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manual_slop/tests/test_project_switch_persona_preset.py
T
ed 8d1fa18785 fix(project): Non-blocking project switch with stale-ui tint
When switching projects, the previous implementation ran the entire
save/load/refresh sequence on the main thread. With large project files
or slow disks, this caused the UI to freeze for several seconds.

Fix:
- _switch_project now returns immediately after setting flags; the
  actual work runs in a daemon thread (_do_project_switch)
- New is_project_stale() property returns True while a switch is queued
  or running; the GUI renders an amber/yellow tint overlay to signal
  the controller state lags the user's last click
- AI ops are gated: _api_generate returns HTTP 409, _handle_generate_send
  and _handle_md_only early-return with ai_status feedback, all when
  is_project_stale() is true
- Queued switches (clicking project A then B in rapid succession) are
  coalesced: B replaces A as the target; once A completes, B is
  triggered automatically via the finally branch in _do_project_switch
- New state fields: _project_switch_in_progress, _project_switch_pending_path,
  _project_switch_thread, _project_switch_lock
- AppController state class attributes use hasattr guard for _app to
  keep the controller usable standalone in tests/headless mode

UX:
- Render loop keeps drawing during the switch
- User can still scroll, switch tabs, browse files
- Amber tint + popup explains what's happening and that AI ops are paused
- ai_status shows the target project name

Tests:
- _wait_for_switch helper added for the new async switch flow
- All 7 existing switch tests updated to call _wait_for_switch
- 2 new tests:
  - test_switch_project_non_blocking: verifies _switch_project returns
    in <0.2s and is_project_stale() is True during the switch
  - test_api_generate_blocked_while_stale: verifies _api_generate
    raises HTTPException(409) while a switch is in progress

