summaryrefslogtreecommitdiffstats
path: root/tests/nvme_test_io.py
diff options
context:
space:
mode:
Diffstat (limited to 'tests/nvme_test_io.py')
-rw-r--r--tests/nvme_test_io.py98
1 files changed, 98 insertions, 0 deletions
diff --git a/tests/nvme_test_io.py b/tests/nvme_test_io.py
new file mode 100644
index 0000000..bf30e0a
--- /dev/null
+++ b/tests/nvme_test_io.py
@@ -0,0 +1,98 @@
+# 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>
+#
+""" Inherit TestNVMeIO for nvme read/write operations """
+
+import os
+
+from nvme_test import TestNVMe
+
+
+class TestNVMeIO(TestNVMe):
+
+ """
+ Variable and Methods required to perform nvme read/write.
+
+ - Attributes:
+ - data_size : data size to perform IO.
+ - start_block : starting block of to perform IO.
+ - block_count : Number of blocks to use in IO.
+ - write_file : data file to use in nvme write command.
+ - read_file : data file to use in nvme read command.
+ """
+
+ def setUp(self):
+ """ Pre Section for TestNVMeIO """
+ super().setUp()
+ # common code used in various testcases.
+ self.data_size = 512
+ self.start_block = 0
+ self.block_count = 0
+ self.write_file = "write_file.txt"
+ self.read_file = "read_file.txt"
+
+ def tearDown(self):
+ """ Post Section for TestNVMeIO """
+ super().tearDown()
+
+ def create_data_file(self, pathname, data_size, pattern):
+ """ Creates data file with specific pattern
+ - Args:
+ - pathname : data file path name.
+ - data_size : total size of the data.
+ - pattern : data pattern to create file.
+ - Returns:
+ None
+ """
+ pattern_len = len(pattern)
+ data_file = open(pathname, "w")
+ for i in range(0, data_size):
+ data_file.write(pattern[i % pattern_len])
+ data_file.flush()
+ os.fsync(data_file.fileno())
+ data_file.close()
+
+ def nvme_write(self):
+ """ Wrapper for nvme write operation
+ - Args:
+ - None
+ - Returns:
+ - return code for nvme write command.
+ """
+ write_cmd = "nvme write " + self.ns1 + " --start-block=" + \
+ str(self.start_block) + " --block-count=" + \
+ str(self.block_count) + " --data-size=" + \
+ str(self.data_size) + " --data=" + self.write_file
+ return self.exec_cmd(write_cmd)
+
+ def nvme_read(self):
+ """ Wrapper for nvme read operation
+ - Args:
+ - None
+ - Returns:
+ - return code for nvme read command.
+ """
+ read_cmd = "nvme read " + self.ns1 + " --start-block=" + \
+ str(self.start_block) + " --block-count=" + \
+ str(self.block_count) + " --data-size=" + \
+ str(self.data_size) + " --data=" + self.read_file
+ print(read_cmd)
+ return self.exec_cmd(read_cmd)