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# Copyright (c) 2015-2016 Western Digital Corporation or its affiliates.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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# MA 02110-1301, USA.
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#
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# Author: Chaitanya Kulkarni <chaitanya.kulkarni@hgst.com>
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#
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"""
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NVMe Read/Write Testcae:-
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1. Create data file with specific pattern outside of the device under test.
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2. Write data file on the namespace under test.
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3. Read the data from the namespace under test into different file.
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4. Compare file in #1 and #3.
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"""
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import filecmp
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from nose.tools import assert_equal
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from nvme_test_io import TestNVMeIO
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class TestNVMeReadWriteTest(TestNVMeIO):
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"""
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Represents NVMe read, write testcase.
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- Attributes:
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- start_block : starting block of to perform IO.
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- compare_file : data file to use in nvme compare command.
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- test_log_dir : directory for logs, temp files.
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"""
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def __init__(self):
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""" Pre Section for TestNVMeReadWriteTest """
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TestNVMeIO.__init__(self)
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self.start_block = 1023
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self.test_log_dir = self.log_dir + "/" + self.__class__.__name__
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self.setup_log_dir(self.__class__.__name__)
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self.write_file = self.test_log_dir + "/" + self.write_file
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self.read_file = self.test_log_dir + "/" + self.read_file
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self.create_data_file(self.write_file, self.data_size, "15")
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open(self.read_file, 'a').close()
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def __del__(self):
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""" Post Section for TestNVMeReadWriteTest """
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TestNVMeIO.__del__(self)
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def read_validate(self):
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""" Validate the data file read
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- Args:
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- None
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- Returns:
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- returns 0 on success, 1 on failure.
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"""
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return 0 if filecmp.cmp(self.read_file, self.write_file) else 1
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def test_nvme_write(self):
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""" Testcaes main """
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assert_equal(self.nvme_write(), 0)
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assert_equal(self.nvme_read(), 0)
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assert_equal(self.read_validate(), 0)
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