6 Library ./UtilLibrary.py
7 Resource KarafKeywords.robot
8 Variables ../variables/Variables.py
11 # TODO: Introduce ${tree_size} and use instead of 1 in the next line.
12 ${start} sudo mn --controller=remote,ip=${CONTROLLER} --topo tree,1 --switch ovsk,protocols=OpenFlow13
13 ${controller_index} -1
17 [Arguments] ${system}=${MININET} ${user}=${MININET_USER} ${password}=${MININET_PASSWORD} ${prompt}=${DEFAULT_LINUX_PROMPT} ${timeout}=30s
18 [Documentation] Basic setup/cleanup work that can be done safely before any system
20 Log Start the test on the base edition
22 ${mininet_conn_id}= Open Connection ${system} prompt=${DEFAULT_LINUX_PROMPT} timeout=${timeout}
23 Set Suite Variable ${mininet_conn_id}
24 Flexible Mininet Login user=${user} password=${password}
25 Execute Command sudo ovs-vsctl set-manager ptcp:6644
30 [Arguments] ${system}=${MININET} ${cmd}=${start} ${custom}= ${user}=${MININET_USER} ${password}=${MININET_PASSWORD} ${prompt}=${DEFAULT_LINUX_PROMPT}
31 ... ${prompt_timeout}=30s
32 [Documentation] Basic setup to start mininet with custom topology
33 Log Start the test on the base edition
35 ${mininet_conn_id}= Open Connection ${system} prompt=${prompt} timeout=${prompt_timeout}
36 Set Suite Variable ${mininet_conn_id}
37 Flexible Mininet Login user=${user} password=${password}
41 [Return] ${mininet_conn_id}
43 Connect To Controller Karaf
44 [Documentation] Connect to the controller's karaf console.
45 ${esc}= BuiltIn.Evaluate chr(int(27))
46 ${prompt}= Builtin.Set Variable @${esc}[0m${esc}[34mroot${esc}[0m>
47 ${connection}= SSHLibrary.Open_Connection ${CONTROLLER} port=${KARAF_SHELL_PORT} prompt=${prompt}
48 Set Suite Variable ${controller_index} ${connection}
49 SSHLibrary.Login ${KARAF_USER} ${KARAF_PASSWORD}
51 Log Message To Controller Karaf
52 [Arguments] ${message}
53 [Documentation] Send a message into the controller's karaf log file.
54 # Background info: If there was no previous SSH connection, the "Get
55 # Connection" returns an information structure whose "index" field
56 # resolves to "None", and the "Switch Connection" below does not
58 ${current}= Get_Connection
59 ${connection}= Set Variable ${current.index}
60 BuiltIn.Run Keyword If ${controller_index} <> -1 Switch Connection ${controller_index}
61 BuiltIn.Run Keyword If ${controller_index} == -1 Connect to Controller Karaf
62 SSHLibrary.Write log:log "ROBOT MESSAGE: ${message}"
63 SSHLibrary.Read_Until_Prompt
64 Switch Connection ${connection}
67 [Arguments] ${mininet_conn_id} ${prompt}=${DEFAULT_LINUX_PROMPT}
68 [Documentation] Basic setup to stop/clean mininet
69 Switch Connection ${mininet_conn_id}
75 [Arguments] ${prompt}=${DEFAULT_LINUX_PROMPT}
76 [Documentation] Cleanup/Shutdown work that should be done at the completion of all
78 Log Stop the test on the base edition
79 Switch Connection ${mininet_conn_id}
85 Ensure All Nodes Are In Response
86 [Arguments] ${URI} ${node_list}
87 [Documentation] A GET is made to the supplied ${URI} and every item in the ${node_list}
88 ... is verified to exist in the repsonse. This keyword currently implies that it's node
89 ... specific but any list of strings can be given in ${node_list}. Refactoring of this
90 ... to make it more generic should be done. (see keyword "Check For Elements At URI")
91 : FOR ${node} IN @{node_list}
92 \ ${resp} RequestsLibrary.Get session ${URI}
93 \ Should Be Equal As Strings ${resp.status_code} 200
94 \ Should Contain ${resp.content} ${node}
98 [Documentation] A GET on the /node/${node} API is made and specific flow stat
99 ... strings are checked for existence.
