emmental/tests/test_texture.py

42 lines
1.4 KiB
Python

# Copyright 2023 (c) Anna Schumaker.
"""Tests our Gdk.Texture cache."""
import emmental.texture
import pathlib
import tests.util
import unittest
from gi.repository import Gdk
class TestTextureCache(unittest.TestCase):
"""Test our custom cache dictionary."""
def setUp(self):
"""Set up common variables."""
self.cache = emmental.texture._TextureCache()
def test_init(self):
"""Test that the cache dict is initialized properly."""
self.assertIsInstance(emmental.texture.CACHE,
emmental.texture._TextureCache)
self.assertDictEqual(emmental.texture.CACHE, {})
self.assertIsInstance(self.cache, dict)
self.assertDictEqual(self.cache, {})
def test_drop(self):
"""Test dropping items from the cache."""
self.cache[tests.util.COVER_JPG]
self.cache.drop(tests.util.COVER_JPG)
self.assertDictEqual(self.cache, {})
def test_getitem(self):
"""Test getting and creating items in the cache dict."""
self.assertIsNone(self.cache[None])
self.assertIsNone(self.cache[pathlib.Path("/no/such/path")])
self.assertDictEqual(self.cache, {})
texture = self.cache[tests.util.COVER_JPG]
self.assertIsInstance(texture, Gdk.Texture)
self.assertDictEqual(self.cache, {tests.util.COVER_JPG: texture})
self.assertEqual(self.cache[tests.util.COVER_JPG], texture)