perf boooooooooooooost

.gitignore

@@ -322,3 +322,4 @@ http-client.private.env.json
 .idea/ApifoxUploaderProjectSetting.xml
 
 .zed
+test.py

src/argenta/_cli/infrastructure/entrypoint_resolver.py

@@ -52,24 +52,30 @@ class EntrypointResolver:
 
     @overload
     def parse_entrypoint_with_type(
-        self, entrypoint_type: type[CallableEntryPoint]
+        self, 
+        entrypoint_object_name: str,
+        entrypoint_type: type[CallableEntryPoint]
     ) -> EntryPoint[Callable[[], None]]: ...
     @overload
     def parse_entrypoint_with_type(
-        self, entrypoint_type: type[EntryPointAsApp]
+        self, 
+        entrypoint_object_name: str,
+        entrypoint_type: type[EntryPointAsApp]
     ) -> EntryPoint[App]: ...
 
     def parse_entrypoint_with_type(
-        self, entrypoint_type: type[CallableEntryPoint] | type[EntryPointAsApp]
+        self, 
+        entrypoint_object_name: str,
+        entrypoint_type: type[CallableEntryPoint] | type[EntryPointAsApp]
     ) -> EntryPoint[Callable[[], None]] | EntryPoint[App]:
         if entrypoint_type is CallableEntryPoint:
-            return self._parse_callable_entrypoint()
+            return self._parse_callable_entrypoint(entrypoint_object_name)
         elif entrypoint_type is EntryPointAsApp:
-            return self._parse_entrypoint_as_app()
+            return self._parse_entrypoint_as_app(entrypoint_object_name)
         raise NotImplementedError
 
-    def _parse_callable_entrypoint(self) -> CallableEntryPoint:
-        resolved_entrypoint = self._resolve_from_string()
+    def _parse_callable_entrypoint(self, entrypoint_object_name: str) -> CallableEntryPoint:
+        resolved_entrypoint = self._resolve_from_string(entrypoint_object_name)
         instance_object = resolved_entrypoint[1]
         if not callable(instance_object):
             raise EntrypointNotCallableError(repr(instance_object))
@@ -82,20 +88,21 @@ class EntrypointResolver:
         instance_object = cast(Callable[[], None], instance_object)
         return CallableEntryPoint(raw_path=resolved_entrypoint[0], instance_object=instance_object)
 
-    def _parse_entrypoint_as_app(self) -> EntryPointAsApp:
-        resolved_entrypoint = self._resolve_from_string()
+    def _parse_entrypoint_as_app(self, entrypoint_object_name: str) -> EntryPointAsApp:
+        resolved_entrypoint = self._resolve_from_string(entrypoint_object_name)
         instance_object = resolved_entrypoint[1]
         if not isinstance(instance_object, App):
             raise EntrypointNotAppInstanceError(repr(instance_object))
         
         return EntryPointAsApp(raw_path=resolved_entrypoint[0], instance_object=instance_object)
         
-    def _resolve_from_string(self) -> tuple[str, object]:
-        file_path, _, attr_name = self._path_to_entrypoint.partition(":")
+    def _resolve_from_string(self, entrypoint_object_name: str) -> tuple[str, object]:
+        file_path: str = self._path_to_entrypoint
+        attr_name: str = entrypoint_object_name
     
         if not file_path or not attr_name:
             raise ResolveFromStringError(
-                f'"{self._path_to_entrypoint}" must be in format "<path/to/file.py>:<attribute>"'
+                f'"{self._path_to_entrypoint}" must be in format "<path/to/file.py>"'
             )
     
         path = Path(file_path).resolve()

