mirror of
https://github.com/wassname/scikit-image.git
synced 2026-06-29 01:11:56 +08:00
Tony S Yu
70 lines
1.9 KiB
Python
70 lines
1.9 KiB
Python
import os
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import numpy as np
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from numpy.testing.decorators import skipif
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from numpy.testing import assert_raises, assert_equal, assert_allclose
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from skimage import data_dir
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from skimage.io.collection import MultiImage
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try:
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from PIL import Image
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except ImportError:
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PIL_available = False
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else:
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PIL_available = True
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import six
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class TestMultiImage():
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def setUp(self):
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# This multipage TIF file was created with imagemagick:
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# convert im1.tif im2.tif -adjoin multipage.tif
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if PIL_available:
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self.img = MultiImage(os.path.join(data_dir, 'multipage.tif'))
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@skipif(not PIL_available)
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def test_len(self):
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assert len(self.img) == 2
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@skipif(not PIL_available)
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def test_getitem(self):
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num = len(self.img)
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for i in range(-num, num):
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assert type(self.img[i]) is np.ndarray
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assert_allclose(self.img[0], self.img[-num])
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# assert_raises expects a callable, hence this thin wrapper function.
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def return_img(n):
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return self.img[n]
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assert_raises(IndexError, return_img, num)
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assert_raises(IndexError, return_img, -num - 1)
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@skipif(not PIL_available)
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def test_files_property(self):
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assert isinstance(self.img.filename, six.string_types)
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def set_filename(f):
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self.img.filename = f
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assert_raises(AttributeError, set_filename, 'newfile')
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@skipif(not PIL_available)
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def test_conserve_memory_property(self):
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assert isinstance(self.img.conserve_memory, bool)
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def set_mem(val):
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self.img.conserve_memory = val
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assert_raises(AttributeError, set_mem, True)
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@skipif(not PIL_available)
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def test_concatenate(self):
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array = self.img.concatenate()
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assert_equal(array.shape, (len(self.img),) + self.img[0].shape)
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if __name__ == "__main__":
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from numpy.testing import run_module_suite
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run_module_suite()
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