100 lines
3.6 KiB
Python
100 lines
3.6 KiB
Python
# Copyright 2023 (c) Anna Schumaker.
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"""Tests our Gdk.Texture cache."""
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import emmental.texture
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import os
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import pathlib
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import tempfile
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import tests.util
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import unittest
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from gi.repository import Gdk
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class TestTextureCache(unittest.TestCase):
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"""Test our custom cache dictionary."""
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def setUpClass():
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"""Clear the existing cache before testing."""
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emmental.texture.CACHE.clear()
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def setUp(self):
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"""Set up common variables."""
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cover = tests.util.COVER_JPG.absolute().relative_to("/")
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self.target = emmental.texture.CACHE_PATH / cover
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self.target2 = self.target.with_name("cover2.jpg")
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self.cache = emmental.texture._TextureCache()
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def tearDown(self):
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"""Clean up."""
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self.target2.unlink(missing_ok=True)
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(path := self.target).unlink(missing_ok=True)
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while (path := path.parent) != emmental.texture.CACHE_PATH:
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if path.is_dir():
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path.rmdir()
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def test_path(self):
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"""Test the on-disk path of the texture cache."""
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self.assertIsInstance(emmental.texture.TEMP_DIR,
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tempfile.TemporaryDirectory)
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self.assertEqual(emmental.texture.CACHE_PATH,
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pathlib.Path(emmental.texture.TEMP_DIR.name))
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self.assertTrue(emmental.texture.CACHE_PATH.is_dir())
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def test_init(self):
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"""Test that the cache dict is initialized properly."""
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self.assertIsInstance(emmental.texture.CACHE,
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emmental.texture._TextureCache)
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self.assertDictEqual(emmental.texture.CACHE, {})
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self.assertIsInstance(self.cache, dict)
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self.assertDictEqual(self.cache, {})
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def test_drop(self):
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"""Test dropping items from the cache."""
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self.cache[tests.util.COVER_JPG]
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self.cache.drop(tests.util.COVER_JPG)
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self.assertDictEqual(self.cache, {})
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self.assertFalse(self.target.exists())
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self.cache[tests.util.COVER_JPG]
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self.cache.clear()
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self.cache.drop(tests.util.COVER_JPG)
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self.assertFalse(self.target.exists())
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def test_getitem(self):
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"""Test getting and creating items in the cache dict."""
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self.assertIsNone(self.cache[None])
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self.assertIsNone(self.cache[pathlib.Path("/no/such/path")])
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self.assertDictEqual(self.cache, {})
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self.assertListEqual(list(emmental.texture.CACHE_PATH.iterdir()), [])
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texture = self.cache[tests.util.COVER_JPG]
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self.assertIsInstance(texture, Gdk.Texture)
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self.assertDictEqual(self.cache, {tests.util.COVER_JPG: texture})
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self.assertEqual(self.cache[tests.util.COVER_JPG], texture)
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self.assertTrue(self.target.is_file())
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self.cache.clear()
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self.assertIsInstance(self.cache[tests.util.COVER_JPG], Gdk.Texture)
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def test_getitem_cache_only(self):
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"""Test getting a cached item with deleted source path."""
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cover2 = tests.util.COVER_JPG.with_name("cover2.jpg")
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texture = self.cache[tests.util.COVER_JPG]
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self.cache[cover2] = texture
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del self.cache[tests.util.COVER_JPG]
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self.assertEqual(self.cache[cover2], texture)
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self.cache.clear()
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self.target.rename(self.target2)
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self.assertIsInstance(self.cache[cover2], Gdk.Texture)
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def test_mtime_update(self):
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"""Test updating an item in the cache."""
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texture = self.cache[tests.util.COVER_JPG]
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os.utime(self.target, (123456789, 123456789))
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new = self.cache[tests.util.COVER_JPG]
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self.assertIsInstance(new, Gdk.Texture)
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self.assertNotEqual(new, texture)
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