100 ${resp} RequestsLibrary.Get session ${OPERATIONAL_NODES_API}/node/${node}
101 Should Be Equal As Strings ${resp.status_code} 200
102 Should Contain ${resp.content} flow-capable-node-connector-statistics
103 Should Contain ${resp.content} flow-table-statistics
105 Check That Port Count Is Ok
106 [Arguments] ${node} ${count}
107 [Documentation] A GET on the /port API is made and the specified port ${count} is
108 ... verified. A more generic Keyword "Check For Specific Number Of Elements At URI"
109 ... also does this work and further consolidation should be done.
110 ${resp} RequestsLibrary.Get session ${REST_CONTEXT}/${CONTAINER}/port
112 Should Be Equal As Strings ${resp.status_code} 200
113 Should Contain X Times ${resp.content} ${node} ${count}
115 Check For Specific Number Of Elements At URI
116 [Arguments] ${uri} ${element} ${expected_count}
117 [Documentation] A GET is made to the specified ${URI} and the specific count of a
118 ... given element is done (as supplied by ${element} and ${expected_count})
119 ${resp} RequestsLibrary.Get session ${uri}
121 Should Be Equal As Strings ${resp.status_code} 200
122 Should Contain X Times ${resp.content} ${element} ${expected_count}
124 Check For Elements At URI
125 [Arguments] ${uri} ${elements}
126 [Documentation] A GET is made at the supplied ${URI} and every item in the list of
127 ... ${elements} is verified to exist in the response
128 ${resp} RequestsLibrary.Get session ${uri}
130 Should Be Equal As Strings ${resp.status_code} 200
131 : FOR ${i} IN @{elements}
132 \ Should Contain ${resp.content} ${i}
134 Check For Elements Not At URI
135 [Arguments] ${uri} ${elements}
136 [Documentation] A GET is made at the supplied ${URI} and every item in the list of
137 ... ${elements} is verified to NOT exist in the response
138 ${resp} RequestsLibrary.Get session ${uri}
140 Should Be Equal As Strings ${resp.status_code} 200
141 : FOR ${i} IN @{elements}
142 \ Should Not Contain ${resp.content} ${i}
145 [Arguments] ${system}=${MININET}
146 Run Command On Mininet ${system} sudo mn -c
147 Run Command On Mininet ${system} sudo ps -elf | egrep 'usr/local/bin/mn' | egrep python | awk '{print "sudo kill -9",$4}' | sh
150 [Arguments] ${system}=${MININET}
151 [Documentation] Cleans up the OVS instance and remove any existing common known bridges.
152 ${output}= Run Command On Mininet ${system} sudo ovs-vsctl list-br
154 : FOR ${i} IN ${output}
155 \ Run Command On Mininet ${system} sudo ovs-vsctl --if-exists del-br ${i}
156 Run Command On Mininet ${system} sudo ovs-vsctl del-manager
158 Extract Value From Content
159 [Arguments] ${content} ${index} ${strip}=nostrip
160 [Documentation] Will take the given response content and return the value at the given index as a string
161 ${value}= Get Json Value ${content} ${index}
162 ${value}= Convert To String ${value}
163 ${value}= Run Keyword If '${strip}' == 'strip' Strip Quotes ${value}
166 Get Process ID Based On Regex On Remote System
167 [Arguments] ${system} ${regex_string_to_match_on} ${user}=${MININET_USER} ${password}=${EMPTY} ${prompt}=${DEFAULT_LINUX_PROMPT} ${prompt_timeout}=30s
168 [Documentation] Uses ps to find a process that matches the supplied regex. Returns the PID of that process
169 ... The ${regex_string_to_match_on} should produce a unique process otherwise the PID returned may not be
171 # doing the extra -v grep in this command to exclude the grep process itself from the output
172 ${cmd}= Set Variable ps -elf | grep -v grep | grep ${regex_string_to_match_on} | awk '{print $4}'
173 ${output}= Run Command On Remote System ${system} ${cmd} user=${user} password=${password} prompt=${prompt}
174 ... prompt_timeout=${prompt_timeout}
175 # ${output} contains the system prompt and all we want is the value of the number
176 ${pid}= Fetch From Left ${output} \r
177 # TODO: Get Process * keywords have perhaps non-standard default credentials.
