80 lines
3 KiB
Python
80 lines
3 KiB
Python
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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 Compare Command Testcase:-
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1. Create a data file 1 with pattern 1515 to write.
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2. Create a data file 2 with pattern 2525 to compare with.
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3. Write a block of data pattern using data file1.
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4. Compare written block to data file 2's pattern; shall fail.
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5. Compare written block to data file1's pattern; shall pass.
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"""
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from nose.tools import assert_equal, assert_not_equal
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from nvme_test_io import TestNVMeIO
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class TestNVMeCompareCmd(TestNVMeIO):
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"""
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Represents Compare Testcase. Inherits TestNVMeIO class.
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- Attributes:
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- data_size : data size to perform IO.
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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 TestNVMeCompareCmd """
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TestNVMeIO.__init__(self)
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self.data_size = 1024
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self.start_block = 1023
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self.setup_log_dir(self.__class__.__name__)
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self.compare_file = self.test_log_dir + "/" + "compare_file.txt"
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self.write_file = self.test_log_dir + "/" + self.write_file
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self.create_data_file(self.write_file, self.data_size, "15")
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self.create_data_file(self.compare_file, self.data_size, "25")
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def __del__(self):
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""" Post Section for TestNVMeCompareCmd """
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TestNVMeIO.__del__(self)
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def nvme_compare(self, cmp_file):
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""" Wrapper for nvme compare command.
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- Args:
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- cmp_file : data file used in nvme compare command.
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- Returns:
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- return code of the nvme compare command.
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"""
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compare_cmd = "nvme compare " + self.ns1 + " --start-block=" + \
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str(self.start_block) + " --block-count=" + \
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str(self.block_count) + " --data-size=" + \
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str(self.data_size) + " --data=" + cmp_file
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return self.exec_cmd(compare_cmd)
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def test_nvme_compare(self):
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""" Testcase main """
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assert_equal(self.nvme_write(), 0)
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assert_not_equal(self.nvme_compare(self.compare_file), 0)
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assert_equal(self.nvme_compare(self.write_file), 0)
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