src/argenta/app/autocompleter/_ext_features_impl.py

@@ -0,0 +1,122 @@
+__all__ = ['build_session', 'do_prompt']
+
+from typing import Callable, Iterable
+
+from prompt_toolkit import HTML, PromptSession
+from prompt_toolkit.auto_suggest import AutoSuggestFromHistory
+from prompt_toolkit.completion import CompleteEvent, Completer, Completion, ThreadedCompleter
+from prompt_toolkit.cursor_shapes import CursorShape
+from prompt_toolkit.document import Document
+from prompt_toolkit.formatted_text import StyleAndTextTuples
+from prompt_toolkit.history import FileHistory, History, InMemoryHistory, ThreadedHistory
+from prompt_toolkit.key_binding import KeyBindings, KeyPressEvent
+from prompt_toolkit.lexers import Lexer
+from prompt_toolkit.styles import Style
+
+
+class CommandLexer(Lexer):
+    def __init__(self, valid_commands: set[str]) -> None:
+        self.valid_commands: set[str] = valid_commands
+
+    def lex_document(self, document: Document) -> Callable[[int], StyleAndTextTuples]:
+        def get_line_tokens(lineno: int) -> StyleAndTextTuples:
+            if lineno >= len(document.lines):
+                return []
+
+            line_text: str = document.lines[lineno]
+
+            if not line_text.strip():
+                return [("", line_text)]
+
+            first_word: str = line_text.split()[0] if line_text.split() else ""
+
+            if first_word in self.valid_commands:
+                return [("class:valid", line_text)]
+            else:
+                return [("class:invalid", line_text)]
+
+        return get_line_tokens
+
+
+class HistoryCompleter(Completer):
+    def __init__(self, history_container: History, static_commands: set[str]) -> None:
+        self.history_container: History = history_container
+        self.static_commands: set[str] = static_commands
+
+    def get_completions(
+        self, document: Document, complete_event: CompleteEvent
+    ) -> Iterable[Completion]:
+        text: str = document.text_before_cursor
+        history_items: set[str] = set(self.history_container.load_history_strings())
+        all_candidates: set[str] = history_items.union(self.static_commands)
+        matches: list[str] = sorted(cmd for cmd in all_candidates if cmd.startswith(text))
+
+        if not matches:
+            return
+
+        for match in matches:
+            yield Completion(match, start_position=-len(text), display=match)
+
+    @staticmethod
+    def _find_common_prefix(matches: list[str]) -> str:
+        if not matches:
+            return ""
+        common: str = matches[0]
+        for match in matches[1:]:
+            i: int = 0
+            while i < len(common) and i < len(match) and common[i] == match[i]:
+                i += 1
+            common = common[:i]
+        return common
+
+
+def build_session(
+    history_filename: str | None,
+    autocomplete_button: str,
+    command_highlighting: bool,
+    auto_suggestions: bool,
+    all_commands: set[str],
+) -> PromptSession[str]:
+    kb = KeyBindings()
+
+    def _(event: KeyPressEvent) -> None:
+        buff = event.app.current_buffer
+        if buff.complete_state:
+            buff.complete_next()
+            return
+        comps_gen = iter(buff.completer.get_completions(buff.document, CompleteEvent()))
+        try:
+            first = next(comps_gen)
+        except StopIteration:
+            return
+        try:
+            _ = next(comps_gen)
+            buff.start_completion(select_first=False)
+        except StopIteration:
+            buff.apply_completion(first)
+
+    kb.add(autocomplete_button)(_)
+
+    history: InMemoryHistory | ThreadedHistory
+    if history_filename:
+        history = ThreadedHistory(FileHistory(history_filename))
+    else:
+        history = InMemoryHistory()
+
+    style = Style.from_dict({"valid": "#00ff00", "invalid": "#ff0000"})
+    return PromptSession(
+        history=history,
+        completer=ThreadedCompleter(HistoryCompleter(history, all_commands)),
+        complete_while_typing=False,
+        key_bindings=kb,
+        auto_suggest=AutoSuggestFromHistory() if auto_suggestions else None,
+        style=style if command_highlighting else None,
+        lexer=CommandLexer(all_commands) if command_highlighting else None,
+    )
+
+
+def do_prompt(session: PromptSession[str], prompt_text: str | HTML) -> str:
+    return session.prompt(
+        HTML(prompt_text) if isinstance(prompt_text, str) else prompt_text,
+        cursor=CursorShape.BLINKING_BEAM,
+    )

src/argenta/app/autocompleter/entity.py

@@ -1,86 +1,21 @@
+from __future__ import annotations
+
 __all__ = ["AutoCompleter"]
 
 import sys
-from typing import Callable, Iterable
+from typing import TYPE_CHECKING
 
