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# SPDX-License-Identifier: GPL-2.0-or-later
#
# Copyright (c) 2015-2016 Western Digital Corporation or its affiliates.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
# MA 02110-1301, USA.
#
# Author: Chaitanya Kulkarni <chaitanya.kulkarni@hgst.com>
#
"""
NVMe Write Compare Testcae:-
1. Read block of data successfully.
2. Issue write uncorrectable to block of data.
3. Attempt to read from same block; shall fail.
4. Issue a write command to first block of data.
5. Read from the same block; shall pass.
"""
from nvme_test_io import TestNVMeIO
class TestNVMeUncor(TestNVMeIO):
"""
Represents NVMe Write Uncorrecatble testcase.
- Attributes:
- start_block : starting block of to perform IO.
- test_log_dir : directory for logs, temp files.
"""
def setUp(self):
""" Constructor TestNVMeUncor """
super().setUp()
self.start_block = 1023
self.setup_log_dir(self.__class__.__name__)
self.write_file = self.test_log_dir + "/" + self.write_file
self.read_file = self.test_log_dir + "/" + self.read_file
self.create_data_file(self.write_file, self.data_size, "15")
open(self.read_file, 'a').close()
def tearDown(self):
""" Post Section for TestNVMeUncor """
super().tearDown()
def write_uncor(self):
""" Wrapper for nvme write uncorrectable
- Args:
- None
- Returns:
- return code of nvme write uncorrectable command.
"""
write_uncor_cmd = "nvme write-uncor " + self.ns1 + \
" --start-block=" + str(self.start_block) + \
" --block-count=" + str(self.block_count)
return self.exec_cmd(write_uncor_cmd)
def test_write_uncor(self):
""" Testcase main """
self.assertEqual(self.nvme_read(), 0)
self.assertEqual(self.write_uncor(), 0)
self.assertNotEqual(self.nvme_read(), 0)
self.assertEqual(self.nvme_write(), 0)
self.assertEqual(self.nvme_read(), 0)
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