33 lines
879 B
Python
33 lines
879 B
Python
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import numpy as np
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import skimage.graph.spath as spath
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from skimage._shared.testing import assert_equal, assert_array_equal
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def test_basic():
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x = np.array([[1, 1, 3],
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[0, 2, 0],
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[4, 3, 1]])
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path, cost = spath.shortest_path(x)
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assert_array_equal(path, [0, 0, 1])
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assert_equal(cost, 1)
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def test_reach():
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x = np.array([[1, 1, 3],
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[0, 2, 0],
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[4, 3, 1]])
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path, cost = spath.shortest_path(x, reach=2)
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assert_array_equal(path, [0, 0, 2])
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assert_equal(cost, 0)
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def test_non_square():
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x = np.array([[1, 1, 1, 1, 5, 5, 5],
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[5, 0, 0, 5, 9, 1, 1],
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[0, 5, 1, 0, 5, 5, 0],
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[6, 1, 1, 5, 0, 0, 1]])
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path, cost = spath.shortest_path(x, reach=2)
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assert_array_equal(path, [2, 1, 1, 2, 3, 3, 2])
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assert_equal(cost, 0)
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