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https://github.com/python-pillow/Pillow.git
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d50445ff30
Similar to the recent adoption of Black. isort is a Python utility to sort imports alphabetically and automatically separate into sections. By using isort, contributors can quickly and automatically conform to the projects style without thinking. Just let the tool do it. Uses the configuration recommended by the Black to avoid conflicts of style. Rewrite TestImageQt.test_deprecated to no rely on import order.
126 lines
3.7 KiB
Python
126 lines
3.7 KiB
Python
from PIL import Image
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from .helper import PillowTestCase
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class TestPickle(PillowTestCase):
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def helper_pickle_file(self, pickle, protocol=0, mode=None):
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# Arrange
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im = Image.open("Tests/images/hopper.jpg")
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filename = self.tempfile("temp.pkl")
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if mode:
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im = im.convert(mode)
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# Act
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with open(filename, "wb") as f:
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pickle.dump(im, f, protocol)
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with open(filename, "rb") as f:
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loaded_im = pickle.load(f)
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# Assert
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self.assertEqual(im, loaded_im)
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def helper_pickle_string(
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self, pickle, protocol=0, test_file="Tests/images/hopper.jpg", mode=None
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):
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im = Image.open(test_file)
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if mode:
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im = im.convert(mode)
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# Act
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dumped_string = pickle.dumps(im, protocol)
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loaded_im = pickle.loads(dumped_string)
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# Assert
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self.assertEqual(im, loaded_im)
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def test_pickle_image(self):
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# Arrange
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import pickle
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# Act / Assert
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for protocol in range(0, pickle.HIGHEST_PROTOCOL + 1):
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self.helper_pickle_string(pickle, protocol)
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self.helper_pickle_file(pickle, protocol)
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def test_cpickle_image(self):
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# Arrange
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try:
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import cPickle
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except ImportError:
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return
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# Act / Assert
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for protocol in range(0, cPickle.HIGHEST_PROTOCOL + 1):
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self.helper_pickle_string(cPickle, protocol)
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self.helper_pickle_file(cPickle, protocol)
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def test_pickle_p_mode(self):
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# Arrange
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import pickle
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# Act / Assert
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for test_file in [
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"Tests/images/test-card.png",
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"Tests/images/zero_bb.png",
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"Tests/images/zero_bb_scale2.png",
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"Tests/images/non_zero_bb.png",
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"Tests/images/non_zero_bb_scale2.png",
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"Tests/images/p_trns_single.png",
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"Tests/images/pil123p.png",
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"Tests/images/itxt_chunks.png",
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]:
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for protocol in range(0, pickle.HIGHEST_PROTOCOL + 1):
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self.helper_pickle_string(
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pickle, protocol=protocol, test_file=test_file
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)
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def test_pickle_pa_mode(self):
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# Arrange
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import pickle
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# Act / Assert
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for protocol in range(0, pickle.HIGHEST_PROTOCOL + 1):
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self.helper_pickle_string(pickle, protocol, mode="PA")
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self.helper_pickle_file(pickle, protocol, mode="PA")
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def test_pickle_l_mode(self):
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# Arrange
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import pickle
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# Act / Assert
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for protocol in range(0, pickle.HIGHEST_PROTOCOL + 1):
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self.helper_pickle_string(pickle, protocol, mode="L")
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self.helper_pickle_file(pickle, protocol, mode="L")
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def test_pickle_la_mode_with_palette(self):
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# Arrange
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import pickle
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im = Image.open("Tests/images/hopper.jpg")
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filename = self.tempfile("temp.pkl")
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im = im.convert("PA")
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# Act / Assert
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for protocol in range(0, pickle.HIGHEST_PROTOCOL + 1):
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im.mode = "LA"
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with open(filename, "wb") as f:
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pickle.dump(im, f, protocol)
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with open(filename, "rb") as f:
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loaded_im = pickle.load(f)
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im.mode = "PA"
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self.assertEqual(im, loaded_im)
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def test_cpickle_l_mode(self):
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# Arrange
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try:
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import cPickle
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except ImportError:
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return
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# Act / Assert
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for protocol in range(0, cPickle.HIGHEST_PROTOCOL + 1):
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self.helper_pickle_string(cPickle, protocol, mode="L")
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self.helper_pickle_file(cPickle, protocol, mode="L")
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