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Preferentially evict transient images before non-transient ones under storage pressure

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copilot-swe-agent[bot]
2026-06-19 06:48:39 +00:00
committed by GitHub
parent d994a47fc8
commit 051a5b72e0
2 changed files with 25 additions and 3 deletions
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19
kitty_tests/graphics.py
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@@ -1319,6 +1319,25 @@ class TestGraphics(BaseTest):
self.ae(g.image_count, 0)
self.assertEqual(g.disk_cache.total_size, 0)
def test_transient_image_preferential_eviction(self):
# Transient images should be evicted before non-transient ones when
# the storage quota is exceeded, regardless of insertion order.
s = self.create_screen()
g = s.grman
g.storage_limit = 36 * 2
li = make_send_command(s)
# Load a non-transient image first (older atime) and a transient image second.
self.assertEqual(li(a='T', i=1).code, 'OK')
self.assertEqual(li(a='T', i=2, N=1).code, 'OK')
self.assertEqual(g.image_count, 2)
# Adding a third image triggers the quota; the transient image (i=2) must be
# evicted first even though the non-transient image (i=1) is older.
self.assertEqual(li(a='T', i=3).code, 'OK')
self.assertEqual(g.image_count, 2)
self.assertIsNone(g.image_for_client_id(2), 'transient image should have been evicted')
self.assertIsNotNone(g.image_for_client_id(1), 'non-transient image should survive')
self.assertIsNotNone(g.image_for_client_id(3), 'newly added image should survive')
@unittest.skipIf(Image is None, 'PIL not available, skipping PNG tests')
def test_cached_rgba_conversion(self):
from kitty.render_cache import ImageRenderCacheForTesting