| James E. Blair | 3897a13 | 2016-12-22 18:23:42 -0800 | [diff] [blame] | 1 | # Copyright 2015 Red Hat, Inc. |
| 2 | # |
| 3 | # Licensed under the Apache License, Version 2.0 (the "License"); you may |
| 4 | # not use this file except in compliance with the License. You may obtain |
| 5 | # a copy of the License at |
| 6 | # |
| 7 | # http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | # |
| 9 | # Unless required by applicable law or agreed to in writing, software |
| 10 | # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| 11 | # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| 12 | # License for the specific language governing permissions and limitations |
| 13 | # under the License. |
| 14 | |
| 15 | |
| 16 | import time |
| 17 | |
| 18 | import zuul.zk |
| 19 | import zuul.nodepool |
| 20 | from zuul import model |
| 21 | |
| 22 | from tests.base import BaseTestCase, ChrootedKazooFixture, FakeNodepool |
| 23 | |
| 24 | |
| 25 | class TestNodepool(BaseTestCase): |
| 26 | # Tests the Nodepool interface class using a fake nodepool and |
| 27 | # scheduler. |
| 28 | |
| 29 | def setUp(self): |
| 30 | super(BaseTestCase, self).setUp() |
| 31 | |
| 32 | self.zk_chroot_fixture = self.useFixture(ChrootedKazooFixture()) |
| 33 | self.zk_config = zuul.zk.ZooKeeperConnectionConfig( |
| 34 | self.zk_chroot_fixture.zookeeper_host, |
| 35 | self.zk_chroot_fixture.zookeeper_port, |
| 36 | self.zk_chroot_fixture.zookeeper_chroot) |
| 37 | |
| 38 | self.zk = zuul.zk.ZooKeeper() |
| 39 | self.zk.connect([self.zk_config]) |
| 40 | |
| 41 | self.provisioned_requests = [] |
| 42 | # This class implements the scheduler methods zuul.nodepool |
| 43 | # needs, so we pass 'self' as the scheduler. |
| 44 | self.nodepool = zuul.nodepool.Nodepool(self) |
| 45 | |
| 46 | self.fake_nodepool = FakeNodepool(self.zk_config.host, |
| 47 | self.zk_config.port, |
| 48 | self.zk_config.chroot) |
| 49 | |
| 50 | def waitForRequests(self): |
| 51 | # Wait until all requests are complete. |
| 52 | while self.nodepool.requests: |
| 53 | time.sleep(0.1) |
| 54 | |
| 55 | def onNodesProvisioned(self, request): |
| 56 | # This is a scheduler method that the nodepool class calls |
| 57 | # back when a request is provisioned. |
| 58 | self.provisioned_requests.append(request) |
| 59 | |
| 60 | def test_node_request(self): |
| 61 | # Test a simple node request |
| 62 | |
| 63 | nodeset = model.NodeSet() |
| 64 | nodeset.addNode(model.Node('controller', 'ubuntu-xenial')) |
| 65 | nodeset.addNode(model.Node('compute', 'ubuntu-xenial')) |
| 66 | job = model.Job('testjob') |
| 67 | job.nodeset = nodeset |
| 68 | request = self.nodepool.requestNodes(None, job) |
| 69 | self.waitForRequests() |
| 70 | self.assertEqual(len(self.provisioned_requests), 1) |
| 71 | self.assertEqual(request.state, 'fulfilled') |
| James E. Blair | 15be0e1 | 2017-01-03 13:45:20 -0800 | [diff] [blame] | 72 | |
| 73 | def test_node_request_disconnect(self): |
| 74 | # Test that node requests are re-submitted after disconnect |
| 75 | |
| 76 | nodeset = model.NodeSet() |
| 77 | nodeset.addNode(model.Node('controller', 'ubuntu-xenial')) |
| 78 | nodeset.addNode(model.Node('compute', 'ubuntu-xenial')) |
| 79 | job = model.Job('testjob') |
| 80 | job.nodeset = nodeset |
| 81 | self.fake_nodepool.paused = True |
| 82 | request = self.nodepool.requestNodes(None, job) |
| 83 | self.zk.client.stop() |
| 84 | self.zk.client.start() |
| 85 | self.fake_nodepool.paused = False |
| 86 | self.waitForRequests() |
| 87 | self.assertEqual(len(self.provisioned_requests), 1) |
| 88 | self.assertEqual(request.state, 'fulfilled') |