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#!/usr/bin/env python |
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from torchio.data import GridSampler |
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from ...utils import TorchioTestCase |
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class TestGridSampler(TorchioTestCase): |
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"""Tests for `GridSampler`.""" |
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def test_locations(self): |
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patch_size = 5, 20, 20 |
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patch_overlap = 2, 4, 6 |
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sampler = GridSampler(self.sample, patch_size, patch_overlap) |
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fixture = [ |
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[0, 0, 0, 5, 20, 20], |
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[0, 0, 10, 5, 20, 30], |
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[3, 0, 0, 8, 20, 20], |
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[3, 0, 10, 8, 20, 30], |
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[5, 0, 0, 10, 20, 20], |
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[5, 0, 10, 10, 20, 30], |
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] |
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locations = sampler.locations.tolist() |
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self.assertEqual(locations, fixture) |
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def test_large_patch(self): |
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with self.assertRaises(ValueError): |
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GridSampler(self.sample, (5, 21, 5), (0, 2, 0)) |
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def test_large_overlap(self): |
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with self.assertRaises(ValueError): |
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GridSampler(self.sample, (5, 20, 5), (2, 4, 6)) |
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def test_odd_overlap(self): |
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with self.assertRaises(ValueError): |
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GridSampler(self.sample, (5, 20, 5), (2, 4, 3)) |
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def test_single_location(self): |
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sampler = GridSampler(self.sample, (10, 20, 30), 0) |
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fixture = [[0, 0, 0, 10, 20, 30]] |
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self.assertEqual(sampler.locations.tolist(), fixture) |
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fepegar /
torchio
