Add a parser for 'multipath -d' output.

We need to find out about multipath topology from /sbin/multipath, which
unfortunately needs some parsing - it's fairly easy, though.

1 files changed, 29 insertions, 0 deletions

diff --git a/tests/storage/devicelibs/mpath.py b/tests/storage/devicelibs/mpath.py
new file mode 100644
index 000000000..8210b0b3b
--- /dev/null
+++ b/tests/storage/devicelibs/mpath.py
@@ -0,0 +1,29 @@
+import baseclass
+import unittest
+import storage.devicelibs.mpath as mpath
+
+class MPathTestCase(baseclass.DevicelibsTestCase):
+    def testMPath(self):
+        ##
+        ## parseMultipathOutput
+        ## 
+        output="""\
+create: mpathb (1ATA     ST3120026AS                                         5M) undef ATA,ST3120026AS
+size=112G features='0' hwhandler='0' wp=undef
+`-+- policy='round-robin 0' prio=1 status=undef
+  `- 2:0:0:0 sda 8:0  undef ready running
+create: mpatha (36006016092d21800703762872c60db11) undef DGC,RAID 5
+size=10G features='1 queue_if_no_path' hwhandler='1 emc' wp=undef
+`-+- policy='round-robin 0' prio=2 status=undef
+  |- 6:0:0:0 sdb 8:16 undef ready running
+  `- 7:0:0:0 sdc 8:32 undef ready running
+"""
+        topology = mpath.parseMultipathOutput(output)
+        expected = {'mpatha':['sdb','sdc'], 'mpathb':['sda']}
+        self.assertEqual(topology, expected)
+
+def suite():
+    return unittest.TestLoader().loadTestsFromTestCase(MPathTestCase)
+
+if __name__ == '__main__':
+    unittest.main()