root / test / py / ganeti.block.drbd_unittest.py @ 74db37c0
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#!/usr/bin/python
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#
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# Copyright (C) 2006, 2007, 2010, 2012, 2013 Google Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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# 02110-1301, USA.
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"""Script for unittesting the drbd module"""
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import os |
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from ganeti import constants |
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from ganeti import errors |
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from ganeti.block import drbd |
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from ganeti.block import drbd_info |
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from ganeti.block import drbd_cmdgen |
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import testutils |
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class TestDRBD8(testutils.GanetiTestCase): |
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def testGetVersion(self): |
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data = [ |
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["version: 8.0.12 (api:76/proto:86-91)"],
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["version: 8.2.7 (api:88/proto:0-100)"],
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["version: 8.3.7.49 (api:188/proto:13-191)"],
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] |
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result = [ |
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{
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"k_major": 8, |
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"k_minor": 0, |
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"k_point": 12, |
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"api": 76, |
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"proto": 86, |
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"proto2": "91", |
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}, |
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{
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"k_major": 8, |
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"k_minor": 2, |
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"k_point": 7, |
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"api": 88, |
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"proto": 0, |
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"proto2": "100", |
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}, |
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{
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"k_major": 8, |
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"k_minor": 3, |
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"k_point": 7, |
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"api": 188, |
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"proto": 13, |
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"proto2": "191", |
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} |
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] |
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for d, r in zip(data, result): |
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info = drbd.DRBD8Info.CreateFromLines(d) |
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self.assertEqual(info.GetVersion(), r)
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class TestDRBD8Runner(testutils.GanetiTestCase): |
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"""Testing case for drbd.DRBD8"""
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@staticmethod
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def _has_disk(data, dname, mname): |
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"""Check local disk corectness"""
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retval = ( |
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"local_dev" in data and |
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data["local_dev"] == dname and |
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"meta_dev" in data and |
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data["meta_dev"] == mname and |
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"meta_index" in data and |
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data["meta_index"] == 0 |
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) |
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return retval
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@staticmethod
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def _has_net(data, local, remote): |
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"""Check network connection parameters"""
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retval = ( |
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"local_addr" in data and |
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data["local_addr"] == local and |
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"remote_addr" in data and |
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data["remote_addr"] == remote
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) |
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return retval
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def testParser83Creation(self): |
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"""Test drbdsetup show parser creation"""
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drbd_info.DRBD83ShowInfo._GetShowParser() |
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def testParser84Creation(self): |
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"""Test drbdsetup show parser creation"""
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drbd_info.DRBD84ShowInfo._GetShowParser() |
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def testParser80(self): |
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"""Test drbdsetup show parser for disk and network version 8.0"""
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data = testutils.ReadTestData("bdev-drbd-8.0.txt")
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result = drbd_info.DRBD83ShowInfo.GetDevInfo(data) |
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self.failUnless(self._has_disk(result, "/dev/xenvg/test.data", |
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"/dev/xenvg/test.meta"),
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"Wrong local disk info")
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self.failUnless(self._has_net(result, ("192.0.2.1", 11000), |
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("192.0.2.2", 11000)), |
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"Wrong network info (8.0.x)")
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def testParser83(self): |
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"""Test drbdsetup show parser for disk and network version 8.3"""
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data = testutils.ReadTestData("bdev-drbd-8.3.txt")
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result = drbd_info.DRBD83ShowInfo.GetDevInfo(data) |
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self.failUnless(self._has_disk(result, "/dev/xenvg/test.data", |
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"/dev/xenvg/test.meta"),
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"Wrong local disk info")
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self.failUnless(self._has_net(result, ("192.0.2.1", 11000), |
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("192.0.2.2", 11000)), |