-from prompt_toolkit import HTML, PromptSession
-from prompt_toolkit.auto_suggest import AutoSuggestFromHistory
-from prompt_toolkit.completion import (CompleteEvent, Completer, Completion,
-                                       ThreadedCompleter)
-from prompt_toolkit.cursor_shapes import CursorShape
-from prompt_toolkit.document import Document
-from prompt_toolkit.formatted_text import StyleAndTextTuples
-from prompt_toolkit.history import FileHistory, History, InMemoryHistory, ThreadedHistory
-from prompt_toolkit.key_binding import KeyBindings, KeyPressEvent
-from prompt_toolkit.lexers import Lexer
-from prompt_toolkit.styles import Style
-
-
-class CommandLexer(Lexer):
-    def __init__(self, valid_commands: set[str]) -> None:
-        self.valid_commands: set[str] = valid_commands
-
-    def lex_document(self, document: Document) -> Callable[[int], StyleAndTextTuples]:
-        def get_line_tokens(lineno: int) -> StyleAndTextTuples:
-            if lineno >= len(document.lines):
-                return []
-
-            line_text: str = document.lines[lineno]
-
-            if not line_text.strip():
-                return [("", line_text)]
-
-            first_word: str = line_text.split()[0] if line_text.split() else ""
-
-            if first_word in self.valid_commands:
-                return [("class:valid", line_text)]
-            else:
-                return [("class:invalid", line_text)]
-
-        return get_line_tokens
-
-
-class HistoryCompleter(Completer):
-    def __init__(self, history_container: History, static_commands: set[str]) -> None:
-        self.history_container: History = history_container
-        self.static_commands: set[str] = static_commands
-
-    def get_completions(self, document: Document, complete_event: CompleteEvent) -> Iterable[Completion]:
-        text: str = document.text_before_cursor
-        history_items: set[str] = set(self.history_container.load_history_strings())
-        all_candidates: set[str] = history_items.union(self.static_commands)
-        matches: list[str] = sorted(cmd for cmd in all_candidates if cmd.startswith(text))
-
-        if not matches:
-            return
-
-        for match in matches:
-            yield Completion(
-                match,
-                start_position=-len(text),
-                display=match
-            )
-
-    @staticmethod
-    def _find_common_prefix(matches: list[str]) -> str:
-        if not matches:
-            return ""
-        common: str = matches[0]
-        for match in matches[1:]:
-            i: int = 0
-            while i < len(common) and i < len(match) and common[i] == match[i]:
-                i += 1
-            common = common[:i]
-        return common
+if TYPE_CHECKING:
+    from prompt_toolkit import PromptSession, HTML
 
 
 class AutoCompleter:
     def __init__(
-            self,
-            history_filename: str | None = None,
-            autocomplete_button: str = "tab",
-            command_highlighting: bool = True,
-            auto_suggestions: bool = True,
+        self,
+        history_filename: str | None = None,
+        autocomplete_button: str = "tab",
+        command_highlighting: bool = True,
+        auto_suggestions: bool = True,
     ) -> None:
         self.history_filename: str | None = history_filename
         self.autocomplete_button: str = autocomplete_button
@@ -95,41 +30,14 @@ class AutoCompleter:
             self._fallback_mode = True
             return
             
-        kb = KeyBindings()
+        from ._ext_features_impl import build_session
 
