# Copyright (c) 2014 Christian Schwede # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or # implied. # See the License for the specific language governing permissions and # limitations under the License. import os import tempfile import unittest import swift.cli.ringbuilder from swift.common.ring import RingBuilder class TestCommands(unittest.TestCase): def __init__(self, *args, **kwargs): super(TestCommands, self).__init__(*args, **kwargs) # List of search values for various actions # These should all match the first device in the sample ring # (see below) but not the second device self.search_values = ["d0", "/sda1", "r0", "z0", "z0-127.0.0.1", "127.0.0.1", "z0:6000", ":6000", "R127.0.0.1", "127.0.0.1R127.0.0.1", "R:6000", "_some meta data"] tmpf = tempfile.NamedTemporaryFile() self.tmpfile = tmpf.name def tearDown(self): try: os.remove(self.tmpfile) except OSError: pass def create_sample_ring(self): """ Create a sample ring with two devices At least two devices are needed to test removing a device, since removing the last device of a ring is not allowed """ # Ensure there is no existing test builder file because # create_sample_ring() might be used more than once in a single test try: os.remove(self.tmpfile) except OSError: pass ring = RingBuilder(6, 3, 1) ring.add_dev({'weight': 100.0, 'region': 0, 'zone': 0, 'ip': '127.0.0.1', 'port': 6000, 'device': 'sda1', 'meta': 'some meta data', }) ring.add_dev({'weight': 100.0, 'region': 1, 'zone': 1, 'ip': '127.0.0.2', 'port': 6001, 'device': 'sda2' }) ring.save(self.tmpfile) def test_create_ring(self): argv = ["", self.tmpfile, "create", "6", "3.14159265359", "1"] self.assertRaises(SystemExit, swift.cli.ringbuilder.main, argv) ring = RingBuilder.load(self.tmpfile) self.assertEqual(ring.part_power, 6) self.assertEqual(ring.replicas, 3.14159265359) self.assertEqual(ring.min_part_hours, 1) def test_add_device(self): self.create_sample_ring() argv = ["", self.tmpfile, "add", "r2z3-127.0.0.1:6000/sda3_some meta data", "3.14159265359"] self.assertRaises(SystemExit, swift.cli.ringbuilder.main, argv) # Check that device was created with given data ring = RingBuilder.load(self.tmpfile) dev = [d for d in ring.devs if d['id'] == 2][0] self.assertEqual(dev['region'], 2) self.assertEqual(dev['zone'], 3) self.assertEqual(dev['ip'], '127.0.0.1') self.assertEqual(dev['port'], 6000) self.assertEqual(dev['device'], 'sda3') self.assertEqual(dev['weight'], 3.14159265359) self.assertEqual(dev['replication_ip'], '127.0.0.1') self.assertEqual(dev['replication_port'], 6000) self.assertEqual(dev['meta'], 'some meta data') # Final check, rebalance and check ring is ok ring.rebalance() self.assertTrue(ring.validate()) def test_remove_device(self): for search_value in self.search_values: self.create_sample_ring() argv = ["", self.tmpfile, "remove", search_value] self.assertRaises(SystemExit, swift.cli.ringbuilder.main, argv) ring = RingBuilder.load(self.tmpfile) # Check that weight was set to 0 dev = [d for d in ring.devs if d['id'] == 0][0] self.assertEqual(dev['weight'], 0) # Check that device is in list of devices to be removed dev = [d for d in ring._remove_devs if d['id'] == 0][0] self.assertEqual(dev['region'], 0) self.assertEqual(dev['zone'], 0) self.assertEqual(dev['ip'], '127.0.0.1') self.assertEqual(dev['port'], 6000) self.assertEqual(dev['device'], 'sda1') self.assertEqual(dev['weight'], 0) self.assertEqual(dev['replication_ip'], '127.0.0.1') self.assertEqual(dev['replication_port'], 6000) self.assertEqual(dev['meta'], 'some meta data') # Check that second device in ring is not affected dev = [d for d in ring.devs if d['id'] == 1][0] self.assertEqual(dev['weight'], 100) self.assertFalse([d for d in ring._remove_devs if d['id'] == 1]) # Final check, rebalance and check ring is ok ring.rebalance() self.assertTrue(ring.validate()) def test_set_weight(self): for search_value in self.search_values: self.create_sample_ring() argv = ["", self.tmpfile, "set_weight", search_value, "3.14159265359"] self.assertRaises(SystemExit, swift.cli.ringbuilder.main, argv) ring = RingBuilder.load(self.tmpfile) # Check that weight was changed dev = [d for d in ring.devs if d['id'] == 0][0] self.assertEqual(dev['weight'], 3.14159265359) # Check that second device in ring is not affected dev = [d for d in ring.devs if d['id'] == 1][0] self.assertEqual(dev['weight'], 100) # Final check, rebalance and check ring is ok ring.rebalance() self.assertTrue(ring.validate()) def test_set_info(self): for search_value in self.search_values: self.create_sample_ring() argv = ["", self.tmpfile, "set_info", search_value, "127.0.1.1:8000/sda1_other meta data"] self.assertRaises(SystemExit, swift.cli.ringbuilder.main, argv) # Check that device was created with given data ring = RingBuilder.load(self.tmpfile) dev = [d for d in ring.devs if d['id'] == 0][0] self.assertEqual(dev['ip'], '127.0.1.1') self.assertEqual(dev['port'], 8000) self.assertEqual(dev['device'], 'sda1') self.assertEqual(dev['meta'], 'other meta data') # Check that second device in ring is not affected dev = [d for d in ring.devs if d['id'] == 1][0] self.assertEqual(dev['ip'], '127.0.0.2') self.assertEqual(dev['port'], 6001) self.assertEqual(dev['device'], 'sda2') self.assertEqual(dev['meta'], '') # Final check, rebalance and check ring is ok ring.rebalance() self.assertTrue(ring.validate()) def test_set_min_part_hours(self): self.create_sample_ring() argv = ["", self.tmpfile, "set_min_part_hours", "24"] self.assertRaises(SystemExit, swift.cli.ringbuilder.main, argv) ring = RingBuilder.load(self.tmpfile) self.assertEqual(ring.min_part_hours, 24) def test_set_replicas(self): self.create_sample_ring() argv = ["", self.tmpfile, "set_replicas", "3.14159265359"] self.assertRaises(SystemExit, swift.cli.ringbuilder.main, argv) ring = RingBuilder.load(self.tmpfile) self.assertEqual(ring.replicas, 3.14159265359) if __name__ == '__main__': unittest.main()