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"Wrong network info (8.3.x)")
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def testParser84(self): |
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"""Test drbdsetup show parser for disk and network version 8.4"""
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data = testutils.ReadTestData("bdev-drbd-8.4.txt")
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result = drbd_info.DRBD84ShowInfo.GetDevInfo(data) |
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self.failUnless(self._has_disk(result, "/dev/xenvg/test.data", |
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"/dev/xenvg/test.meta"),
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"Wrong local disk info")
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self.failUnless(self._has_net(result, ("192.0.2.1", 11000), |
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("192.0.2.2", 11000)), |
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"Wrong network info (8.4.x)")
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def testParserNetIP4(self): |
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"""Test drbdsetup show parser for IPv4 network"""
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data = testutils.ReadTestData("bdev-drbd-net-ip4.txt")
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result = drbd_info.DRBD83ShowInfo.GetDevInfo(data) |
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self.failUnless(("local_dev" not in result and |
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"meta_dev" not in result and |
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"meta_index" not in result), |
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"Should not find local disk info")
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self.failUnless(self._has_net(result, ("192.0.2.1", 11002), |
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("192.0.2.2", 11002)), |
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"Wrong network info (IPv4)")
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def testParserNetIP6(self): |
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"""Test drbdsetup show parser for IPv6 network"""
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data = testutils.ReadTestData("bdev-drbd-net-ip6.txt")
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result = drbd_info.DRBD83ShowInfo.GetDevInfo(data) |
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self.failUnless(("local_dev" not in result and |
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"meta_dev" not in result and |
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"meta_index" not in result), |
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"Should not find local disk info")
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self.failUnless(self._has_net(result, ("2001:db8:65::1", 11048), |
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("2001:db8:66::1", 11048)), |
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"Wrong network info (IPv6)")
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def testParserDisk(self): |
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"""Test drbdsetup show parser for disk"""
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data = testutils.ReadTestData("bdev-drbd-disk.txt")
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result = drbd_info.DRBD83ShowInfo.GetDevInfo(data) |
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self.failUnless(self._has_disk(result, "/dev/xenvg/test.data", |
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"/dev/xenvg/test.meta"),
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"Wrong local disk info")
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self.failUnless(("local_addr" not in result and |
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"remote_addr" not in result), |
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"Should not find network info")
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def testBarriersOptions(self): |
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"""Test class method that generates drbdsetup options for disk barriers"""
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# Tests that should fail because of wrong version/options combinations
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should_fail = [ |
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(8, 0, 12, "bfd", True), |
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(8, 0, 12, "fd", False), |
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(8, 0, 12, "b", True), |
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(8, 2, 7, "bfd", True), |
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(8, 2, 7, "b", True) |
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] |
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for vmaj, vmin, vrel, opts, meta in should_fail: |
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self.assertRaises(errors.BlockDeviceError,
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drbd_cmdgen.DRBD83CmdGenerator._ComputeDiskBarrierArgs, |
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vmaj, vmin, vrel, opts, meta) |
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# get the valid options from the frozenset(frozenset()) in constants.
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valid_options = [list(x)[0] for x in constants.DRBD_VALID_BARRIER_OPT] |
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# Versions that do not support anything
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for vmaj, vmin, vrel in ((8, 0, 0), (8, 0, 11), (8, 2, 6)): |
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for opts in valid_options: |
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self.assertRaises(
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errors.BlockDeviceError, |
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drbd_cmdgen.DRBD83CmdGenerator._ComputeDiskBarrierArgs, |
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vmaj, vmin, vrel, opts, True)
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# Versions with partial support (testing only options that are supported)
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tests = [ |
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(8, 0, 12, "n", False, []), |
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(8, 0, 12, "n", True, ["--no-md-flushes"]), |
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(8, 2, 7, "n", False, []), |
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(8, 2, 7, "fd", False, ["--no-disk-flushes", "--no-disk-drain"]), |
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(8, 0, 12, "n", True, ["--no-md-flushes"]), |
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] |
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# Versions that support everything
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for vmaj, vmin, vrel in ((8, 3, 0), (8, 3, 12)): |
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tests.append((vmaj, vmin, vrel, "bfd", True, |
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["--no-disk-barrier", "--no-disk-drain", |
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"--no-disk-flushes", "--no-md-flushes"])) |
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tests.append((vmaj, vmin, vrel, "n", False, [])) |
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tests.append((vmaj, vmin, vrel, "b", True, |
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["--no-disk-barrier", "--no-md-flushes"])) |
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tests.append((vmaj, vmin, vrel, "fd", False, |
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["--no-disk-flushes", "--no-disk-drain"])) |
