pier | 7f292e7 | 2019-07-16 15:52:50 +0200 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2019-present Open Networking Foundation |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package org.onosproject.openflow.controller.impl; |
| 18 | |
| 19 | import com.google.common.collect.ImmutableSet; |
| 20 | import io.netty.channel.ChannelHandlerContext; |
| 21 | import org.junit.Before; |
| 22 | import org.junit.Test; |
| 23 | import org.onosproject.openflow.ChannelHandlerContextAdapter; |
| 24 | import org.onosproject.openflow.MockOfPortStatus; |
| 25 | import org.onosproject.openflow.OFDescStatsReplyAdapter; |
| 26 | import org.onosproject.openflow.OpenflowSwitchDriverAdapter; |
| 27 | import org.onosproject.openflow.controller.Dpid; |
| 28 | import org.projectfloodlight.openflow.protocol.OFDescStatsReply; |
| 29 | |
| 30 | import static org.easymock.EasyMock.*; |
| 31 | import static org.hamcrest.CoreMatchers.is; |
| 32 | import static org.junit.Assert.assertNotNull; |
| 33 | import static org.junit.Assert.assertThat; |
| 34 | import static org.onosproject.openflow.controller.impl.OFChannelHandler.ChannelState.ACTIVE; |
| 35 | import static org.onosproject.openflow.controller.impl.OFChannelHandler.ChannelState.WAIT_DESCRIPTION_STAT_REPLY; |
| 36 | import static org.onosproject.openflow.controller.impl.OFChannelHandler.ChannelState.WAIT_SWITCH_DRIVER_SUB_HANDSHAKE; |
| 37 | import static org.projectfloodlight.openflow.protocol.OFVersion.OF_13; |
| 38 | |
| 39 | /** |
| 40 | * Unit tests for the OpenFlow channel handler. |
| 41 | */ |
| 42 | public class OFChannelHandlerTest { |
| 43 | |
| 44 | private Controller controller; |
| 45 | private OFChannelHandler channelHandler; |
| 46 | private ChannelHandlerContext channelHandlerContext; |
| 47 | |
| 48 | @Before |
| 49 | public void setUp() { |
| 50 | controller = createMock(Controller.class); |
| 51 | channelHandler = new OFChannelHandler(controller); |
| 52 | channelHandler.ofVersion = OF_13; |
| 53 | channelHandlerContext = new ChannelHandlerContextAdapter(); |
| 54 | } |
| 55 | |
| 56 | // Normal workflow - connect |
| 57 | @Test |
| 58 | public void testActiveDpid() { |
| 59 | // Expected behavior |
| 60 | OFDescStatsReply reply = new OFDescStatsReplyAdapter(); |
| 61 | expect(controller.getOFSwitchInstance(0, reply, OF_13)).andReturn( |
| 62 | new OpenflowSwitchDriverAdapter(ImmutableSet.of(), Dpid.dpid(Dpid.uri(0)), true)); |
| 63 | replay(controller); |
| 64 | |
| 65 | try { |
| 66 | channelHandler.channelActive(channelHandlerContext); |
| 67 | channelHandler.setState(WAIT_DESCRIPTION_STAT_REPLY); |
| 68 | channelHandler.channelRead(channelHandlerContext, reply); |
| 69 | } catch (Exception e) { |
| 70 | channelHandler = null; |
| 71 | } |
| 72 | // exception should not be fired |
| 73 | assertNotNull(channelHandler); |
| 74 | assertThat(channelHandler.getStateForTesting(), is(ACTIVE)); |
| 75 | |
| 76 | // Finally verify |
| 77 | verify(controller); |
| 78 | } |
| 79 | |
| 80 | // Normal workflow - duplicate Dpid |
| 81 | @Test |
| 82 | public void testDuplicateDpid() { |
| 83 | // Expected behavior |
| 84 | OFDescStatsReply reply = new OFDescStatsReplyAdapter(); |
| 85 | expect(controller.getOFSwitchInstance(0, reply, OF_13)).andReturn(new OpenflowSwitchDriverAdapter( |
| 86 | ImmutableSet.of(Dpid.dpid(Dpid.uri(0))), Dpid.dpid(Dpid.uri(0)), true)); |
| 87 | replay(controller); |
| 88 | |
| 89 | try { |
| 90 | channelHandler.channelActive(channelHandlerContext); |
| 91 | channelHandler.setState(WAIT_DESCRIPTION_STAT_REPLY); |
| 92 | channelHandler.channelRead(channelHandlerContext, reply); |
| 93 | } catch (Exception e) { |
| 94 | channelHandler = null; |
| 95 | } |
| 96 | // exception should not be fired |
| 97 | assertNotNull(channelHandler); |
| 98 | assertThat(channelHandler.getStateForTesting(), is(WAIT_DESCRIPTION_STAT_REPLY)); |
| 99 | |
| 100 | // Finally verify |
| 101 | verify(controller); |
| 102 | } |
| 103 | |
| 104 | // Through subhandshake |
| 105 | @Test |
| 106 | public void testActiveDpidSub() { |
| 107 | // Expected behavior |
| 108 | OFDescStatsReply reply = new OFDescStatsReplyAdapter(); |
| 109 | expect(controller.getOFSwitchInstance(0, reply, OF_13)).andReturn(new OpenflowSwitchDriverAdapter( |
| 110 | ImmutableSet.of(), Dpid.dpid(Dpid.uri(0)), false)); |
| 111 | replay(controller); |
| 112 | |
| 113 | try { |
| 114 | channelHandler.channelActive(channelHandlerContext); |
| 115 | channelHandler.setState(WAIT_DESCRIPTION_STAT_REPLY); |
| 116 | channelHandler.channelRead(channelHandlerContext, reply); |
| 117 | channelHandler.channelRead(channelHandlerContext, new MockOfPortStatus()); |
| 118 | } catch (Exception e) { |
| 119 | channelHandler = null; |
| 120 | } |
| 121 | // exception should not be fired |
| 122 | assertNotNull(channelHandler); |
| 123 | assertThat(channelHandler.getStateForTesting(), is(ACTIVE)); |
| 124 | |
| 125 | // Finally verify |
| 126 | verify(controller); |
| 127 | } |
| 128 | |
| 129 | // Through subhandshake - duplicate dpid |
| 130 | @Test |
| 131 | public void testDuplicateDpidSub() { |
| 132 | // Expected behavior |
| 133 | OFDescStatsReply reply = new OFDescStatsReplyAdapter(); |
| 134 | expect(controller.getOFSwitchInstance(0, reply, OF_13)).andReturn(new OpenflowSwitchDriverAdapter( |
| 135 | ImmutableSet.of(Dpid.dpid(Dpid.uri(0))), Dpid.dpid(Dpid.uri(0)), false)); |
| 136 | replay(controller); |
| 137 | |
| 138 | try { |
| 139 | channelHandler.channelActive(channelHandlerContext); |
| 140 | channelHandler.setState(WAIT_DESCRIPTION_STAT_REPLY); |
| 141 | channelHandler.channelRead(channelHandlerContext, reply); |
| 142 | channelHandler.channelRead(channelHandlerContext, new MockOfPortStatus()); |
| 143 | } catch (Exception e) { |
| 144 | channelHandler = null; |
| 145 | } |
| 146 | // exception should not be fired |
| 147 | assertNotNull(channelHandler); |
| 148 | assertThat(channelHandler.getStateForTesting(), is(WAIT_SWITCH_DRIVER_SUB_HANDSHAKE)); |
| 149 | |
| 150 | // Finally verify |
| 151 | verify(controller); |
| 152 | } |
| 153 | |
| 154 | } |