-        def _(event: KeyPressEvent) -> None:
-            buff = event.app.current_buffer
-            if buff.complete_state:
-                buff.complete_next()
-                return
-            comps_gen = iter(buff.completer.get_completions(buff.document, CompleteEvent()))
-            try:
-                first = next(comps_gen)
-            except StopIteration:
-                return
-            try:
-                _ = next(comps_gen)
-                buff.start_completion(select_first=False)
-            except StopIteration:
-                buff.apply_completion(first)
-
-        kb.add(self.autocomplete_button)(_)
-
-        history: InMemoryHistory | ThreadedHistory
-        if self.history_filename:
-            history = ThreadedHistory(FileHistory(self.history_filename))
-        else:
-            history = InMemoryHistory()
-
-        style = Style.from_dict({'valid': '#00ff00', 'invalid': '#ff0000'})
-        self._session = PromptSession(
-            history=history,
-            completer=ThreadedCompleter(HistoryCompleter(history, all_commands)),
-            complete_while_typing=False,
-            key_bindings=kb,
-            auto_suggest=AutoSuggestFromHistory() if self.auto_suggestions else None,
-            style=style if self.command_highlighting else None,
-            lexer=CommandLexer(all_commands) if self.command_highlighting else None,
+        self._session = build_session(
+            self.history_filename,
+            self.autocomplete_button,
+            self.command_highlighting,
+            self.auto_suggestions,
+            all_commands
         )
 
     def prompt(self, prompt_text: str | HTML = ">>> ") -> str:
@@ -137,7 +45,7 @@ class AutoCompleter:
             return input(prompt_text if isinstance(prompt_text, str) else ">>> ")
         if self._session is None:
             raise RuntimeError("Call initial_setup() before using prompt()")
-        return self._session.prompt(
-            HTML(prompt_text) if isinstance(prompt_text, str) else prompt_text,
-            cursor=CursorShape.BLINKING_BEAM
-        )
+            
+        from ._ext_features_impl import do_prompt
+            
+        return do_prompt(self._session, prompt_text)

src/argenta/app/models.py

@@ -3,8 +3,6 @@ __all__ = ["App"]
 import difflib
 from typing import Never, TypeAlias
 
-from rich.console import Console
-
 from argenta.app.autocompleter import AutoCompleter
 from argenta.app.behavior_handlers.models import (BehaviorHandlersFabric,
                                                   BehaviorHandlersSettersMixin)
@@ -189,7 +187,7 @@ class App(BaseApp):
         repeat_command_groups_printing: bool = False,
         override_system_messages: bool = False,
         autocompleter: AutoCompleter | None = None,
-        printer: Printer = Console().print,
+        printer: Printer | None = None,
     ) -> None:
         """
         Public. The essence of the application itself.
@@ -206,6 +204,7 @@ class App(BaseApp):
         :param printer: system messages text output function
         :return: None
         """
+        from rich.console import Console
         super().__init__(
             prompt=prompt,
             initial_message=initial_message,
@@ -216,7 +215,7 @@ class App(BaseApp):
             repeat_command_groups_printing=repeat_command_groups_printing,
             override_system_messages=override_system_messages,
             autocompleter=autocompleter or AutoCompleter(),
-            printer=printer,
+            printer=printer or Console().print,
         )
 
     def include_router(self, router: Router) -> None:

src/argenta/orchestrator/entity.py

@@ -28,7 +28,7 @@ class Orchestrator:
         self._auto_inject_handlers: bool = auto_inject_handlers
 
         if self._arg_parser is not None:
-            self._arg_parser._parse_args()
+            self._arg_parser._parse_args()  # pyright: ignore[reportPrivateUsage]
 
     def run_repl(self, app: App) -> None:
         """
@@ -41,4 +41,4 @@ class Orchestrator:
         )
         setup_dishka(app, container, auto_inject=self._auto_inject_handlers)
 
-        app._run_repl()
+        app._run_repl()  # pyright: ignore[reportPrivateUsage]

src/argenta/response/entity.py

@@ -1,6 +1,11 @@
+from __future__ import annotations
+
 __all__ = ["Response"]
 
