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 [Documentation] Basic setup/cleanup work that can be done safely before any system
19 [Arguments] ${system}=${MININET} ${user}=${MININET_USER} ${password}=${MININET_PASSWORD} ${prompt}=${DEFAULT_LINUX_PROMPT} ${timeout}=30s
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} ${prompt_timeout}=30s
31 [Documentation] Basic setup to start mininet with custom topology
32 Log Start the test on the base edition
34 ${mininet_conn_id}= Open Connection ${system} prompt=${prompt} timeout=${prompt_timeout}
35 Set Suite Variable ${mininet_conn_id}
36 Flexible Mininet Login user=${user} password=${password}
40 [Return] ${mininet_conn_id}
42 Connect To Controller Karaf
43 [Documentation] Connect to the controller's karaf console.
44 ${esc}= BuiltIn.Evaluate chr(int(27))
45 ${prompt}= Builtin.Set Variable @${esc}[0m${esc}[34mroot${esc}[0m>
46 ${connection}= SSHLibrary.Open_Connection ${CONTROLLER} port=${KARAF_SHELL_PORT} prompt=${prompt}
47 Set Suite Variable ${controller_index} ${connection}
48 SSHLibrary.Login ${KARAF_USER} ${KARAF_PASSWORD}
50 Log Message To Controller Karaf
51 [Arguments] ${message}
52 [Documentation] Send a message into the controller's karaf log file.
53 # Background info: If there was no previous SSH connection, the "Get
54 # Connection" returns an information structure whose "index" field
55 # resolves to "None", and the "Switch Connection" below does not
57 ${current}= Get_Connection
58 ${connection}= Set Variable ${current.index}
59 BuiltIn.Run Keyword If ${controller_index} <> -1 Switch Connection ${controller_index}
60 BuiltIn.Run Keyword If ${controller_index} == -1 Connect to Controller Karaf
61 SSHLibrary.Write log:log "ROBOT MESSAGE: ${message}"
62 SSHLibrary.Read_Until_Prompt
63 Switch Connection ${connection}
66 [Arguments] ${mininet_conn_id} ${prompt}=${DEFAULT_LINUX_PROMPT}
67 [Documentation] Basic setup to stop/clean mininet
68 Switch Connection ${mininet_conn_id}
74 [Arguments] ${prompt}=${DEFAULT_LINUX_PROMPT}
75 [Documentation] Cleanup/Shutdown work that should be done at the completion of all
77 Log Stop the test on the base edition
78 Switch Connection ${mininet_conn_id}
84 Ensure All Nodes Are In Response
85 [Arguments] ${URI} ${node_list}
86 [Documentation] A GET is made to the supplied ${URI} and every item in the ${node_list}
87 ... is verified to exist in the repsonse. This keyword currently implies that it's node
88 ... specific but any list of strings can be given in ${node_list}. Refactoring of this
89 ... to make it more generic should be done. (see keyword "Check For Elements At URI")
90 : FOR ${node} IN @{node_list}
91 \ ${resp} RequestsLibrary.Get session ${URI}
92 \ Should Be Equal As Strings ${resp.status_code} 200
93 \ Should Contain ${resp.content} ${node}
97 [Documentation] A GET on the /node/${node} API is made and specific flow stat
98 ... strings are checked for existence.
99 ${resp} RequestsLibrary.Get session ${OPERATIONAL_NODES_API}/node/${node}
100 Should Be Equal As Strings ${resp.status_code} 200
101 Should Contain ${resp.content} flow-capable-node-connector-statistics
102 Should Contain ${resp.content} flow-table-statistics
104 Check That Port Count Is Ok
105 [Arguments] ${node} ${count}
106 [Documentation] A GET on the /port API is made and the specified port ${count} is
107 ... verified. A more generic Keyword "Check For Specific Number Of Elements At URI"
108 ... also does this work and further consolidation should be done.