178 # ... Should there be * On Mininet and * On Controller specializations?
181 Get Process Thread Count On Remote System
182 [Arguments] ${system} ${pid} ${user}=${MININET_USER} ${password}=${EMPTY} ${prompt}=${DEFAULT_LINUX_PROMPT} ${prompt_timeout}=30s
183 [Documentation] Executes the ps command to retrieve the lightweight process (aka thread) count.
184 ${cmd}= Set Variable ps --no-headers -o nlwp ${pid}
185 ${output}= Run Command On Remote System ${system} ${cmd} user=${user} password=${password} prompt=${prompt}
186 ... prompt_timeout=${prompt_timeout}
187 # ${output} contains the system prompt and all we want is the value of the number
188 ${thread_count}= Fetch From Left ${output} \r
189 [Return] ${thread_count}
192 [Arguments] ${string_to_strip}
193 [Documentation] Will strip ALL quotes from given string and return the new string
194 ${string_to_return}= Replace String ${string_to_strip} " \ count=-1
195 [Return] ${string_to_return}
198 [Arguments] ${user} ${password}=${EMPTY} ${delay}=0.5s
199 [Documentation] On active SSH session: if given non-empty password, do Login, else do Login With Public Key.
200 ${pwd_length} = BuiltIn.Get Length ${password}
201 # ${pwd_length} is guaranteed to be an integer, so we are safe to evaluate it as Python expression.
202 BuiltIn.Run Keyword And Return If ${pwd_length} > 0 SSHLibrary.Login ${user} ${password} delay=${delay}
203 BuiltIn.Run Keyword And Return SSHLibrary.Login With Public Key ${user} ${USER_HOME}/.ssh/${SSH_KEY} ${KEYFILE_PASS} delay=${delay}
205 Flexible Mininet Login
206 [Arguments] ${user}=${MININET_USER} ${password}=${MININET_PASSWORD} ${delay}=0.5s
207 [Documentation] Call Flexible SSH Login, but with default values suitable for Mininet machine.
208 BuiltIn.Run Keyword And Return Flexible SSH Login user=${user} password=${password} delay=${delay}
210 Flexible Controller Login
211 [Arguments] ${user}=${CONTROLLER_USER} ${password}=${CONTROLLER_PASSWORD} ${delay}=0.5s
212 [Documentation] Call Flexible SSH Login, but with default values suitable for Controller machine.
213 BuiltIn.Run Keyword And Return Flexible SSH Login user=${user} password=${password} delay=${delay}
215 Run Command On Remote System
216 [Arguments] ${system} ${cmd} ${user}=${MININET_USER} ${password}=${EMPTY} ${prompt}=${DEFAULT_LINUX_PROMPT} ${prompt_timeout}=30s
217 [Documentation] Reduces the common work of running a command on a remote system to a single higher level
218 ... robot keyword, taking care to log in with a public key and. The command given is written
219 ... and the output returned. No test conditions are checked.
220 Log Attempting to execute ${cmd} on ${system} by ${user} with ${keyfile_pass} and ${prompt}
221 ${conn_id}= SSHLibrary.Open Connection ${system} prompt=${prompt} timeout=${prompt_timeout}
222 Flexible SSH Login ${user} ${password}
223 SSHLibrary.Write ${cmd}
224 ${output}= SSHLibrary.Read Until ${prompt}
225 SSHLibrary.Close Connection
230 [Documentation] Construct ctrl+c character and SSH-write it (without endline) to the current SSH connection.
231 ... Do not read anything yet.
232 ${ctrl_c}= BuiltIn.Evaluate chr(int(3))
233 SSHLibrary.Write_Bare ${ctrl_c}
235 Run Command On Mininet
236 [Arguments] ${system}=${MININET} ${cmd}=echo ${user}=${MININET_USER} ${password}=${MININET_PASSWORD} ${prompt}=${DEFAULT_LINUX_PROMPT} ${prompt_timeout}=30s
237 [Documentation] Call Run Comand On Remote System, but with default values suitable for Mininet machine.