-from dishka import Container
+from typing import TYPE_CHECKING
+
+if TYPE_CHECKING:
+    from dishka import Container
 
 from argenta.command import InputFlags
 from argenta.response.status import ResponseStatus

src/argenta/router/entity.py

@@ -3,8 +3,6 @@ __all__ = ["Router"]
 from inspect import get_annotations, getfullargspec, getsourcefile, getsourcelines
 from typing import Callable
 
-from rich.console import Console
-
 from argenta.app.protocols import HandlerFunc
 from argenta.command import Command, InputCommand, InputFlags
 from argenta.command.flag import ValidationStatus
@@ -20,7 +18,7 @@ from argenta.router.exceptions import (RepeatedAliasNameException,
 class Router:
     def __init__(
         self,
-        title: str = "Default title",
+        title: str = "Title",
         *,
         disable_redirect_stdout: bool = False,
     ):
@@ -175,6 +173,7 @@ class Router:
         response_arg_annotation = func_annotations.get(response_arg)
 
         if response_arg_annotation is not None and response_arg_annotation is not Response:
+            from rich.console import Console
             source_line: int = getsourcelines(func)[1]
             Console().print(
                 f'\nFile "{getsourcefile(func)}", line {source_line}\n[b red]WARNING:[/b red] [i]The typehint '

tests/unit_tests/test_autocompleter.py

@@ -10,14 +10,11 @@ from prompt_toolkit.completion import CompleteEvent
 from prompt_toolkit.document import Document
 from prompt_toolkit.history import InMemoryHistory
 
-from argenta.app.autocompleter.entity import (
-    AutoCompleter,
-    CommandLexer,
-    HistoryCompleter
-)
-
+from argenta.app.autocompleter._ext_features_impl import CommandLexer, HistoryCompleter
+from argenta.app.autocompleter.entity import AutoCompleter
 
 COMMANDS: set[str] = {"start", "stop", "status"}
+_IMPL = "argenta.app.autocompleter._ext_features_impl"
 
 
 def test_autocompleter_initializes_with_default_params() -> None:
@@ -33,7 +30,7 @@ def test_autocompleter_initializes_with_custom_params() -> None:
         history_filename="test.txt",
         autocomplete_button="c-space",
         command_highlighting=False,
-        auto_suggestions=False
+        auto_suggestions=False,
     )
     assert completer.history_filename == "test.txt"
     assert completer.autocomplete_button == "c-space"
@@ -191,8 +188,10 @@ def test_history_completer_returns_early_when_no_matches() -> None:
 def test_autocompleter_initial_setup_with_commands() -> None:
     completer = AutoCompleter()
 
-    with patch.object(sys.stdin, 'isatty', return_value=True), \
-         patch('argenta.app.autocompleter.entity.PromptSession') as mock_session:
+    with (
+        patch.object(sys.stdin, "isatty", return_value=True),
+        patch(f"{_IMPL}.PromptSession") as mock_session,
+    ):
         completer.initial_setup({"start", "stop", "status"})
 
     assert completer._session is not None
@@ -201,15 +200,17 @@ def test_autocompleter_initial_setup_with_commands() -> None:
 
 
 def test_autocompleter_initial_setup_with_history_file() -> None:
-    with tempfile.NamedTemporaryFile(mode='w', delete=False, suffix='.txt') as f:
+    with tempfile.NamedTemporaryFile(mode="w", delete=False, suffix=".txt") as f:
         history_file = f.name
 
     try:
         completer = AutoCompleter(history_filename=history_file)
 
-        with patch.object(sys.stdin, 'isatty', return_value=True), \
-             patch('argenta.app.autocompleter.entity.PromptSession'), \
-             patch('argenta.app.autocompleter.entity.ThreadedHistory') as mock_threaded_history:
+        with (
+            patch.object(sys.stdin, "isatty", return_value=True),
+            patch(f"{_IMPL}.PromptSession"),
+            patch(f"{_IMPL}.ThreadedHistory") as mock_threaded_history,
+        ):
             completer.initial_setup({"start", "stop"})
 
         assert completer._session is not None
@@ -223,9 +224,11 @@ def test_autocompleter_initial_setup_with_history_file() -> None:
 def test_autocompleter_initial_setup_without_history_file() -> None:
     completer = AutoCompleter(history_filename=None)
 
