csit/suites/bgpcep/bgpuser/cases.robot

   1 *** Settings ***
   2 Documentation     Basic tests for odl-bgpcep-bgp-all feature.
   3 ...
   4 ...               Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
   5 ...
   6 ...               This program and the accompanying materials are made available under the
   7 ...               terms of the Eclipse Public License v1.0 which accompanies this distribution,
   8 ...               and is available at http://www.eclipse.org/legal/epl-v10.html
   9 ...
  10 ...
  11 ...               Brief description of what this suite should do:
  12 ...               https://wiki.opendaylight.org/view/BGP_LS_PCEP:Lithium_Feature_Tests#How_to_test_2
  13 Suite Setup       Setup_Everything
  14 Suite Teardown    Teardown_Everything
  15 Test Setup        FailFast.Fail_This_Fast_On_Previous_Error
  16 Test Teardown     FailFast.Start_Failing_Fast_If_This_Failed
  17 Library           OperatingSystem
  18 Library           SSHLibrary    prompt=]>    timeout=10s    # FIXME: The prompt should have default value from a common resource, and should be overwritable by pybot -v in scripts.
  19 Library           RequestsLibrary
  20 Library           ${CURDIR}/../../../libraries/HsfJson/hsf_json.py
  21 Variables         ${CURDIR}/../../../variables/Variables.py
  22 Variables         ${CURDIR}/../../../variables/bgpuser/variables.py    ${MININET}
  23 Resource          ${CURDIR}/../../../libraries/ConfigViaRestconf.robot
  24 Resource          ${CURDIR}/../../../libraries/FailFast.robot
  25 Resource          ${CURDIR}/../../../libraries/BGPSpeaker.robot
  26 Resource          ${CURDIR}/../../../libraries/KillPythonTool.robot
  27 Resource          ${CURDIR}/../../../libraries/WaitForFailure.robot
  28 Resource          ${CURDIR}/../../../libraries/Utils.robot
  29
  30 *** Variables ***
  31 ${directory_for_actual_responses}    ${TEMPDIR}/actual
  32 ${directory_for_expected_responses}    ${TEMPDIR}/expected
  33 ${directory_with_template_folders}    ${CURDIR}/../../../variables/bgpuser/
  34 ${HOLDTIME}       180
  35
  36 *** Test Cases ***
  37 Check_For_Empty_Topology_Before_Talking
  38     [Documentation]    Sanity check example-ipv4-topology is up but empty.
  39     [Tags]    critical
  40     Wait_For_Topology_To_Change_To    ${empty_json}    010_Empty.json    timeout=120s
  41     # TODO: Verify that 120 seconds is not too short if this suite is run immediatelly after ODL is started.
  42
  43 Reconfigure_ODL_To_Accept_Connection
  44     [Documentation]    Configure BGP peer module with initiate-connection set to false.
  45     ${template_as_string}=    BuiltIn.Set_Variable    {'IP': '${MININET}', 'HOLDTIME': '${HOLDTIME}', 'PEER_PORT': '${BGP_TOOL_PORT}', 'INITIATE': 'false'}
  46     ConfigViaRestconf.Put_Xml_Template_Folder_Config_Via_Restconf    ${directory_with_template_folders}${/}bgp_peer    ${template_as_string}
  47
  48 Start_Talking_BGP_speaker
  49     [Documentation]    Start Python speaker to connect to ODL, verify that the tool does not promptly exit.
  50     # Myport value is needed for checking whether connection at precise port was established.
  51     BGPSpeaker.Start_BGP_Speaker    --amount 2 --myip=${MININET} --myport=${BGP_TOOL_PORT} --peerip=${CONTROLLER} --peerport=${ODL_BGP_PORT}
  52     Read_And_Fail_If_Prompt_Is_Seen
  53
  54 Check_Talking_Connection_Is_Established
  55     [Documentation]    See TCP (BGP) connection in established state.
  56     # This case is separate from the previous one, to resemble structure of the second half of this suite more closely.
  57     Check_Speaker_Is_Connected
  58
  59 Check_Talking_Topology_Is_Filled
  60     [Documentation]    See new routes in example-ipv4-topology as a proof that synchronization was correct.
  61     [Tags]    critical
  62     Wait_For_Topology_To_Change_To    ${filled_json}    020_Filled.json
  63
  64 Kill_Talking_BGP_Speaker
  65     [Documentation]    Abort the Python speaker. Also, attempt to stop failing fast.
  66     [Setup]    FailFast.Run_Even_When_Failing_Fast
  67     BGPSpeaker.Kill_BGP_Speaker
  68     FailFast.Do_Not_Fail_Fast_From_Now_On
  69     # NOTE: It is still possible to remain failing fast, if both previous and this test have failed.
  70     [Teardown]    FailFast.Do_Not_Start_Failing_If_This_Failed
  71
  72 Check_For_Empty_Topology_After_Talking
  73     [Documentation]    See example-ipv4-topology empty again.
  74     [Tags]    critical
  75     Wait_For_Topology_To_Change_To    ${empty_json}    030_Empty.json
  76
  77 Start_Listening_BGP_Speaker
  78     [Documentation]    Start Python speaker in listening mode, verify that the tool does not exit quickly.
