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https://github.com/python-pillow/Pillow.git
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7da17ad41e
The previous test configuration made it difficult to run a single test with the pytest CLI. There were two major issues: - The Tests directory was not a package. It now includes a __init__.py file and imports from other tests modules are done with relative imports. - setup.cfg always specified the Tests directory. So even if a specific test were specified as a CLI arg, this configuration would also always include all tests. This configuration has been removed to allow specifying a single test on the command line. Contributors can now run specific tests with a single command such as: $ tox -e py37 -- Tests/test_file_pdf.py::TestFilePdf.test_rgb This makes it easy and faster to iterate on a single test failure and is very familiar to those that have previously used tox and pytest. When running tox or pytest with no arguments, they still discover and runs all tests in the Tests directory.
208 lines
6.4 KiB
Python
208 lines
6.4 KiB
Python
import os
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from glob import glob
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from itertools import product
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from .helper import unittest, PillowTestCase
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from PIL import Image
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_TGA_DIR = os.path.join("Tests", "images", "tga")
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_TGA_DIR_COMMON = os.path.join(_TGA_DIR, "common")
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class TestFileTga(PillowTestCase):
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_MODES = ("L", "LA", "P", "RGB", "RGBA")
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_ORIGINS = ("tl", "bl")
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_ORIGIN_TO_ORIENTATION = {
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"tl": 1,
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"bl": -1
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}
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def test_sanity(self):
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for mode in self._MODES:
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png_paths = glob(
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os.path.join(
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_TGA_DIR_COMMON, "*x*_{}.png".format(mode.lower())))
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for png_path in png_paths:
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reference_im = Image.open(png_path)
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self.assertEqual(reference_im.mode, mode)
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path_no_ext = os.path.splitext(png_path)[0]
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for origin, rle in product(self._ORIGINS, (True, False)):
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tga_path = "{}_{}_{}.tga".format(
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path_no_ext, origin, "rle" if rle else "raw")
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original_im = Image.open(tga_path)
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if rle:
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self.assertEqual(
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original_im.info["compression"], "tga_rle")
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self.assertEqual(
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original_im.info["orientation"],
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self._ORIGIN_TO_ORIENTATION[origin])
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if mode == "P":
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self.assertEqual(
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original_im.getpalette(),
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reference_im.getpalette())
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self.assert_image_equal(original_im, reference_im)
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# Generate a new test name every time so the
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# test will not fail with permission error
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# on Windows.
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out = self.tempfile("temp.tga")
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original_im.save(out, rle=rle)
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saved_im = Image.open(out)
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if rle:
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self.assertEqual(
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saved_im.info["compression"],
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original_im.info["compression"])
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self.assertEqual(
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saved_im.info["orientation"],
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original_im.info["orientation"])
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if mode == "P":
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self.assertEqual(
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saved_im.getpalette(),
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original_im.getpalette())
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self.assert_image_equal(saved_im, original_im)
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def test_id_field(self):
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# tga file with id field
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test_file = "Tests/images/tga_id_field.tga"
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# Act
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im = Image.open(test_file)
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# Assert
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self.assertEqual(im.size, (100, 100))
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def test_id_field_rle(self):
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# tga file with id field
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test_file = "Tests/images/rgb32rle.tga"
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# Act
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im = Image.open(test_file)
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# Assert
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self.assertEqual(im.size, (199, 199))
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def test_save(self):
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test_file = "Tests/images/tga_id_field.tga"
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im = Image.open(test_file)
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out = self.tempfile("temp.tga")
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# Save
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im.save(out)
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test_im = Image.open(out)
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self.assertEqual(test_im.size, (100, 100))
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self.assertEqual(test_im.info["id_section"], im.info["id_section"])
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# RGBA save
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im.convert("RGBA").save(out)
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test_im = Image.open(out)
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self.assertEqual(test_im.size, (100, 100))
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def test_save_id_section(self):
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test_file = "Tests/images/rgb32rle.tga"
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im = Image.open(test_file)
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out = self.tempfile("temp.tga")
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# Check there is no id section
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im.save(out)
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test_im = Image.open(out)
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self.assertNotIn("id_section", test_im.info)
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# Save with custom id section
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im.save(out, id_section=b"Test content")
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test_im = Image.open(out)
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self.assertEqual(test_im.info["id_section"], b"Test content")
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# Save with custom id section greater than 255 characters
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id_section = b"Test content" * 25
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self.assert_warning(UserWarning,
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lambda: im.save(out, id_section=id_section))
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test_im = Image.open(out)
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self.assertEqual(test_im.info["id_section"], id_section[:255])
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test_file = "Tests/images/tga_id_field.tga"
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im = Image.open(test_file)
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# Save with no id section
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im.save(out, id_section="")
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test_im = Image.open(out)
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self.assertNotIn("id_section", test_im.info)
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def test_save_orientation(self):
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test_file = "Tests/images/rgb32rle.tga"
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im = Image.open(test_file)
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self.assertEqual(im.info["orientation"], -1)
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out = self.tempfile("temp.tga")
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im.save(out, orientation=1)
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test_im = Image.open(out)
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self.assertEqual(test_im.info["orientation"], 1)
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def test_save_rle(self):
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test_file = "Tests/images/rgb32rle.tga"
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im = Image.open(test_file)
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self.assertEqual(im.info["compression"], "tga_rle")
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out = self.tempfile("temp.tga")
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# Save
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im.save(out)
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test_im = Image.open(out)
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self.assertEqual(test_im.size, (199, 199))
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self.assertEqual(test_im.info["compression"], "tga_rle")
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# Save without compression
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im.save(out, compression=None)
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test_im = Image.open(out)
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self.assertNotIn("compression", test_im.info)
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# RGBA save
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im.convert("RGBA").save(out)
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test_im = Image.open(out)
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self.assertEqual(test_im.size, (199, 199))
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test_file = "Tests/images/tga_id_field.tga"
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im = Image.open(test_file)
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self.assertNotIn("compression", im.info)
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# Save with compression
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im.save(out, compression="tga_rle")
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test_im = Image.open(out)
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self.assertEqual(test_im.info["compression"], "tga_rle")
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def test_save_l_transparency(self):
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# There are 559 transparent pixels in la.tga.
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num_transparent = 559
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in_file = "Tests/images/la.tga"
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im = Image.open(in_file)
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self.assertEqual(im.mode, "LA")
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self.assertEqual(
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im.getchannel("A").getcolors()[0][0], num_transparent)
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out = self.tempfile("temp.tga")
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im.save(out)
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test_im = Image.open(out)
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self.assertEqual(test_im.mode, "LA")
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self.assertEqual(
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test_im.getchannel("A").getcolors()[0][0], num_transparent)
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self.assert_image_equal(im, test_im)
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if __name__ == '__main__':
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unittest.main()
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