-    with patch.object(sys.stdin, 'isatty', return_value=True), \
-         patch('argenta.app.autocompleter.entity.PromptSession'), \
-         patch('argenta.app.autocompleter.entity.InMemoryHistory') as mock_in_memory:
+    with (
+        patch.object(sys.stdin, "isatty", return_value=True),
+        patch(f"{_IMPL}.PromptSession"),
+        patch(f"{_IMPL}.InMemoryHistory") as mock_in_memory,
+    ):
         completer.initial_setup({"start", "stop"})
 
     assert completer._session is not None
@@ -236,8 +239,10 @@ def test_autocompleter_initial_setup_without_history_file() -> None:
 def test_autocompleter_initial_setup_with_custom_autocomplete_button() -> None:
     completer = AutoCompleter(autocomplete_button="c-space")
 
-    with patch.object(sys.stdin, 'isatty', return_value=True), \
-         patch('argenta.app.autocompleter.entity.PromptSession'):
+    with (
+        patch.object(sys.stdin, "isatty", return_value=True),
+        patch(f"{_IMPL}.PromptSession"),
+    ):
         completer.initial_setup({"start", "stop"})
 
     assert completer._session is not None
@@ -247,31 +252,34 @@ def test_autocompleter_initial_setup_with_custom_autocomplete_button() -> None:
 def test_autocompleter_initial_setup_without_auto_suggestions() -> None:
     completer = AutoCompleter(auto_suggestions=False)
 
-    with patch.object(sys.stdin, 'isatty', return_value=True), \
-         patch('argenta.app.autocompleter.entity.PromptSession') as mock_session:
+    with (
+        patch.object(sys.stdin, "isatty", return_value=True),
+        patch(f"{_IMPL}.PromptSession") as mock_session,
+    ):
         completer.initial_setup({"start", "stop"})
 
     assert completer._session is not None
     call_kwargs = mock_session.call_args[1]
-    assert call_kwargs['auto_suggest'] is None
+    assert call_kwargs["auto_suggest"] is None
 
 
 def test_autocompleter_initial_setup_without_command_highlighting() -> None:
     completer = AutoCompleter(command_highlighting=False)
 
-    with patch.object(sys.stdin, 'isatty', return_value=True), \
-         patch('argenta.app.autocompleter.entity.PromptSession') as mock_session:
+    with (
+        patch.object(sys.stdin, "isatty", return_value=True),
+        patch(f"{_IMPL}.PromptSession") as mock_session,
+    ):
         completer.initial_setup({"start", "stop"})
 
     assert completer._session is not None
     call_kwargs = mock_session.call_args[1]
-    assert call_kwargs['style'] is None
-    assert call_kwargs['lexer'] is None
+    assert call_kwargs["style"] is None
+    assert call_kwargs["lexer"] is None
 
 
-def test_autocompleter_key_binding_handler_with_complete_state() -> None:
-    completer = AutoCompleter()
-    
+def _setup_captured_handler(completer: AutoCompleter) -> Callable[[Any], None] | None:
+    """Вспомогательная функция: поднимает initial_setup и захватывает kb-хендлер."""
     captured_handler: Callable[[Any], None] | None = None
 
     def capture_kb_add(key: str) -> Callable[[Callable[[Any], None]], Callable[[Any], None]]:
@@ -281,16 +289,22 @@ def test_autocompleter_key_binding_handler_with_complete_state() -> None:
             return func
         return decorator
 
