root / test / py / ganeti.client.gnt_cluster_unittest.py @ 06fb92cf
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#!/usr/bin/python
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#
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# Copyright (C) 2011 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 testing ganeti.client.gnt_cluster"""
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import unittest |
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import optparse |
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from ganeti.client import gnt_cluster |
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from ganeti import utils |
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from ganeti import compat |
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from ganeti import constants |
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import testutils |
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class TestEpoUtilities(unittest.TestCase): |
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def setUp(self): |
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self.nodes2ip = dict(("node%s" % i, "192.0.2.%s" % i) for i in range(1, 10)) |
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self.nodes = set(self.nodes2ip.keys()) |
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self.ips2node = dict((v, k) for (k, v) in self.nodes2ip.items()) |
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def _FakeAction(*args): |
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return True |
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def _FakePing(ip, port, live_port_needed=False): |
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self.assert_(live_port_needed)
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self.assertEqual(port, 0) |
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return True |
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def _FakeSleep(secs): |
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self.assert_(secs >= 0 and secs <= 5) |
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return
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def _NoopFeedback(self, text): |
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return
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def testPingFnRemoveHostsUp(self): |
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seen = set()
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def _FakeSeenPing(ip, *args, **kwargs): |
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node = self.ips2node[ip]
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self.assertFalse(node in seen) |
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seen.add(node) |
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return True |
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helper = gnt_cluster._RunWhenNodesReachableHelper(self.nodes,
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self._FakeAction,
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self.nodes2ip, 0, |
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self._NoopFeedback,
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_ping_fn=_FakeSeenPing, |
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_sleep_fn=self._FakeSleep)
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nodes_len = len(self.nodes) |
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for (num, _) in enumerate(self.nodes): |
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helper.Wait(5)
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if num < nodes_len - 1: |
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self.assertRaises(utils.RetryAgain, helper)
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else:
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helper() |
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self.assertEqual(seen, self.nodes) |
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self.assertFalse(helper.down)
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self.assertEqual(helper.up, self.nodes) |
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def testActionReturnFalseSetsHelperFalse(self): |
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called = False
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def _FalseAction(*args): |
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return called
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helper = gnt_cluster._RunWhenNodesReachableHelper(self.nodes, _FalseAction,
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self.nodes2ip, 0, |
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self._NoopFeedback,
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_ping_fn=self._FakePing,
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_sleep_fn=self._FakeSleep)
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for _ in self.nodes: |
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try:
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helper() |
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except utils.RetryAgain:
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called = True
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self.assertFalse(helper.success)
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def testMaybeInstanceStartup(self): |
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instances_arg = [] |
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def _FakeInstanceStart(opts, instances, start): |
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instances_arg.append(set(instances))
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return None |
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inst_map = { |
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"inst1": set(["node1", "node2"]), |
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"inst2": set(["node1", "node3"]), |
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"inst3": set(["node2", "node1"]), |
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"inst4": set(["node2", "node1", "node3"]), |
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"inst5": set(["node4"]), |
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} |
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fn = _FakeInstanceStart |
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self.assert_(gnt_cluster._MaybeInstanceStartup(None, inst_map, set(), |
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_instance_start_fn=fn)) |
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self.assertFalse(instances_arg)
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result = gnt_cluster._MaybeInstanceStartup(None, inst_map, set(["node1"]), |
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_instance_start_fn=fn) |
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self.assert_(result)
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self.assertFalse(instances_arg)
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result = gnt_cluster._MaybeInstanceStartup(None, inst_map,
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set(["node1", "node3"]), |
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_instance_start_fn=fn) |
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self.assert_(result is None) |
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self.assertEqual(instances_arg.pop(0), set(["inst2"])) |
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self.assertFalse("inst2" in inst_map) |
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result = gnt_cluster._MaybeInstanceStartup(None, inst_map,
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set(["node1", "node3"]), |
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_instance_start_fn=fn) |
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self.assert_(result)
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self.assertFalse(instances_arg)
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result = gnt_cluster._MaybeInstanceStartup(None, inst_map,
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set(["node1", "node3", "node2"]), |
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_instance_start_fn=fn) |
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self.assertEqual(instances_arg.pop(0), set(["inst1", "inst3", "inst4"])) |
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self.assert_(result is None) |
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result = gnt_cluster._MaybeInstanceStartup(None, inst_map,
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set(["node1", "node3", "node2", |
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"node4"]),
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_instance_start_fn=fn) |
