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import baseclass
import unittest
import storage.devicelibs.lvm as lvm
class TestLVM(baseclass.TestDevicelibs):
def testLVMStuff(self):
##
## pvcreate
##
# pass
for dev, file in self._LOOP_DEVICES:
self.assertEqual(lvm.pvcreate(dev), None)
# fail
self.assertRaises(lvm.LVMError, lvm.pvcreate, "/not/existing/device")
##
## pvresize
##
# pass
for dev, file in self._LOOP_DEVICES:
self.assertEqual(lvm.pvresize(dev, 50), None)
self.assertEqual(lvm.pvresize(dev, 100), None)
# fail
self.assertRaises(lvm.LVMError, lvm.pvresize, "/not/existing/device", 50)
##
## vgcreate
##
# pass
self.assertEqual(lvm.vgcreate("test-vg", [self._LOOP_DEV0, self._LOOP_DEV1], 4), None)
# fail
self.assertRaises(lvm.LVMError, lvm.vgcreate, "another-vg", ["/not/existing/device"], 4)
# vg already exists
self.assertRaises(lvm.LVMError, lvm.vgcreate, "test-vg", [self._LOOP_DEV0], 4)
# pe size must be power of 2
self.assertRaises(lvm.LVMError, lvm.vgcreate, "another-vg", [self._LOOP_DEV0], 5)
##
## pvremove
##
# fail
# cannot remove pv now with vg created
self.assertRaises(lvm.LVMError, lvm.pvremove, self._LOOP_DEV0)
##
## vgdeactivate
##
# pass
self.assertEqual(lvm.vgdeactivate("test-vg"), None)
# fail
self.assertRaises(lvm.LVMError, lvm.vgdeactivate, "wrong-vg-name")
##
## vgreduce
##
# pass
self.assertEqual(lvm.vgreduce("test-vg", [self._LOOP_DEV1]), None)
# fail
self.assertRaises(lvm.LVMError, lvm.vgreduce, "wrong-vg-name", [self._LOOP_DEV1])
self.assertRaises(lvm.LVMError, lvm.vgreduce, "test-vg", ["/not/existing/device"])
##
## vgactivate
##
# pass
self.assertEqual(lvm.vgactivate("test-vg"), None)
# fail
self.assertRaises(lvm.LVMError, lvm.vgactivate, "wrong-vg-name")
##
## pvinfo
##
# pass
self.assertEqual(lvm.pvinfo(self._LOOP_DEV0)["pv_name"], self._LOOP_DEV0)
# no vg
self.assertEqual(lvm.pvinfo(self._LOOP_DEV1)["pv_name"], self._LOOP_DEV1)
# fail
self.assertRaises(lvm.LVMError, lvm.pvinfo, "/not/existing/device")
##
## vginfo
##
# pass
self.assertEqual(lvm.vginfo("test-vg")["pe_size"], "4.00")
# fail
self.assertRaises(lvm.LVMError, lvm.vginfo, "wrong-vg-name")
##
## lvcreate
##
# pass
self.assertEqual(lvm.lvcreate("test-vg", "test-lv", 10), None)
# fail
self.assertRaises(lvm.LVMError, lvm.lvcreate, "wrong-vg-name", "another-lv", 10)
##
## lvdeactivate
##
# pass
self.assertEqual(lvm.lvdeactivate("test-vg", "test-lv"), None)
# fail
self.assertRaises(lvm.LVMError, lvm.lvdeactivate, "test-vg", "wrong-lv-name")
self.assertRaises(lvm.LVMError, lvm.lvdeactivate, "wrong-vg-name", "test-lv")
self.assertRaises(lvm.LVMError, lvm.lvdeactivate, "wrong-vg-name", "wrong-lv-name")
##
## lvresize
##
# pass
self.assertEqual(lvm.lvresize("test-vg", "test-lv", 60), None)
# fail
self.assertRaises(lvm.LVMError, lvm.lvresize, "test-vg", "wrong-lv-name", 80)
self.assertRaises(lvm.LVMError, lvm.lvresize, "wrong-vg-name", "test-lv", 80)
self.assertRaises(lvm.LVMError, lvm.lvresize, "wrong-vg-name", "wrong-lv-name", 80)
# changing to same size
self.assertRaises(lvm.LVMError, lvm.lvresize, "test-vg", "test-lv", 60)
##
## lvactivate
##
# pass
self.assertEqual(lvm.lvactivate("test-vg", "test-lv"), None)
# fail
self.assertRaises(lvm.LVMError, lvm.lvactivate, "test-vg", "wrong-lv-name")
self.assertRaises(lvm.LVMError, lvm.lvactivate, "wrong-vg-name", "test-lv")
self.assertRaises(lvm.LVMError, lvm.lvactivate, "wrong-vg-name", "wrong-lv-name")
##
## lvs
##
# pass
self.assertEqual(lvm.lvs("test-vg")["test-lv"]["size"], "60.00")
# fail
self.assertRaises(lvm.LVMError, lvm.lvs, "wrong-vg-name")
##
## has_lvm
##
# pass
self.assertEqual(lvm.has_lvm(), True)
# fail
#TODO
##
## lvremove
##
# pass
self.assertEqual(lvm.lvdeactivate("test-vg", "test-lv"), None) # is deactivation needed?
self.assertEqual(lvm.lvremove("test-vg", "test-lv"), None)
# fail
self.assertRaises(lvm.LVMError, lvm.lvremove, "test-vg", "wrong-lv-name")
self.assertRaises(lvm.LVMError, lvm.lvremove, "wrong-vg-name", "test-lv")
self.assertRaises(lvm.LVMError, lvm.lvremove, "wrong-vg-name", "wrong-lv-name")
# lv already removed
self.assertRaises(lvm.LVMError, lvm.lvremove, "test-vg", "test-lv")
##
## vgremove
##
# pass
self.assertEqual(lvm.vgremove("test-vg"), None)
# fail
self.assertRaises(lvm.LVMError, lvm.vgremove, "wrong-vg-name")
# vg already removed
self.assertRaises(lvm.LVMError, lvm.vgremove, "test-vg")
##
## pvremove
##
# pass
for dev, file in self._LOOP_DEVICES:
self.assertEqual(lvm.pvremove(dev), None)
# fail
self.assertRaises(lvm.LVMError, lvm.pvremove, "/not/existing/device")
# pv already removed
self.assertRaises(lvm.LVMError, lvm.pvremove, self._LOOP_DEV0)
#def testGetPossiblePhysicalExtents(self):
# pass
self.assertEqual(lvm.getPossiblePhysicalExtents(4),
filter(lambda pe: pe > 4, map(lambda power: 2**power, xrange(3, 25))))
self.assertEqual(lvm.getPossiblePhysicalExtents(100000),
filter(lambda pe: pe > 100000, map(lambda power: 2**power, xrange(3, 25))))
#def testGetMaxLVSize(self):
# pass
# why do we specify the PE ? not needed...
self.assertEqual(lvm.getMaxLVSize(4), 16*1024**2)
#def testSafeLVMName(self):
# pass
self.assertEqual(lvm.safeLvmName("/strange/lv*name5"), "strange_lvname5")
#def testClampSize(self):
# pass
self.assertEqual(lvm.clampSize(10, 4), 8L)
self.assertEqual(lvm.clampSize(10, 4, True), 12L)
#def testVGUsedSpace(self):
#TODO
pass
#def testVGFreeSpace(self):
#TODO
pass
if __name__ == "__main__":
suite = unittest.TestLoader().loadTestsFromTestCase(TestLVM)
unittest.TextTestRunner(verbosity=2).run(suite)
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