All 33 related tests pass.
2026-06-04 21:29:12 -04:00

296 lines
11 KiB
Python

import os
import json
import time
import pytest
import tempfile
import shutil
from pathlib import Path
from src.app_controller import AppController
from src import models
from src.personas import PersonaManager
from src import presets, tool_presets
from src import project_manager
def _wait_for_switch(ctrl, timeout: float = 2.0) -> None:
"""Polls until any background project switch thread completes."""
deadline = time.time() + timeout
while time.time() < deadline:
with ctrl._project_switch_lock:
in_progress = ctrl._project_switch_in_progress
thread = ctrl._project_switch_thread
if not in_progress and (thread is None or not thread.is_alive()):
return
time.sleep(0.02)
raise AssertionError("Project switch did not complete within timeout")
def _setup_two_projects(tmp_path):
project_a_dir = tmp_path / "project_a"
project_a_dir.mkdir()
project_a_path = project_a_dir / "project.toml"
project_a_path.write_text('[project]\nname = "project_a"\nactive_preset = "PresetA"\n')
project_b_dir = tmp_path / "project_b"
project_b_dir.mkdir()
project_b_path = project_b_dir / "project.toml"
project_b_path.write_text('[project]\nname = "project_b"\n')
(project_a_dir / "project_personas.toml").write_text(
'[personas."PersonaA"]\nsystem_prompt = "Project A persona"\npreferred_models = []\n'
)
(project_b_dir / "project_personas.toml").write_text(
'[personas."PersonaB"]\nsystem_prompt = "Project B persona"\npreferred_models = []\n'
)
(project_a_dir / "project_presets.toml").write_text(
'[presets."PresetA"]\nsystem_prompt = "Project A preset"\n'
)
(project_b_dir / "project_presets.toml").write_text(
'[presets."PresetB"]\nsystem_prompt = "Project B preset"\n'
)
return project_a_path, project_b_path
def test_switch_project_resets_invalid_persona(tmp_path, monkeypatch):
project_a_path, project_b_path = _setup_two_projects(tmp_path)
ctrl = AppController()
monkeypatch.setattr(ctrl, "_rebuild_rag_index", lambda: None)
monkeypatch.setattr(ctrl, "_flush_to_project", lambda: None)
ctrl.active_project_path = str(project_a_path)
ctrl.project = project_manager.load_project(str(project_a_path))
ctrl.preset_manager = presets.PresetManager(Path(project_a_path).parent)
ctrl.tool_preset_manager = tool_presets.ToolPresetManager(Path(project_a_path).parent)
ctrl.persona_manager = PersonaManager(Path(project_a_path).parent)
ctrl._refresh_from_project()
assert "PersonaA" in ctrl.personas
assert "PersonaB" not in ctrl.personas
ctrl.ui_active_persona = "PersonaA"
ctrl._switch_project(str(project_b_path))
_wait_for_switch(ctrl)
assert "PersonaA" not in ctrl.personas
assert "PersonaB" in ctrl.personas
assert ctrl.ui_active_persona == ""
def test_switch_project_resets_invalid_preset(tmp_path, monkeypatch):
project_a_path, project_b_path = _setup_two_projects(tmp_path)
ctrl = AppController()
monkeypatch.setattr(ctrl, "_rebuild_rag_index", lambda: None)
monkeypatch.setattr(ctrl, "_flush_to_project", lambda: None)
ctrl.active_project_path = str(project_a_path)
ctrl.project = project_manager.load_project(str(project_a_path))
ctrl.preset_manager = presets.PresetManager(Path(project_a_path).parent)
ctrl.tool_preset_manager = tool_presets.ToolPresetManager(Path(project_a_path).parent)
ctrl.persona_manager = PersonaManager(Path(project_a_path).parent)
ctrl._refresh_from_project()
assert ctrl.ui_project_preset_name == "PresetA"
ctrl._switch_project(str(project_b_path))
_wait_for_switch(ctrl)
assert "PresetA" not in ctrl.presets
assert "PresetB" in ctrl.presets
assert ctrl.ui_project_preset_name is None
def test_switch_project_resets_invalid_tool_preset(tmp_path, monkeypatch):
project_a_path, project_b_path = _setup_two_projects(tmp_path)
(Path(project_a_path).parent / "project_tool_presets.toml").write_text(
'[presets."ToolA"]\ndescription = "A"\n[presets.tools."run_powershell"]\nweight = 1\n'
)
(Path(project_b_path).parent / "project_tool_presets.toml").write_text(
'[presets."ToolB"]\ndescription = "B"\n[presets.tools."run_powershell"]\nweight = 1\n'
)
ctrl = AppController()
monkeypatch.setattr(ctrl, "_rebuild_rag_index", lambda: None)
monkeypatch.setattr(ctrl, "_flush_to_project", lambda: None)
ctrl.active_project_path = str(project_a_path)
ctrl.project = project_manager.load_project(str(project_a_path))
ctrl.preset_manager = presets.PresetManager(Path(project_a_path).parent)
ctrl.tool_preset_manager = tool_presets.ToolPresetManager(Path(project_a_path).parent)
ctrl.persona_manager = PersonaManager(Path(project_a_path).parent)
ctrl._refresh_from_project()
ctrl.ui_active_tool_preset = "ToolA"
assert "ToolA" in ctrl.tool_presets
ctrl._switch_project(str(project_b_path))
_wait_for_switch(ctrl)
assert "ToolA" not in ctrl.tool_presets
assert "ToolB" in ctrl.tool_presets
assert ctrl.ui_active_tool_preset is None
def test_switch_project_preserves_global_preset(tmp_path, monkeypatch):
project_a_path, project_b_path = _setup_two_projects(tmp_path)
ctrl = AppController()
monkeypatch.setattr(ctrl, "_rebuild_rag_index", lambda: None)
monkeypatch.setattr(ctrl, "_flush_to_project", lambda: None)
ctrl.active_project_path = str(project_a_path)
ctrl.project = project_manager.load_project(str(project_a_path))
ctrl.preset_manager = presets.PresetManager(Path(project_a_path).parent)
ctrl.tool_preset_manager = tool_presets.ToolPresetManager(Path(project_a_path).parent)