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tests.append((vmaj, vmin, vrel, "n", True, ["--no-md-flushes"])) |
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# Test execution
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for test in tests: |
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vmaj, vmin, vrel, disabled_barriers, disable_meta_flush, expected = test |
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args = \ |
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drbd_cmdgen.DRBD83CmdGenerator._ComputeDiskBarrierArgs( |
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vmaj, vmin, vrel, |
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disabled_barriers, |
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disable_meta_flush) |
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self.failUnless(set(args) == set(expected), |
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"For test %s, got wrong results %s" % (test, args))
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# Unsupported or invalid versions
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for vmaj, vmin, vrel in ((0, 7, 25), (9, 0, 0), (7, 0, 0), (8, 4, 0)): |
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self.assertRaises(errors.BlockDeviceError,
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drbd_cmdgen.DRBD83CmdGenerator._ComputeDiskBarrierArgs, |
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vmaj, vmin, vrel, "n", True) |
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# Invalid options
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for option in ("", "c", "whatever", "nbdfc", "nf"): |
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self.assertRaises(errors.BlockDeviceError,
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drbd_cmdgen.DRBD83CmdGenerator._ComputeDiskBarrierArgs, |
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8, 3, 11, option, True) |
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class TestDRBD8Status(testutils.GanetiTestCase): |
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"""Testing case for DRBD8 /proc status"""
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def setUp(self): |
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"""Read in txt data"""
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testutils.GanetiTestCase.setUp(self)
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proc_data = testutils.TestDataFilename("proc_drbd8.txt")
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proc80e_data = testutils.TestDataFilename("proc_drbd80-emptyline.txt")
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proc83_data = testutils.TestDataFilename("proc_drbd83.txt")
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proc83_sync_data = testutils.TestDataFilename("proc_drbd83_sync.txt")
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proc83_sync_krnl_data = \ |
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testutils.TestDataFilename("proc_drbd83_sync_krnl2.6.39.txt")
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proc84_data = testutils.TestDataFilename("proc_drbd84.txt")
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proc84_sync_data = testutils.TestDataFilename("proc_drbd84_sync.txt")
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self.proc80ev_data = \
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testutils.TestDataFilename("proc_drbd80-emptyversion.txt")
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self.drbd_info = drbd.DRBD8Info.CreateFromFile(filename=proc_data)
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self.drbd_info80e = drbd.DRBD8Info.CreateFromFile(filename=proc80e_data)
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self.drbd_info83 = drbd.DRBD8Info.CreateFromFile(filename=proc83_data)
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self.drbd_info83_sync = \
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drbd.DRBD8Info.CreateFromFile(filename=proc83_sync_data) |
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self.drbd_info83_sync_krnl = \
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drbd.DRBD8Info.CreateFromFile(filename=proc83_sync_krnl_data) |
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self.drbd_info84 = drbd.DRBD8Info.CreateFromFile(filename=proc84_data)
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self.drbd_info84_sync = \
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drbd.DRBD8Info.CreateFromFile(filename=proc84_sync_data) |
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def testIOErrors(self): |
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"""Test handling of errors while reading the proc file."""
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temp_file = self._CreateTempFile()
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os.unlink(temp_file) |
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self.failUnlessRaises(errors.BlockDeviceError,
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drbd.DRBD8Info.CreateFromFile, filename=temp_file) |
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def testHelper(self): |
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"""Test reading usermode_helper in /sys."""
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sys_drbd_helper = testutils.TestDataFilename("sys_drbd_usermode_helper.txt")
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drbd_helper = drbd.DRBD8.GetUsermodeHelper(filename=sys_drbd_helper) |
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self.failUnlessEqual(drbd_helper, "/bin/true") |
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def testHelperIOErrors(self): |
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"""Test handling of errors while reading usermode_helper in /sys."""
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temp_file = self._CreateTempFile()
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os.unlink(temp_file) |
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self.failUnlessRaises(errors.BlockDeviceError,
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drbd.DRBD8.GetUsermodeHelper, filename=temp_file) |
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def testMinorNotFound(self): |
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"""Test not-found-minor in /proc"""
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self.failUnless(not self.drbd_info.HasMinorStatus(9)) |
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self.failUnless(not self.drbd_info83.HasMinorStatus(9)) |
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self.failUnless(not self.drbd_info80e.HasMinorStatus(3)) |
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def testLineNotMatch(self): |
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"""Test wrong line passed to drbd_info.DRBD8Status"""
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self.assertRaises(errors.BlockDeviceError, drbd_info.DRBD8Status, "foo") |
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def testMinor0(self): |
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"""Test connected, primary device"""
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for info in [self.drbd_info, self.drbd_info83, self.drbd_info84]: |
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stats = info.GetMinorStatus(0)
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self.failUnless(stats.is_in_use)
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self.failUnless(stats.is_connected and stats.is_primary and |
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stats.peer_secondary and stats.is_disk_uptodate)
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def testMinor1(self): |
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"""Test connected, secondary device"""
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for info in [self.drbd_info, self.drbd_info83, self.drbd_info84]: |
