+                and arg.value.id == "self"
+            ):
+                return
+        self.fail("update_thread.finished must be connected to _on_update_thread_finished")
+
+    def test_on_update_thread_finished_clears_update_state(self):
+        method = self._find_method("_on_update_thread_finished")
+        assignments = {}
+        for node in method.body:
+            if not isinstance(node, ast.Assign) or len(node.targets) != 1:
+                continue
+            target = node.targets[0]
+            if (
+                isinstance(target, ast.Attribute)
+                and isinstance(target.value, ast.Name)
+                and target.value.id == "self"
+            ):
+                assignments[target.attr] = node.value
+
+        self.assertIn("_update_in_progress", assignments)
+        self.assertIn("update_checker", assignments)
+        self.assertIn("update_thread", assignments)
+        self.assertIsInstance(assignments["_update_in_progress"], ast.Constant)
+        self.assertIs(assignments["_update_in_progress"].value, False)
+        self.assertIsInstance(assignments["update_checker"], ast.Constant)
+        self.assertIsNone(assignments["update_checker"].value)
+        self.assertIsInstance(assignments["update_thread"], ast.Constant)
+        self.assertIsNone(assignments["update_thread"].value)
+
+
+if __name__ == "__main__":
+    unittest.main()

tests/test_update_reentry_runtime.py

@@ -0,0 +1,97 @@
+import unittest
+from types import SimpleNamespace
+from unittest import mock
+
+
+class _DummySignal:
+    def __init__(self):
+        self._callbacks = []
+
+    def connect(self, callback):
+        if callback is not None:
+            self._callbacks.append(callback)
+
+    def emit(self, *args, **kwargs):
+        for callback in list(self._callbacks):
+            callback(*args, **kwargs)
+
+
+class _DummyThread:
+    created = 0
+
+    def __init__(self, _parent=None):
+        type(self).created += 1
+        self.started = _DummySignal()
+        self.finished = _DummySignal()
+
+    def start(self):
+        self.started.emit()
+
+    def quit(self):
+        self.finished.emit()
+
+    def deleteLater(self):
+        return None
+
+
+class _DummyChecker:
+    created = 0
+
+    def __init__(self, *_args, **_kwargs):
+        type(self).created += 1
+        self.check_finished = _DummySignal()
+        self.check_failed = _DummySignal()
+
+    def moveToThread(self, _thread):
+        return None
+
+    def run(self):
+        return None
+
+    def deleteLater(self):
+        return None
+
+
+class UpdateReentryRuntimeTests(unittest.TestCase):
+    @classmethod
+    def setUpClass(cls):
+        try:
+            import main  # noqa: PLC0415
+        except Exception as exc:
+            raise unittest.SkipTest(f"main import unavailable: {exc}") from exc
+        cls.main = main
+
+    def test_repeated_update_check_is_ignored_until_thread_finishes(self):
+        _DummyChecker.created = 0
+        _DummyThread.created = 0
+        manager = self.main.VkChatManager.__new__(self.main.VkChatManager)
+        manager._update_in_progress = False
+        manager._update_check_silent = False
+        manager.update_channel = "stable"
+        manager.update_repository_url = "https://example.com/org/repo"
+        manager.update_checker = None
+        manager.update_thread = None
+        manager.status_label = SimpleNamespace(setText=lambda *_args, **_kwargs: None)
+        manager._log_event = lambda *_args, **_kwargs: None
+        manager._set_update_action_state = lambda *_args, **_kwargs: None
+
+        with mock.patch.object(self.main, "UpdateChecker", _DummyChecker), mock.patch.object(self.main, "QThread", _DummyThread):
+            self.main.VkChatManager.check_for_updates(manager, silent_no_updates=True)
+            self.assertTrue(manager._update_in_progress)
+            self.assertEqual(_DummyChecker.created, 1)
+            self.assertEqual(_DummyThread.created, 1)
+            first_thread = manager.update_thread
+
+            self.main.VkChatManager.check_for_updates(manager, silent_no_updates=True)
+            self.assertEqual(_DummyChecker.created, 1)
+            self.assertEqual(_DummyThread.created, 1)
+            self.assertIs(manager.update_thread, first_thread)
+
+            manager.update_checker.check_finished.emit({"has_update": False, "current_version": self.main.APP_VERSION})
+            self.assertFalse(manager._update_in_progress)
+            self.assertIsNone(manager.update_checker)
+            self.assertIsNone(manager.update_thread)
+
+
+if __name__ == "__main__":
+    unittest.main()