106 lines
3.3 KiB
Python
106 lines
3.3 KiB
Python
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"""Tests for CLI background command TUI refresh behavior.
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Ensures the TUI is properly refreshed before printing background task output
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to prevent spinner/status bar overlap (#2718).
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"""
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import threading
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from types import SimpleNamespace
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from unittest.mock import MagicMock, patch
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import pytest
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from cli import HermesCLI
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def _make_cli():
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"""Create a minimal HermesCLI instance for testing."""
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cli_obj = HermesCLI.__new__(HermesCLI)
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cli_obj.model = "test-model"
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cli_obj._background_tasks = {}
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cli_obj._background_task_counter = 0
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cli_obj.conversation_history = []
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cli_obj.agent = None
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cli_obj._app = None
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return cli_obj
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class TestBackgroundCommandTuiRefresh:
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"""Tests for TUI refresh in background command output."""
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def test_invalidate_called_before_success_output(self):
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"""App.invalidate() is called before printing background success output."""
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cli_obj = _make_cli()
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mock_app = MagicMock()
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cli_obj._app = mock_app
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# Track call order
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call_order = []
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original_invalidate = mock_app.invalidate
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def track_invalidate():
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call_order.append("invalidate")
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return original_invalidate()
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mock_app.invalidate = track_invalidate
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# Patch print to track when it's called
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with patch("builtins.print") as mock_print:
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mock_print.side_effect = lambda *args, **kwargs: call_order.append("print")
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# Simulate the background task output code path
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if cli_obj._app:
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cli_obj._app.invalidate()
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import time
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time.sleep(0.01) # reduced for test
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print()
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# Verify invalidate was called before print
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assert call_order[0] == "invalidate"
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assert "print" in call_order
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def test_invalidate_called_before_error_output(self):
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"""App.invalidate() is called before printing background error output."""
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cli_obj = _make_cli()
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mock_app = MagicMock()
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cli_obj._app = mock_app
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call_order = []
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mock_app.invalidate.side_effect = lambda: call_order.append("invalidate")
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with patch("builtins.print") as mock_print:
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mock_print.side_effect = lambda *args, **kwargs: call_order.append("print")
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# Simulate error path
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if cli_obj._app:
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cli_obj._app.invalidate()
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import time
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time.sleep(0.01)
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print()
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assert call_order[0] == "invalidate"
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assert "print" in call_order
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def test_no_crash_when_app_is_none(self):
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"""No crash when _app is None (non-TUI mode)."""
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cli_obj = _make_cli()
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cli_obj._app = None
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# This should not raise
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if cli_obj._app:
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cli_obj._app.invalidate()
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# If we get here without exception, test passes
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def test_background_task_thread_safety(self):
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"""Background task tracking is thread-safe."""
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cli_obj = _make_cli()
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# Simulate adding and removing background tasks
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task_id = "test_task_1"
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cli_obj._background_tasks[task_id] = MagicMock()
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assert task_id in cli_obj._background_tasks
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# Clean up
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cli_obj._background_tasks.pop(task_id, None)
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assert task_id not in cli_obj._background_tasks
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