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107 lines
3.4 KiB
Python
107 lines
3.4 KiB
Python
# This file is part of beets.
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# Copyright 2020, David Swarbrick.
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#
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# Permission is hereby granted, free of charge, to any person obtaining
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# a copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sublicense, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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#
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# The above copyright notice and this permission notice shall be
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# included in all copies or substantial portions of the Software.
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"""Tests for image resizing based on filesize."""
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import unittest
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import os
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from test import _common
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from test.helper import TestHelper
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from beets.util import syspath
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from beets.util.artresizer import (
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pil_resize,
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im_resize,
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get_im_version,
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get_pil_version,
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)
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class ArtResizerFileSizeTest(_common.TestCase, TestHelper):
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"""Unittest test case for Art Resizer to a specific filesize."""
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IMG_225x225 = os.path.join(_common.RSRC, b"abbey.jpg")
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IMG_225x225_SIZE = os.stat(syspath(IMG_225x225)).st_size
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def setUp(self):
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"""Called before each test, setting up beets."""
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self.setup_beets()
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def tearDown(self):
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"""Called after each test, unloading all plugins."""
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self.teardown_beets()
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def _test_img_resize(self, resize_func):
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"""Test resizing based on file size, given a resize_func."""
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# Check quality setting unaffected by new parameter
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im_95_qual = resize_func(
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225,
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self.IMG_225x225,
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quality=95,
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max_filesize=0,
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)
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# check valid path returned - max_filesize hasn't broken resize command
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self.assertExists(im_95_qual)
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# Attempt a lower filesize with same quality
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im_a = resize_func(
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225,
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self.IMG_225x225,
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quality=95,
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max_filesize=0.9 * os.stat(syspath(im_95_qual)).st_size,
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)
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self.assertExists(im_a)
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# target size was achieved
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self.assertLess(os.stat(syspath(im_a)).st_size,
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os.stat(syspath(im_95_qual)).st_size)
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# Attempt with lower initial quality
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im_75_qual = resize_func(
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225,
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self.IMG_225x225,
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quality=75,
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max_filesize=0,
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)
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self.assertExists(im_75_qual)
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im_b = resize_func(
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225,
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self.IMG_225x225,
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quality=95,
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max_filesize=0.9 * os.stat(syspath(im_75_qual)).st_size,
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)
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self.assertExists(im_b)
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# Check high (initial) quality still gives a smaller filesize
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self.assertLess(os.stat(syspath(im_b)).st_size,
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os.stat(syspath(im_75_qual)).st_size)
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@unittest.skipUnless(get_pil_version(), "PIL not available")
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def test_pil_file_resize(self):
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"""Test PIL resize function is lowering file size."""
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self._test_img_resize(pil_resize)
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@unittest.skipUnless(get_im_version(), "ImageMagick not available")
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def test_im_file_resize(self):
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"""Test IM resize function is lowering file size."""
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self._test_img_resize(im_resize)
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def suite():
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"""Run this suite of tests."""
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return unittest.TestLoader().loadTestsFromName(__name__)
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if __name__ == "__main__":
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unittest.main(defaultTest="suite")
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