def get_font_size(self, font_id):
"""The size of the font compressed as a woff2."""
if font_id in SIZE_CACHE:
return SIZE_CACHE[font_id]
ttf_bytes = self.font_loader.load_font(font_id)
woff2_bytes = woff2.ttf_to_woff2(ttf_bytes)
SIZE_CACHE[font_id] = len(woff2_bytes)
return SIZE_CACHE[font_id]
def test_encode(self):
with open("./patch_subset/testdata/Roboto-Regular.ttf",
"rb") as roboto:
roboto_bytes = roboto.read()
roboto_woff2_bytes = woff2.ttf_to_woff2(roboto_bytes)
self.assertIsNot(roboto_woff2_bytes, None)
self.assertGreater(len(roboto_woff2_bytes), 0)
self.assertLess(len(roboto_woff2_bytes), len(roboto_bytes))
self.assertEqual(roboto_woff2_bytes[0:4], b'wOF2')
def subset_size(self, cache_key, codepoints, font_bytes):
"""Returns the size of subset (a set of codepoints) of font_bytes after woff2 encoding."""
if cache_key in self.size_cache:
return self.size_cache[cache_key]
subset_bytes = self.subset(font_bytes, codepoints)
woff2_bytes = woff2.ttf_to_woff2(subset_bytes)
final_size = len(woff2_bytes)
self.size_cache[cache_key] = final_size
return final_size
def test_encode_failure(self):
invalid_bytes = b'aaaaaaaaa'
with self.assertRaises(woff2.Woff2EncodeError):
woff2.ttf_to_woff2(invalid_bytes)