238 BuiltIn.Run Keyword And Return Run Command On Remote System ${system} ${cmd} user=${user} password=${password} prompt=${prompt}
239 ... prompt_timeout=${prompt_timeout}
241 Run Command On Controller
242 [Arguments] ${system}=${CONTROLLER} ${cmd}=echo ${user}=${CONTROLLER_USER} ${password}=${CONTROLLER_PASSWORD} ${prompt}=${DEFAULT_LINUX_PROMPT} ${prompt_timeout}=30s
243 [Documentation] Call Run Comand On Remote System, but with default values suitable for Controller machine.
244 BuiltIn.Run Keyword And Return Run Command On Remote System ${system} ${cmd} user=${user} password=${password} prompt=${prompt}
245 ... prompt_timeout=${prompt_timeout}
247 Verify File Exists On Remote System
248 [Arguments] ${system} ${file} ${user}=${MININET_USER} ${password}=${MININET_PASSWORD} ${prompt}=${DEFAULT_LINUX_PROMPT} ${prompt_timeout}=5s
249 [Documentation] Will create connection with public key and will PASS if the given ${file} exists,
250 ... otherwise will FAIL
251 ${conn_id}= Open Connection ${system} prompt=${prompt} timeout=${prompt_timeout}
252 Flexible SSH Login ${user} ${password}
253 SSHLibrary.File Should Exist ${file}
256 Verify Controller Is Not Dead
257 [Arguments] ${controller_ip}=${CONTROLLER}
258 [Documentation] Will execute any tests to verify the controller is not dead. Some checks are
259 ... Out Of Memory Execptions.
260 Check Karaf Log File Does Not Have Messages ${controller_ip} java.lang.OutOfMemoryError
261 # TODO: Should Verify Controller * keywords also accept user, password, prompt and karaf_log arguments?
263 Verify Controller Has No Null Pointer Exceptions
264 [Arguments] ${controller_ip}=${CONTROLLER}
265 [Documentation] Will execute any tests to verify the controller is not having any null pointer eceptions.
266 Check Karaf Log File Does Not Have Messages ${controller_ip} java.lang.NullPointerException
270 [Documentation] Get the Epoc time from MM/DD/YYYY HH:MM:SS
271 ${epoch_time}= Convert Date ${time} epoch exclude_milles=True date_format=%m/%d/%Y %H:%M:%S
272 ${epoch_time}= Convert To Integer ${epoch_time}
273 [Return] ${epoch_time}
275 Remove Space on String
276 [Arguments] ${str} ${count}=-1
277 [Documentation] Remove the empty space from given string.count is optional,if its given
278 ... that many occurence of space will be removed from left
279 ${x}= Convert To String ${str}
280 ${x}= Replace String ${str} ${SPACE} ${EMPTY} count=${count}
283 Split Value from String
284 [Arguments] ${str} ${splitter}
285 [Documentation] Split the String based on given splitter and return as list
286 @{x}= Split String ${str} ${splitter}
289 Concatenate the String
290 [Arguments] ${str1} ${str2}
291 [Documentation] Catenate the two non-string objects and return as String
292 ${str1}= Convert to String ${str1}
293 ${str2}= Convert to String ${str2}
294 ${output}= Catenate ${str1} ${str2}
297 Remove All Elements At URI
299 ${resp} RequestsLibrary.Delete session ${uri}
300 Should Be Equal As Strings ${resp.status_code} 200
302 Add Elements To URI From File
303 [Arguments] ${dest_uri} ${data_file}
304 ${body} OperatingSystem.Get File ${data_file}
305 ${resp} RequestsLibrary.Put session ${dest_uri} data=${body} headers=${headers}
306 Should Be Equal As Strings ${resp.status_code} 200
308 Post Elements To URI From File
309 [Arguments] ${dest_uri} ${data_file}
310 ${body} OperatingSystem.Get File ${data_file}
311 ${resp} RequestsLibrary.Post session ${dest_uri} data=${body} headers=${headers}
312 Should Be Equal As Strings ${resp.status_code} 200
314 Run Process With Logging And Status Check
315 [Arguments] @{proc_args}
316 [Documentation] Execute an OS command, log STDOUT and STDERR output and check exit code to be 0
317 ${result}= Run Process @{proc_args}
320 Should Be Equal As Integers ${result.rc} 0