-    with patch.object(sys.stdin, 'isatty', return_value=True), \
-         patch('argenta.app.autocompleter.entity.PromptSession'), \
-         patch('argenta.app.autocompleter.entity.KeyBindings') as mock_kb_class:
-        
+    with (
+        patch.object(sys.stdin, "isatty", return_value=True),
+        patch(f"{_IMPL}.PromptSession"),
+        patch(f"{_IMPL}.KeyBindings") as mock_kb_class,
+    ):
         mock_kb = MagicMock()
         mock_kb.add = capture_kb_add
         mock_kb_class.return_value = mock_kb
-        
         completer.initial_setup({"start", "stop"})
 
+    return captured_handler
+
+
+def test_autocompleter_key_binding_handler_with_complete_state() -> None:
+    completer = AutoCompleter()
+    captured_handler = _setup_captured_handler(completer)
     assert captured_handler is not None
 
     mock_event = MagicMock()
@@ -305,25 +319,8 @@ def test_autocompleter_key_binding_handler_with_complete_state() -> None:
 
 def test_autocompleter_key_binding_handler_no_completions() -> None:
     completer = AutoCompleter()
-    
-    captured_handler: Callable[[Any], None] | None = None
-    
-    def capture_kb_add(key: str) -> Callable[[Callable[[Any], None]], Callable[[Any], None]]:
-        def decorator(func: Callable[[Any], None]) -> Callable[[Any], None]:
-            nonlocal captured_handler
-            captured_handler = func
-            return func
-        return decorator
-    
-    with patch.object(sys.stdin, 'isatty', return_value=True), \
-         patch('argenta.app.autocompleter.entity.PromptSession'), \
-         patch('argenta.app.autocompleter.entity.KeyBindings') as mock_kb_class:
-        
-        mock_kb = MagicMock()
-        mock_kb.add = capture_kb_add
-        mock_kb_class.return_value = mock_kb
-        
-        completer.initial_setup({"start", "stop"})
+    captured_handler = _setup_captured_handler(completer)
+    assert captured_handler is not None
 
     mock_event = MagicMock()
     mock_buff = MagicMock()
@@ -333,7 +330,6 @@ def test_autocompleter_key_binding_handler_no_completions() -> None:
     mock_buff.completer = mock_completer
     mock_event.app.current_buffer = mock_buff
 
-    assert captured_handler is not None
     captured_handler(mock_event)
 
     mock_buff.start_completion.assert_not_called()
@@ -342,25 +338,8 @@ def test_autocompleter_key_binding_handler_no_completions() -> None:
 
 def test_autocompleter_key_binding_handler_single_completion() -> None:
     completer = AutoCompleter()
-    
-    captured_handler: Callable[[Any], None] | None = None
-    
-    def capture_kb_add(key: str) -> Callable[[Callable[[Any], None]], Callable[[Any], None]]:
-        def decorator(func: Callable[[Any], None]) -> Callable[[Any], None]:
-            nonlocal captured_handler
-            captured_handler = func
-            return func
-        return decorator
-    
-    with patch.object(sys.stdin, 'isatty', return_value=True), \
-         patch('argenta.app.autocompleter.entity.PromptSession'), \
-         patch('argenta.app.autocompleter.entity.KeyBindings') as mock_kb_class:
-        
-        mock_kb = MagicMock()
-        mock_kb.add = capture_kb_add
-        mock_kb_class.return_value = mock_kb
-        
-        completer.initial_setup({"start", "stop"})
+    captured_handler = _setup_captured_handler(completer)
+    assert captured_handler is not None
 
     mock_event = MagicMock()
     mock_buff = MagicMock()
@@ -371,7 +350,6 @@ def test_autocompleter_key_binding_handler_single_completion() -> None:
     mock_buff.completer = mock_completer
     mock_event.app.current_buffer = mock_buff
 
