File size: 2,258 Bytes
e4b9a7b | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 | # Copyright 2020 MONAI Consortium
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# http://www.apache.org/licenses/LICENSE-2.0
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import os
import tempfile
import unittest
import nibabel as nib
import numpy as np
from parameterized import parameterized
from monai.data import CacheDataset
from monai.transforms import Compose, LoadNiftid
TEST_CASE_1 = [0, 100, Compose([LoadNiftid(keys=["image", "label", "extra"])])]
TEST_CASE_2 = [4, 100, Compose([LoadNiftid(keys=["image", "label", "extra"])])]
TEST_CASE_3 = [4, 100, None]
class TestCacheDatasetParallel(unittest.TestCase):
@parameterized.expand([TEST_CASE_1, TEST_CASE_2, TEST_CASE_3])
def test_shape(self, num_workers, dataset_size, transform):
test_image = nib.Nifti1Image(np.random.randint(0, 2, size=[128, 128, 128]), np.eye(4))
with tempfile.TemporaryDirectory() as tempdir:
nib.save(test_image, os.path.join(tempdir, "test_image1.nii.gz"))
nib.save(test_image, os.path.join(tempdir, "test_label1.nii.gz"))
nib.save(test_image, os.path.join(tempdir, "test_extra1.nii.gz"))
test_data = [
{
"image": os.path.join(tempdir, "test_image1.nii.gz"),
"label": os.path.join(tempdir, "test_label1.nii.gz"),
"extra": os.path.join(tempdir, "test_extra1.nii.gz"),
}
] * dataset_size
dataset = CacheDataset(
data=test_data,
transform=transform,
cache_rate=1,
num_workers=num_workers,
)
self.assertEqual(len(dataset._cache), dataset.cache_num)
for i in range(dataset.cache_num):
self.assertIsNotNone(dataset._cache[i])
if __name__ == "__main__":
unittest.main()
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