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self.assert_(result is None) |
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self.assertEqual(instances_arg.pop(0), set(["inst5"])) |
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self.assertFalse(inst_map)
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class _ClientForEpo: |
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def __init__(self, groups, nodes): |
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self._groups = groups
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self._nodes = nodes
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def QueryGroups(self, names, fields, use_locking): |
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assert not use_locking |
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assert fields == ["node_list"] |
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return self._groups |
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def QueryNodes(self, names, fields, use_locking): |
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assert not use_locking |
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assert fields == ["name", "master", "pinst_list", "sinst_list", "powered", |
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"offline"]
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return self._nodes |
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class TestEpo(unittest.TestCase): |
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_ON_EXITCODE = 253
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_OFF_EXITCODE = 254
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def _ConfirmForce(self, *args): |
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self.fail("Shouldn't need confirmation") |
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def _Confirm(self, exp_names, result, names, ltype, text): |
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self.assertEqual(names, exp_names)
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self.assertFalse(result is NotImplemented) |
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return result
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def _Off(self, exp_node_list, opts, node_list, inst_map): |
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self.assertEqual(node_list, exp_node_list)
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self.assertFalse(inst_map)
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return self._OFF_EXITCODE |
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def _Test(self, *args, **kwargs): |
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defaults = dict(cl=NotImplemented, _on_fn=NotImplemented, |
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_off_fn=NotImplemented,
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_stdout_fn=lambda *args: None, |
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_stderr_fn=lambda *args: None) |
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defaults.update(kwargs) |
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return gnt_cluster.Epo(*args, **defaults)
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def testShowAllWithGroups(self): |
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opts = optparse.Values(dict(groups=True, show_all=True)) |
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result = self._Test(opts, NotImplemented) |
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self.assertEqual(result, constants.EXIT_FAILURE)
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def testShowAllWithArgs(self): |
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opts = optparse.Values(dict(groups=False, show_all=True)) |
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result = self._Test(opts, ["a", "b", "c"]) |
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self.assertEqual(result, constants.EXIT_FAILURE)
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def testNoArgumentsNoParameters(self): |
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for (force, confirm_result) in [(True, NotImplemented), (False, False), |
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(False, True)]: |
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opts = optparse.Values(dict(groups=False, show_all=False, force=force, |
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on=False))
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client = _ClientForEpo(NotImplemented, [
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("node1.example.com", False, [], [], True, False), |
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]) |
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if force:
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confirm_fn = self._ConfirmForce
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else:
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confirm_fn = compat.partial(self._Confirm, ["node1.example.com"], |
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confirm_result) |
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off_fn = compat.partial(self._Off, ["node1.example.com"]) |
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result = self._Test(opts, [], cl=client, _off_fn=off_fn,
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_confirm_fn=confirm_fn) |
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if force or confirm_result: |
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self.assertEqual(result, self._OFF_EXITCODE) |
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else:
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self.assertEqual(result, constants.EXIT_FAILURE)
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def testPowerOn(self): |
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for master in [False, True]: |
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opts = optparse.Values(dict(groups=False, show_all=True, |
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force=True, on=True)) |
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client = _ClientForEpo(NotImplemented, [
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("node1.example.com", False, [], [], True, False), |
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("node2.example.com", False, [], [], False, False), |
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("node3.example.com", False, [], [], True, True), |
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("node4.example.com", False, [], [], None, True), |
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("node5.example.com", master, [], [], False, False), |
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]) |
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def _On(_, all_nodes, node_list, inst_map): |
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self.assertEqual(all_nodes,
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["node%s.example.com" % i for i in range(1, 6)]) |
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if master:
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self.assertEqual(node_list, ["node2.example.com"]) |
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else:
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self.assertEqual(node_list, ["node2.example.com", |
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"node5.example.com"])
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self.assertFalse(inst_map)
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return self._ON_EXITCODE |
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result = self._Test(opts, [], cl=client, _on_fn=_On,
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_confirm_fn=self._ConfirmForce)
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self.assertEqual(result, self._ON_EXITCODE) |
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def testMasterWithoutShowAll(self): |
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opts = optparse.Values(dict(groups=False, show_all=False, |
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force=True, on=False)) |
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client = _ClientForEpo(NotImplemented, [
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("node1.example.com", True, [], [], True, False), |
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]) |
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result = self._Test(opts, [], cl=client, _confirm_fn=self._ConfirmForce) |
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self.assertEqual(result, constants.EXIT_FAILURE)
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if __name__ == "__main__": |
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testutils.GanetiTestProgram() |