Adding upstream version 2.2.1.

Signed-off-by: Daniel Baumann <daniel@debian.org>

test/test-udev.py

@@ -0,0 +1,41 @@
+#!/usr/bin/python3
+import unittest
+from staslib import udev
+
+
+class Test(unittest.TestCase):
+    '''Unit tests for class Udev'''
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+
+    @classmethod
+    def tearDownClass(cls):
+        '''Release resources'''
+        udev.shutdown()
+
+    def test_get_device(self):
+        dev = udev.UDEV.get_nvme_device('null')
+        self.assertEqual(dev.device_node, '/dev/null')
+
+    def test_get_bad_device(self):
+        self.assertIsNone(udev.UDEV.get_nvme_device('bozo'))
+
+    def test_get_key_from_attr(self):
+        device = udev.UDEV.get_nvme_device('null')
+
+        devname = udev.UDEV.get_key_from_attr(device, 'uevent', 'DEVNAME=', '\n')
+        self.assertEqual(devname, 'null')
+
+        devname = udev.UDEV.get_key_from_attr(device, 'uevent', 'DEVNAME', '\n')
+        self.assertEqual(devname, 'null')
+
+        devmode = udev.UDEV.get_key_from_attr(device, 'uevent', 'DEVMODE', '\n')
+        self.assertEqual(devmode, '0666')
+
+        bogus = udev.UDEV.get_key_from_attr(device, 'bogus', 'BOGUS', '\n')
+        self.assertEqual(bogus, '')
+
+
+if __name__ == '__main__':
+    unittest.main()