  79     BGPSpeaker.Start_BGP_Speaker    --amount 2 --listen --myip=${MININET} --myport=${BGP_TOOL_PORT} --peerip=${CONTROLLER}
  80     Read_And_Fail_If_Prompt_Is_Seen
  81
  82 Check_Listening_Connection_Is_Not_Established_Yet
  83     [Documentation]    See no TCP connection, as both ODL and tool are in listening mode.
  84     Check_Speaker_Is_Not_Connected
  85
  86 Check_For_Empty_Topology_Before_Listening
  87     [Documentation]    Sanity check example-ipv4-topology is still empty.
  88     [Tags]    critical
  89     Verify_That_Topology_Does_Not_Change_From    ${empty_json}    040_Empty.json
  90
  91 Reconfigure_ODL_To_Initiate_Connection
  92     [Documentation]    Replace BGP peer config module, now with initiate-connection set to true.
  93     ${template_as_string}=    BuiltIn.Set_Variable    {'IP': '${MININET}', 'HOLDTIME': '${HOLDTIME}', 'PEER_PORT': '${BGP_TOOL_PORT}', 'INITIATE': 'true'}
  94     ConfigViaRestconf.Put_Xml_Template_Folder_Config_Via_Restconf    ${directory_with_template_folders}${/}bgp_peer    ${template_as_string}
  95
  96 Check_Listening_Connection_Is_Established
  97     [Documentation]    See TCP (BGP) connection in established state.
  98     Check_Speaker_Is_Connected
  99
 100 Check_Listening_Topology_Is_Filled
 101     [Documentation]    See new routes in example-ipv4-topology as a proof that synchronization was correct.
 102     [Tags]    critical
 103     Wait_For_Topology_To_Change_To    ${filled_json}    050_Filled.json
 104
 105 Kill_Listening_BGP_Speaker
 106     [Documentation]    Abort the Python speaker. Also, attempt to stop failing fast.
 107     [Setup]    FailFast.Run_Even_When_Failing_Fast
 108     BGPSpeaker.Kill_BGP_Speaker
 109     FailFast.Do_Not_Fail_Fast_From_Now_On
 110     # NOTE: It is still possible to remain failing, if both previous and this test failed.
 111     [Teardown]    FailFast.Do_Not_Start_Failing_If_This_Failed
 112
 113 Check_For_Empty_Topology_After_Listening
 114     [Documentation]    Post-condition: Check example-ipv4-topology is empty again.
 115     [Tags]    critical
 116     Wait_For_Topology_To_Change_To    ${empty_json}    060_Empty.json
 117
 118 Delete_Bgp_Peer_Configuration
 119     [Documentation]    Revert the BGP configuration to the original state: without any configured peers.
 120     ConfigViaRestconf.Delete_Xml_Template_Folder_Config_Via_Restconf    ${directory_with_template_folders}${/}bgp_peer
 121     # TODO: Do we need to check something else?
 122
 123 *** Keywords ***
 124 Setup_Everything
 125     [Documentation]    SSH-login to mininet machine, save prompt to variable, create HTTP session,
 126     ...    prepare directories for responses, put Python tool to mininet machine, setup imported resources.
 127     SSHLibrary.Open_Connection    ${MININET}
 128     Utils.Flexible_SSH_Login    ${MININET_USER}    ${MININET_PASSWORD}
 129     ${current_connection}=    Get_Connection
 130     ${current_prompt}=    BuiltIn.Set_Variable    ${current_connection.prompt}
 131     BuiltIn.Log    ${current_prompt}
 132     Builtin.Set_Suite_Variable    ${prompt}    ${current_prompt}
 133     RequestsLibrary.Create_Session    ses    http://${CONTROLLER}:${RESTCONFPORT}${OPERATIONAL_TOPO_API}    auth=${AUTH}
 134     # TODO: Do not include slash in ${OPERATIONAL_TOPO_API}, having it typed here is more readable.
 135     # TODO: Alternatively, create variable in Variables which starts with http.
 136     # Both TODOs would probably need to update every suite relying on current Variables.
 137     OperatingSystem.Remove_Directory    ${directory_for_expected_responses}    recursive=True
 138     OperatingSystem.Remove_Directory    ${directory_for_actual_responses}    recursive=True
 139     # The previous suite may have been using the same directories.
 140     OperatingSystem.Create_Directory    ${directory_for_expected_responses}
 141     OperatingSystem.Create_Directory    ${directory_for_actual_responses}
 142     SSHLibrary.Put_File    ${CURDIR}/../../../../tools/fastbgp/play.py
 143     ConfigViaRestconf.Setup_Config_Via_Restconf
 144     FailFast.Do_Not_Fail_Fast_From_Now_On
 145
 146 Teardown_Everything
 147     [Documentation]    Create and Log the diff between expected and actual responses, make sure Python tool was killed.
 148     ...    Tear down imported Resources.