109 ${resp} RequestsLibrary.Get session ${REST_CONTEXT}/${CONTAINER}/port
111 Should Be Equal As Strings ${resp.status_code} 200
112 Should Contain X Times ${resp.content} ${node} ${count}
114 Check For Specific Number Of Elements At URI
115 [Arguments] ${uri} ${element} ${expected_count}
116 [Documentation] A GET is made to the specified ${URI} and the specific count of a
117 ... given element is done (as supplied by ${element} and ${expected_count})
118 ${resp} RequestsLibrary.Get session ${uri}
120 Should Be Equal As Strings ${resp.status_code} 200
121 Should Contain X Times ${resp.content} ${element} ${expected_count}
123 Check For Elements At URI
124 [Arguments] ${uri} ${elements}
125 [Documentation] A GET is made at the supplied ${URI} and every item in the list of
126 ... ${elements} is verified to exist in the response
127 ${resp} RequestsLibrary.Get session ${uri}
129 Should Be Equal As Strings ${resp.status_code} 200
130 : FOR ${i} IN @{elements}
131 \ Should Contain ${resp.content} ${i}
133 Check For Elements Not At URI
134 [Arguments] ${uri} ${elements}
135 [Documentation] A GET is made at the supplied ${URI} and every item in the list of
136 ... ${elements} is verified to NOT exist in the response
137 ${resp} RequestsLibrary.Get session ${uri}
139 Should Be Equal As Strings ${resp.status_code} 200
140 : FOR ${i} IN @{elements}
141 \ Should Not Contain ${resp.content} ${i}
144 [Arguments] ${system}=${MININET}
145 Run Command On Mininet ${system} sudo mn -c
146 Run Command On Mininet ${system} sudo ps -elf | egrep 'usr/local/bin/mn' | egrep python | awk '{print "sudo kill -9",$4}' | sh
149 [Arguments] ${system}=${MININET}
150 [Documentation] Cleans up the OVS instance and remove any existing common known bridges.
151 ${output}= Run Command On Mininet ${system} sudo ovs-vsctl list-br
153 : FOR ${i} IN ${output}
154 \ Run Command On Mininet ${system} sudo ovs-vsctl --if-exists del-br ${i}
155 Run Command On Mininet ${system} sudo ovs-vsctl del-manager
157 Extract Value From Content
158 [Arguments] ${content} ${index} ${strip}=nostrip
159 [Documentation] Will take the given response content and return the value at the given index as a string
160 ${value}= Get Json Value ${content} ${index}
161 ${value}= Convert To String ${value}
162 ${value}= Run Keyword If '${strip}' == 'strip' Strip Quotes ${value}
165 Get Process ID Based On Regex On Remote System
166 [Arguments] ${system} ${regex_string_to_match_on} ${user}=${MININET_USER} ${password}=${EMPTY} ${prompt}=${DEFAULT_LINUX_PROMPT} ${prompt_timeout}=30s
167 [Documentation] Uses ps to find a process that matches the supplied regex. Returns the PID of that process
168 ... The ${regex_string_to_match_on} should produce a unique process otherwise the PID returned may not be
170 # doing the extra -v grep in this command to exclude the grep process itself from the output
171 ${cmd}= Set Variable ps -elf | grep -v grep | grep ${regex_string_to_match_on} | awk '{print $4}'
172 ${output}= Run Command On Remote System ${system} ${cmd} user=${user} password=${password} prompt=${prompt} prompt_timeout=${prompt_timeout}
173 # ${output} contains the system prompt and all we want is the value of the number
174 ${pid}= Fetch From Left ${output} \r
176 # TODO: Get Process * keywords have perhaps non-standard default credentials.
177 # ... Should there be * On Mininet and * On Controller specializations?
179 Get Process Thread Count On Remote System
180 [Arguments] ${system} ${pid} ${user}=${MININET_USER} ${password}=${EMPTY} ${prompt}=${DEFAULT_LINUX_PROMPT} ${prompt_timeout}=30s
181 [Documentation] Executes the ps command to retrieve the lightweight process (aka thread) count.
182 ${cmd}= Set Variable ps --no-headers -o nlwp ${pid}
183 ${output}= Run Command On Remote System ${system} ${cmd} user=${user} password=${password} prompt=${prompt} prompt_timeout=${prompt_timeout}
184 # ${output} contains the system prompt and all we want is the value of the number
185 ${thread_count}= Fetch From Left ${output} \r
186 [Return] ${thread_count}
189 [Arguments] ${string_to_strip}
190 [Documentation] Will strip ALL quotes from given string and return the new string
191 ${string_to_return}= Replace String ${string_to_strip} " \ count=-1
192 [Return] ${string_to_return}
195 [Arguments] ${user} ${password}=${EMPTY} ${delay}=0.5s
196 [Documentation] On active SSH session: if given non-empty password, do Login, else do Login With Public Key.