-    assert captured_handler is not None
     captured_handler(mock_event)
 
     mock_buff.apply_completion.assert_called_once_with(mock_completion)
@@ -380,25 +358,8 @@ def test_autocompleter_key_binding_handler_single_completion() -> None:
 
 def test_autocompleter_key_binding_handler_multiple_completions() -> None:
     completer = AutoCompleter()
-    
-    captured_handler: Callable[[Any], None] | None = None
-    
-    def capture_kb_add(key: str) -> Callable[[Callable[[Any], None]], Callable[[Any], None]]:
-        def decorator(func: Callable[[Any], None]) -> Callable[[Any], None]:
-            nonlocal captured_handler
-            captured_handler = func
-            return func
-        return decorator
-    
-    with patch.object(sys.stdin, 'isatty', return_value=True), \
-         patch('argenta.app.autocompleter.entity.PromptSession'), \
-         patch('argenta.app.autocompleter.entity.KeyBindings') as mock_kb_class:
-        
-        mock_kb = MagicMock()
-        mock_kb.add = capture_kb_add
-        mock_kb_class.return_value = mock_kb
-        
-        completer.initial_setup({"start", "stop"})
+    captured_handler = _setup_captured_handler(completer)
+    assert captured_handler is not None
 
     mock_event = MagicMock()
     mock_buff = MagicMock()
@@ -410,7 +371,6 @@ def test_autocompleter_key_binding_handler_multiple_completions() -> None:
     mock_buff.completer = mock_completer
     mock_event.app.current_buffer = mock_buff
 
-    assert captured_handler is not None
     captured_handler(mock_event)
 
     mock_buff.start_completion.assert_called_once_with(select_first=False)
@@ -420,43 +380,43 @@ def test_autocompleter_key_binding_handler_multiple_completions() -> None:
 def test_autocompleter_prompt_in_fallback_mode_with_string() -> None:
     completer = AutoCompleter()
 
-    with patch.object(sys.stdin, 'isatty', return_value=False):
+    with patch.object(sys.stdin, "isatty", return_value=False):
         completer.initial_setup({"start", "stop"})
 
     assert completer._fallback_mode is True
 
-    with patch('builtins.input', return_value='test input'):
+    with patch("builtins.input", return_value="test input"):
         result = completer.prompt(">>> ")
 
-    assert result == 'test input'
+    assert result == "test input"
 
 
 def test_autocompleter_prompt_in_fallback_mode_with_html() -> None:
     completer = AutoCompleter()
 
-    with patch.object(sys.stdin, 'isatty', return_value=False):
+    with patch.object(sys.stdin, "isatty", return_value=False):
         completer.initial_setup({"start", "stop"})
 
     assert completer._fallback_mode is True
 
-    with patch('builtins.input', return_value='test input'):
+    with patch("builtins.input", return_value="test input"):
         result = completer.prompt(HTML("<b>>>> </b>"))
 
-    assert result == 'test input'
+    assert result == "test input"
 
 
 def test_autocompleter_prompt_with_html_in_normal_mode() -> None:
     completer = AutoCompleter()
 
     mock_session = MagicMock()
-    mock_session.prompt.return_value = 'test result'
+    mock_session.prompt.return_value = "test result"
     completer._session = mock_session
     completer._fallback_mode = False
 
     html_prompt = HTML("<b>>>> </b>")
     result = completer.prompt(html_prompt)
 
-    assert result == 'test result'
+    assert result == "test result"
     mock_session.prompt.assert_called_once()
     call_args = mock_session.prompt.call_args
     assert call_args[0][0] == html_prompt
@@ -466,13 +426,13 @@ def test_autocompleter_prompt_with_string_in_normal_mode() -> None:
     completer = AutoCompleter()
 
     mock_session = MagicMock()
-    mock_session.prompt.return_value = 'test result'
+    mock_session.prompt.return_value = "test result"
     completer._session = mock_session
     completer._fallback_mode = False
 
     result = completer.prompt(">>> ")
 
-    assert result == 'test result'
+    assert result == "test result"
     mock_session.prompt.assert_called_once()
     call_args = mock_session.prompt.call_args
     assert isinstance(call_args[0][0], HTML)