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85 lines
3.1 KiB
85 lines
3.1 KiB
#!/usr/bin/env python
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# Copyright 2019 Huawei Technologies Co., Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# ==============================================================================
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import os
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import pytest
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import mindspore.dataset as ds
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from mindspore.mindrecord import FileWriter
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CV_FILE_NAME = "./imagenet.mindrecord"
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def create_cv_mindrecord(files_num):
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"""tutorial for cv dataset writer."""
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os.remove(CV_FILE_NAME) if os.path.exists(CV_FILE_NAME) else None
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os.remove("{}.db".format(CV_FILE_NAME)) if os.path.exists("{}.db".format(CV_FILE_NAME)) else None
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writer = FileWriter(CV_FILE_NAME, files_num)
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cv_schema_json = {"file_name": {"type": "string"}, "label": {"type": "int32"}, "data": {"type": "bytes"}}
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data = [{"file_name": "001.jpg", "label": 43, "data": bytes('0xffsafdafda', encoding='utf-8')}]
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writer.add_schema(cv_schema_json, "img_schema")
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writer.add_index(["file_name", "label"])
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writer.write_raw_data(data)
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writer.commit()
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def test_cv_lack_json():
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"""tutorial for cv minderdataset."""
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create_cv_mindrecord(1)
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columns_list = ["data", "file_name", "label"]
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num_readers = 4
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with pytest.raises(Exception) as err:
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data_set = ds.MindDataset(CV_FILE_NAME, "no_exist.json", columns_list, num_readers)
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os.remove(CV_FILE_NAME)
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os.remove("{}.db".format(CV_FILE_NAME))
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def test_cv_lack_mindrecord():
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"""tutorial for cv minderdataset."""
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columns_list = ["data", "file_name", "label"]
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num_readers = 4
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with pytest.raises(Exception, match="does not exist or permission denied"):
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data_set = ds.MindDataset("no_exist.mindrecord", columns_list, num_readers)
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def test_invalid_mindrecord():
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with open('dummy.mindrecord', 'w') as f:
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f.write('just for test')
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columns_list = ["data", "file_name", "label"]
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num_readers = 4
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with pytest.raises(Exception, match="MindRecordOp init failed"):
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data_set = ds.MindDataset('dummy.mindrecord', columns_list, num_readers)
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num_iter = 0
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for item in data_set.create_dict_iterator():
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num_iter += 1
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assert num_iter == 0
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os.remove('dummy.mindrecord')
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def test_minddataset_lack_db():
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create_cv_mindrecord(1)
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os.remove("{}.db".format(CV_FILE_NAME))
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columns_list = ["data", "file_name", "label"]
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num_readers = 4
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with pytest.raises(Exception, match="MindRecordOp init failed"):
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data_set = ds.MindDataset(CV_FILE_NAME, columns_list, num_readers)
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num_iter = 0
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for item in data_set.create_dict_iterator():
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num_iter += 1
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assert num_iter == 0
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os.remove(CV_FILE_NAME)
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