ctrl.persona_manager = PersonaManager(Path(project_a_path).parent)
ctrl._refresh_from_project()
ctrl.ui_global_preset_name = "GlobalPresetA"
original_global = ctrl.ui_global_preset_name
ctrl._switch_project(str(project_b_path))
_wait_for_switch(ctrl)
assert ctrl.ui_global_preset_name == original_global
def test_load_active_project_creates_persona_manager(tmp_path, monkeypatch):
project_a_path, _ = _setup_two_projects(tmp_path)
ctrl = AppController()
monkeypatch.setattr(ctrl, "_rebuild_rag_index", lambda: None)
monkeypatch.setattr(ctrl, "_flush_to_project", lambda: None)
monkeypatch.setattr(ctrl, "_configure_mcp_for_project", lambda: None)
assert not hasattr(ctrl, "persona_manager")
ctrl.active_project_path = str(project_a_path)
ctrl._load_active_project()
assert hasattr(ctrl, "persona_manager")
assert "PersonaA" in ctrl.personas
assert ctrl.ui_active_bias_profile is None or ctrl.ui_active_bias_profile in ctrl.bias_profiles
def test_load_context_preset_missing_raises_keyerror(tmp_path, monkeypatch):
project_a_path, _ = _setup_two_projects(tmp_path)
ctrl = AppController()
monkeypatch.setattr(ctrl, "_rebuild_rag_index", lambda: None)
monkeypatch.setattr(ctrl, "_flush_to_project", lambda: None)
monkeypatch.setattr(ctrl, "_configure_mcp_for_project", lambda: None)
ctrl.active_project_path = str(project_a_path)
ctrl._load_active_project()
with pytest.raises(KeyError, match="Context preset 'NonexistentPreset' not found"):
ctrl.load_context_preset("NonexistentPreset")
def test_switch_project_resets_context_files(tmp_path, monkeypatch):
project_a_path, project_b_path = _setup_two_projects(tmp_path)
proj_a_data = '''[project]
name = "project_a"
[files]
base_dir = "."
paths = [
{ path = "C:/projects/forth/bootslop/main.c", view_mode = "full" },
{ path = "C:/projects/Pikuma/ps1/code/gte_hello/hello_gte.c", view_mode = "full" },
]
'''
project_a_path.write_text(proj_a_data)
proj_b_data = '''[project]
name = "project_b"
[files]
base_dir = "."
paths = [
{ path = "C:/projects/gencpp/base/dependencies/timing.cpp", view_mode = "full" },
{ path = "C:/projects/gencpp/base/dependencies/timing.hpp", view_mode = "full" },
]
'''
project_b_path.write_text(proj_b_data)
ctrl = AppController()
monkeypatch.setattr(ctrl, "_rebuild_rag_index", lambda: None)
monkeypatch.setattr(ctrl, "_flush_to_project", lambda: None)
ctrl.active_project_path = str(project_a_path)
ctrl.project = project_manager.load_project(str(project_a_path))
ctrl.preset_manager = presets.PresetManager(Path(project_a_path).parent)
ctrl.tool_preset_manager = tool_presets.ToolPresetManager(Path(project_a_path).parent)
ctrl.persona_manager = PersonaManager(Path(project_a_path).parent)
ctrl._refresh_from_project()
assert len(ctrl.context_files) == 2
assert any("forth" in f.path for f in ctrl.context_files)
assert any("gte_hello" in f.path for f in ctrl.context_files)
ctrl._switch_project(str(project_b_path))
_wait_for_switch(ctrl)
assert len(ctrl.context_files) == 2
assert all("gencpp" in f.path for f in ctrl.context_files)
assert not any("forth" in f.path for f in ctrl.context_files)
assert not any("gte_hello" in f.path for f in ctrl.context_files)
def test_switch_project_non_blocking(tmp_path, monkeypatch):
"""The switch returns immediately; the heavy work runs in a background
thread. UI calls see is_project_stale() == True while it's running."""
project_a_path, project_b_path = _setup_two_projects(tmp_path)
ctrl = AppController()
monkeypatch.setattr(ctrl, "_rebuild_rag_index", lambda: None)
monkeypatch.setattr(ctrl, "_flush_to_project", lambda: None)
ctrl.active_project_path = str(project_a_path)
ctrl.project = project_manager.load_project(str(project_a_path))
ctrl.preset_manager = presets.PresetManager(Path(project_a_path).parent)
ctrl.tool_preset_manager = tool_presets.ToolPresetManager(Path(project_a_path).parent)
ctrl.persona_manager = PersonaManager(Path(project_a_path).parent)
ctrl._refresh_from_project()
started = time.time()
ctrl._switch_project(str(project_b_path))
elapsed = time.time() - started
assert elapsed < 0.2, f"_switch_project blocked the caller for {elapsed:.2f}s"
assert ctrl.is_project_stale()
_wait_for_switch(ctrl)
assert not ctrl.is_project_stale()
assert ctrl.active_project_path == str(project_b_path)
def test_api_generate_blocked_while_stale(tmp_path, monkeypatch):
"""_api_generate returns 409 when the project switch is in progress."""
project_a_path, project_b_path = _setup_two_projects(tmp_path)
ctrl = AppController()
monkeypatch.setattr(ctrl, "_rebuild_rag_index", lambda: None)
monkeypatch.setattr(ctrl, "_flush_to_project", lambda: None)
ctrl.active_project_path = str(project_a_path)
ctrl.project = project_manager.load_project(str(project_a_path))
ctrl.preset_manager = presets.PresetManager(Path(project_a_path).parent)
ctrl.tool_preset_manager = tool_presets.ToolPresetManager(Path(project_a_path).parent)
ctrl.persona_manager = PersonaManager(Path(project_a_path).parent)
ctrl._refresh_from_project()
ctrl._switch_project(str(project_b_path))
assert ctrl.is_project_stale()
from fastapi import HTTPException
from src.app_controller import _api_generate
from src.models import GenerateRequest
req = GenerateRequest(prompt="hello")
with pytest.raises(HTTPException) as exc_info:
_api_generate(ctrl, req)
assert exc_info.value.status_code == 409
_wait_for_switch(ctrl)
assert not ctrl.is_project_stale()