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105 lines
3.6 KiB
Python
105 lines
3.6 KiB
Python
import io
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import pytest
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from PIL import IcoImagePlugin, Image, ImageDraw
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from .helper import PillowTestCase, assert_image_equal, hopper
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TEST_ICO_FILE = "Tests/images/hopper.ico"
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class TestFileIco(PillowTestCase):
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def test_sanity(self):
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with Image.open(TEST_ICO_FILE) as im:
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im.load()
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self.assertEqual(im.mode, "RGBA")
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self.assertEqual(im.size, (16, 16))
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self.assertEqual(im.format, "ICO")
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self.assertEqual(im.get_format_mimetype(), "image/x-icon")
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def test_invalid_file(self):
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with open("Tests/images/flower.jpg", "rb") as fp:
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self.assertRaises(SyntaxError, IcoImagePlugin.IcoImageFile, fp)
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def test_save_to_bytes(self):
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output = io.BytesIO()
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im = hopper()
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im.save(output, "ico", sizes=[(32, 32), (64, 64)])
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# the default image
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output.seek(0)
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with Image.open(output) as reloaded:
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self.assertEqual(reloaded.info["sizes"], {(32, 32), (64, 64)})
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self.assertEqual(im.mode, reloaded.mode)
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self.assertEqual((64, 64), reloaded.size)
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self.assertEqual(reloaded.format, "ICO")
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assert_image_equal(reloaded, hopper().resize((64, 64), Image.LANCZOS))
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# the other one
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output.seek(0)
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with Image.open(output) as reloaded:
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reloaded.size = (32, 32)
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self.assertEqual(im.mode, reloaded.mode)
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self.assertEqual((32, 32), reloaded.size)
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self.assertEqual(reloaded.format, "ICO")
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assert_image_equal(reloaded, hopper().resize((32, 32), Image.LANCZOS))
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def test_incorrect_size(self):
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with Image.open(TEST_ICO_FILE) as im:
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with self.assertRaises(ValueError):
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im.size = (1, 1)
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def test_save_256x256(self):
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"""Issue #2264 https://github.com/python-pillow/Pillow/issues/2264"""
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# Arrange
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with Image.open("Tests/images/hopper_256x256.ico") as im:
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outfile = self.tempfile("temp_saved_hopper_256x256.ico")
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# Act
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im.save(outfile)
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with Image.open(outfile) as im_saved:
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# Assert
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self.assertEqual(im_saved.size, (256, 256))
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def test_only_save_relevant_sizes(self):
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"""Issue #2266 https://github.com/python-pillow/Pillow/issues/2266
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Should save in 16x16, 24x24, 32x32, 48x48 sizes
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and not in 16x16, 24x24, 32x32, 48x48, 48x48, 48x48, 48x48 sizes
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"""
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# Arrange
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with Image.open("Tests/images/python.ico") as im: # 16x16, 32x32, 48x48
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outfile = self.tempfile("temp_saved_python.ico")
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# Act
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im.save(outfile)
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with Image.open(outfile) as im_saved:
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# Assert
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self.assertEqual(
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im_saved.info["sizes"], {(16, 16), (24, 24), (32, 32), (48, 48)}
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)
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def test_unexpected_size(self):
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# This image has been manually hexedited to state that it is 16x32
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# while the image within is still 16x16
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def open():
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with Image.open("Tests/images/hopper_unexpected.ico") as im:
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self.assertEqual(im.size, (16, 16))
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pytest.warns(UserWarning, open)
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def test_draw_reloaded(self):
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with Image.open(TEST_ICO_FILE) as im:
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outfile = self.tempfile("temp_saved_hopper_draw.ico")
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draw = ImageDraw.Draw(im)
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draw.line((0, 0) + im.size, "#f00")
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im.save(outfile)
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with Image.open(outfile) as im:
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im.save("Tests/images/hopper_draw.ico")
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with Image.open("Tests/images/hopper_draw.ico") as reloaded:
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assert_image_equal(im, reloaded)
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