 149     ${diff}=    OperatingSystem.Run    diff -dur ${directory_for_expected_responses} ${directory_for_actual_responses}
 150     BuiltIn.Log    ${diff}
 151     KillPythonTool.Search_And_Kill_Remote_Python    'play\.py'
 152     ConfigViaRestconf.Teardown_Config_Via_Restconf
 153     RequestsLibrary.Delete_All_Sessions
 154     SSHLibrary.Close_All_Connections
 155
 156 Wait_For_Topology_To_Change_To
 157     [Arguments]    ${json_topology}    ${filename}    ${timeout}=10s    ${refresh}=1s
 158     [Documentation]    Normalize the expected json topology and save it to ${directory_for_expected_responses}.
 159     ...    Wait until Compare_Topology matches. ${directory_for_actual_responses} will hold its last result.
 160     ${topology_normalized}=    Normalize_And_Save_Expected_Json    ${json_topology}    ${filename}    ${directory_for_expected_responses}
 161     BuiltIn.Wait_Until_Keyword_Succeeds    ${timeout}    ${refresh}    Compare_Topology    ${topology_normalized}    ${filename}
 162
 163 Verify_That_Topology_Does_Not_Change_From
 164     [Arguments]    ${json_topology}    ${filename}    ${timeout}=10s    ${refresh}=1s
 165     [Documentation]    Normalize the expected json topology and save it to ${directory_for_expected_responses}.
 166     ...    Verify that Compare_Topology keeps passing. ${directory_for_actual_responses} will hold its last result.
 167     ${topology_normalized}=    Normalize_And_Save_Expected_Json    ${json_topology}    ${filename}    ${directory_for_expected_responses}
 168     WaitForFailure.Verify_Keyword_Does_Not_Fail_Within_Timeout    ${timeout}    ${refresh}    Compare_Topology    ${topology_normalized}    ${filename}
 169
 170 Compare_Topology
 171     [Arguments]    ${expected_normalized}    ${filename}
 172     [Documentation]    Get current example-ipv4-topology as json, normalize it, save to ${directory_for_actual_responses}.
 173     ...    Check that status code is 200, check that normalized jsons match exactly.
 174     ${response}=    RequestsLibrary.Get    ses    topology/example-ipv4-topology
 175     BuiltIn.Log    ${response.status_code}
 176     BuiltIn.Log    ${response.text}
 177     ${actual_normalized}=    Normalize_And_Save_Expected_Json    ${response.text}    ${filename}    ${directory_for_actual_responses}
 178     BuiltIn.Should_Be_Equal_As_Strings    ${response.status_code}    200
 179     BuiltIn.Should_Be_Equal    ${actual_normalized}    ${expected_normalized}
 180
 181 Normalize_And_Save_Expected_Json
 182     [Arguments]    ${json_text}    ${filename}    ${directory}
 183     [Documentation]    Normalize given json using hsf_json library. Log and save the result to given filename under given directory.
 184     ${json_normalized}=    hsf_json.Hsf_Json    ${json_text}
 185     BuiltIn.Log    ${json_normalized}
 186     OperatingSystem.Create_File    ${directory}${/}${filename}    ${json_normalized}
 187     # TODO: Should we prepend .json to the filename? When we detect it is not already prepended?
 188     [Return]    ${json_normalized}
 189
 190 Check_Speaker_Is_Not_Connected
 191     [Documentation]    Give it a few tries to see zero established connections.
 192     BuiltIn.Wait_Until_Keyword_Succeeds    3s    1s    Check_Number_Of_Speaker_Connections    0
 193
 194 Check_Speaker_Is_Connected
 195     [Documentation]    Give it several tries to see exactly one established connection.
 196     BuiltIn.Wait_Until_Keyword_Succeeds    5s    1s    Check_Number_Of_Speaker_Connections    1
 197
 198 Check_Number_Of_Speaker_Connections
 199     [Arguments]    ${howmany}
 200     [Documentation]    Run netstat in mininet machine and parse it for number of established connections. Check it is ${howmany}.
 201     ${output}=    SSHLibrary.Execute_Command    netstat -npt 2> /dev/null | grep -E ":17900 .+ ESTABLISHED .+python" | wc -l
 202     BuiltIn.Should_Be_Equal_As_Strings    ${output}    ${howmany}
 203
 204 Read_And_Fail_If_Prompt_Is_Seen
 205     [Documentation]    Try to read SSH to see prompt, but expect to see no prompt within SSHLibrary's timeout.
 206     ${passed}=    BuiltIn.Run_Keyword_And_Return_Status    BuiltIn.Run_Keyword_And_Expect_Error    No match found for '${prompt}' in *.    Read_Text_Before_Prompt
 207     BuiltIn.Return_From_Keyword_If    ${passed}
 208     BGPSpeaker.Dump_BGP_Speaker_Logs
 209     Builtin.Fail    The prompt was seen but it was not expected yet
 210
 211 Read_Text_Before_Prompt
 212     [Documentation]    Log text gathered by SSHLibrary.Read_Until_Prompt.
 213     ...    This needs to be a separate keyword just because how Read_And_Fail_If_Prompt_Is_Seen is implemented.
 214     ${text}=    SSHLibrary.Read_Until_Prompt
 215     BuiltIn.Log    ${text}