Renamed diskInfo.py

Renamed diskInfo.py to disk_info.py and the associated test to
test_disk_info.  Also changed the usage in the test to reflect
the name change.

Closes-bug: #1533189

Change-Id: Ice63cf8ea6cd4fcc770f88952cf784e5d46cca5c

watcher/decision_engine/model/disk_info.py

@@ -0,0 +1,53 @@
+# -*- encoding: utf-8 -*-
+# Copyright (c) 2015 b<>com
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+class DiskInfo(object):
+    def __init__(self):
+        self.name = ""
+        self.major = 0
+        self.minor = 0
+        self.size = 0
+        self.scheduler = ""
+
+    def set_size(self, size):
+        """DiskInfo
+
+        :param size:   Size in bytes
+        """
+        self.size = size
+
+    def get_size(self):
+        return self.size
+
+    def set_scheduler(self, scheduler):
+        """DiskInfo
+
+        I/O Scheduler noop cfq deadline
+        :param scheduler:
+        :return:
+        """
+        self.scheduler = scheduler
+
+    def set_device_name(self, name):
+        """Device name
+
+        :param name:
+        """
+        self.name = name
+
+    def get_device_name(self):
+        return self.name