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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.
76 lines
2.7 KiB
Python
76 lines
2.7 KiB
Python
from .helper import unittest, PillowTestCase, fromstring, tostring
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from PIL import Image
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class TestImageDraft(PillowTestCase):
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def setUp(self):
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codecs = dir(Image.core)
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if "jpeg_encoder" not in codecs or "jpeg_decoder" not in codecs:
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self.skipTest("jpeg support not available")
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def draft_roundtrip(self, in_mode, in_size, req_mode, req_size):
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im = Image.new(in_mode, in_size)
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data = tostring(im, 'JPEG')
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im = fromstring(data)
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im.draft(req_mode, req_size)
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return im
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def test_size(self):
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for in_size, req_size, out_size in [
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((435, 361), (2048, 2048), (435, 361)), # bigger
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((435, 361), (435, 361), (435, 361)), # same
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((128, 128), (64, 64), (64, 64)),
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((128, 128), (32, 32), (32, 32)),
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((128, 128), (16, 16), (16, 16)),
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# large requested width
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((435, 361), (218, 128), (435, 361)), # almost 2x
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((435, 361), (217, 128), (218, 181)), # more than 2x
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((435, 361), (109, 64), (218, 181)), # almost 4x
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((435, 361), (108, 64), (109, 91)), # more than 4x
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((435, 361), (55, 32), (109, 91)), # almost 8x
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((435, 361), (54, 32), (55, 46)), # more than 8x
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((435, 361), (27, 16), (55, 46)), # more than 16x
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# and vice versa
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((435, 361), (128, 181), (435, 361)), # almost 2x
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((435, 361), (128, 180), (218, 181)), # more than 2x
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((435, 361), (64, 91), (218, 181)), # almost 4x
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((435, 361), (64, 90), (109, 91)), # more than 4x
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((435, 361), (32, 46), (109, 91)), # almost 8x
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((435, 361), (32, 45), (55, 46)), # more than 8x
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((435, 361), (16, 22), (55, 46)), # more than 16x
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]:
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im = self.draft_roundtrip('L', in_size, None, req_size)
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im.load()
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self.assertEqual(im.size, out_size)
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def test_mode(self):
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for in_mode, req_mode, out_mode in [
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("RGB", "1", "RGB"),
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("RGB", "L", "L"),
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("RGB", "RGB", "RGB"),
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("RGB", "YCbCr", "YCbCr"),
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("L", "1", "L"),
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("L", "L", "L"),
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("L", "RGB", "L"),
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("L", "YCbCr", "L"),
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("CMYK", "1", "CMYK"),
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("CMYK", "L", "CMYK"),
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("CMYK", "RGB", "CMYK"),
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("CMYK", "YCbCr", "CMYK"),
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]:
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im = self.draft_roundtrip(in_mode, (64, 64), req_mode, None)
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im.load()
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self.assertEqual(im.mode, out_mode)
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def test_several_drafts(self):
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im = self.draft_roundtrip('L', (128, 128), None, (64, 64))
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im.draft(None, (64, 64))
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im.load()
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if __name__ == '__main__':
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unittest.main()
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