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stats = info.GetMinorStatus(1)
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self.failUnless(stats.is_in_use)
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self.failUnless(stats.is_connected and stats.is_secondary and |
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stats.peer_primary and stats.is_disk_uptodate)
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def testMinor2(self): |
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"""Test unconfigured device"""
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for info in [self.drbd_info, self.drbd_info83, |
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self.drbd_info80e, self.drbd_info84]: |
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stats = info.GetMinorStatus(2)
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self.failIf(stats.is_in_use)
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def testMinor4(self): |
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"""Test WFconn device"""
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for info in [self.drbd_info, self.drbd_info83, self.drbd_info84]: |
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stats = info.GetMinorStatus(4)
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self.failUnless(stats.is_in_use)
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self.failUnless(stats.is_wfconn and stats.is_primary and |
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stats.rrole == "Unknown" and |
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stats.is_disk_uptodate) |
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def testMinor6(self): |
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"""Test diskless device"""
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for info in [self.drbd_info, self.drbd_info83, self.drbd_info84]: |
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stats = info.GetMinorStatus(6)
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self.failUnless(stats.is_in_use)
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self.failUnless(stats.is_connected and stats.is_secondary and |
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stats.peer_primary and stats.is_diskless)
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def testMinor8(self): |
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"""Test standalone device"""
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for info in [self.drbd_info, self.drbd_info83, self.drbd_info84]: |
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stats = info.GetMinorStatus(8)
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self.failUnless(stats.is_in_use)
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self.failUnless(stats.is_standalone and |
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stats.rrole == "Unknown" and |
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stats.is_disk_uptodate) |
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def testDRBD83SyncFine(self): |
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stats = self.drbd_info83_sync.GetMinorStatus(3) |
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self.failUnless(stats.is_in_resync)
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self.assertAlmostEqual(stats.sync_percent, 34.9) |
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def testDRBD83SyncBroken(self): |
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stats = self.drbd_info83_sync_krnl.GetMinorStatus(3) |
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self.failUnless(stats.is_in_resync)
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self.assertAlmostEqual(stats.sync_percent, 2.4) |
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def testDRBD84Sync(self): |
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stats = self.drbd_info84_sync.GetMinorStatus(5) |
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self.failUnless(stats.is_in_resync)
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self.assertAlmostEqual(stats.sync_percent, 68.5) |
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|
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def testDRBDEmptyVersion(self): |
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self.assertRaises(errors.BlockDeviceError,
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drbd.DRBD8Info.CreateFromFile, |
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filename=self.proc80ev_data)
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class TestDRBD8Construction(testutils.GanetiTestCase): |
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def setUp(self): |
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"""Read in txt data"""
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testutils.GanetiTestCase.setUp(self)
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self.proc80_info = \
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drbd_info.DRBD8Info.CreateFromFile( |
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filename=testutils.TestDataFilename("proc_drbd8.txt"))
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self.proc83_info = \
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drbd_info.DRBD8Info.CreateFromFile( |
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filename=testutils.TestDataFilename("proc_drbd83.txt"))
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self.proc84_info = \
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drbd_info.DRBD8Info.CreateFromFile( |
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filename=testutils.TestDataFilename("proc_drbd84.txt"))
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self.test_unique_id = ("hosta.com", 123, "host2.com", 123, 0, "secret") |
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@testutils.patch_object(drbd_info.DRBD8Info, "CreateFromFile") |
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def testConstructionWith80Data(self, mock_create_from_file): |
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mock_create_from_file.return_value = self.proc80_info
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inst = drbd.DRBD8(self.test_unique_id, [], 123, {}) |
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self.assertEqual(inst._show_info_cls, drbd_info.DRBD83ShowInfo)
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self.assertTrue(isinstance(inst._cmd_gen, drbd_cmdgen.DRBD83CmdGenerator)) |
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|
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@testutils.patch_object(drbd_info.DRBD8Info, "CreateFromFile") |
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def testConstructionWith83Data(self, mock_create_from_file): |
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mock_create_from_file.return_value = self.proc83_info
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inst = drbd.DRBD8(self.test_unique_id, [], 123, {}) |
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self.assertEqual(inst._show_info_cls, drbd_info.DRBD83ShowInfo)
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self.assertTrue(isinstance(inst._cmd_gen, drbd_cmdgen.DRBD83CmdGenerator)) |
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|
| 410 |
@testutils.patch_object(drbd_info.DRBD8Info, "CreateFromFile") |
| 411 |
def testConstructionWith84Data(self, mock_create_from_file): |
| 412 |
mock_create_from_file.return_value = self.proc84_info
|
| 413 |
|
| 414 |
inst = drbd.DRBD8(self.test_unique_id, [], 123, {}) |
| 415 |
self.assertEqual(inst._show_info_cls, drbd_info.DRBD84ShowInfo)
|
| 416 |
# FIXME: add assertion for right class here!
|
| 417 |
self.assertEqual(inst._cmd_gen, None) |
| 418 |
|
| 419 |
|
| 420 |
if __name__ == "__main__": |
| 421 |
testutils.GanetiTestProgram() |