49 lines
1.6 KiB
Python
49 lines
1.6 KiB
Python
"""Unit tests for the bounded GUI log-panel buffer.
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The buffer decouples logging handlers (any thread, potentially very chatty at
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DEBUG) from the GUI: records are batched by a flush timer instead of posting one
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queued Qt event per record, and overflow drops the oldest records with a count.
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"""
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from __future__ import annotations
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import unittest
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from python_app.gui.app_window import _PanelLogBuffer
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class PanelLogBufferTest(unittest.TestCase):
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"""Bounded capacity, oldest-first eviction, and accurate drop accounting."""
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def test_drain_returns_entries_in_order_and_clears(self) -> None:
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buffer = _PanelLogBuffer()
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buffer.append("INFO", "first", None, None)
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buffer.append("WARN", "second", "details", "key")
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entries, dropped_count = buffer.drain()
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self.assertEqual(dropped_count, 0)
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self.assertEqual(
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entries,
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[("INFO", "first", None, None), ("WARN", "second", "details", "key")],
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)
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self.assertEqual(buffer.drain(), ([], 0))
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def test_overflow_drops_oldest_and_counts(self) -> None:
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buffer = _PanelLogBuffer()
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overflow = 100
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total = _PanelLogBuffer._CAPACITY + overflow
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for index in range(total):
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buffer.append("DEBUG", f"m{index}", None, None)
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entries, dropped_count = buffer.drain()
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self.assertEqual(dropped_count, overflow)
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self.assertEqual(len(entries), _PanelLogBuffer._CAPACITY)
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self.assertEqual(entries[0][1], f"m{overflow}")
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self.assertEqual(entries[-1][1], f"m{total - 1}")
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if __name__ == "__main__":
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unittest.main()
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