197 ${pwd_length} = BuiltIn.Get Length ${password}
198 # ${pwd_length} is guaranteed to be an integer, so we are safe to evaluate it as Python expression.
199 BuiltIn.Run Keyword And Return If ${pwd_length} > 0 SSHLibrary.Login ${user} ${password} delay=${delay}
200 BuiltIn.Run Keyword And Return SSHLibrary.Login With Public Key ${user} ${USER_HOME}/.ssh/${SSH_KEY} ${KEYFILE_PASS} delay=${delay}
202 Flexible Mininet Login
203 [Arguments] ${user}=${MININET_USER} ${password}=${MININET_PASSWORD} ${delay}=0.5s
204 [Documentation] Call Flexible SSH Login, but with default values suitable for Mininet machine.
205 BuiltIn.Run Keyword And Return Flexible SSH Login user=${user} password=${password} delay=${delay}
207 Flexible Controller Login
208 [Arguments] ${user}=${CONTROLLER_USER} ${password}=${CONTROLLER_PASSWORD} ${delay}=0.5s
209 [Documentation] Call Flexible SSH Login, but with default values suitable for Controller machine.
210 BuiltIn.Run Keyword And Return Flexible SSH Login user=${user} password=${password} delay=${delay}
212 Run Command On Remote System
213 [Arguments] ${system} ${cmd} ${user}=${MININET_USER} ${password}=${EMPTY} ${prompt}=${DEFAULT_LINUX_PROMPT} ${prompt_timeout}=30s
214 [Documentation] Reduces the common work of running a command on a remote system to a single higher level
215 ... robot keyword, taking care to log in with a public key and. The command given is written
216 ... and the output returned. No test conditions are checked.
217 Log Attempting to execute ${cmd} on ${system} by ${user} with ${keyfile_pass} and ${prompt}
218 ${conn_id}= SSHLibrary.Open Connection ${system} prompt=${prompt} timeout=${prompt_timeout}
219 Flexible SSH Login ${user} ${password}
220 SSHLibrary.Write ${cmd}
221 ${output}= SSHLibrary.Read Until ${prompt}
222 SSHLibrary.Close Connection
227 [Documentation] Construct ctrl+c character and SSH-write it (without endline) to the current SSH connection.
228 ... Do not read anything yet.
229 ${ctrl_c}= BuiltIn.Evaluate chr(int(3))
230 SSHLibrary.Write_Bare ${ctrl_c}
232 Run Command On Mininet
233 [Arguments] ${system}=${MININET} ${cmd}=echo ${user}=${MININET_USER} ${password}=${MININET_PASSWORD} ${prompt}=${DEFAULT_LINUX_PROMPT} ${prompt_timeout}=30s
234 [Documentation] Call Run Comand On Remote System, but with default values suitable for Mininet machine.
235 BuiltIn.Run Keyword And Return Run Command On Remote System ${system} ${cmd} user=${user} password=${password} prompt=${prompt} prompt_timeout=${prompt_timeout}
237 Run Command On Controller
238 [Arguments] ${system}=${CONTROLLER} ${cmd}=echo ${user}=${CONTROLLER_USER} ${password}=${CONTROLLER_PASSWORD} ${prompt}=${DEFAULT_LINUX_PROMPT} ${prompt_timeout}=30s
239 [Documentation] Call Run Comand On Remote System, but with default values suitable for Controller machine.
240 BuiltIn.Run Keyword And Return Run Command On Remote System ${system} ${cmd} user=${user} password=${password} prompt=${prompt} prompt_timeout=${prompt_timeout}
242 Verify File Exists On Remote System
243 [Arguments] ${system} ${file} ${user}=${MININET_USER} ${password}=${MININET_PASSWORD} ${prompt}=${DEFAULT_LINUX_PROMPT} ${prompt_timeout}=5s
244 [Documentation] Will create connection with public key and will PASS if the given ${file} exists,
245 ... otherwise will FAIL
246 ${conn_id}= Open Connection ${system} prompt=${prompt} timeout=${prompt_timeout}
247 Flexible SSH Login ${user} ${password}
248 SSHLibrary.File Should Exist ${file}
251 Verify Controller Is Not Dead
252 [Arguments] ${controller_ip}=${CONTROLLER}
253 [Documentation] Will execute any tests to verify the controller is not dead. Some checks are
254 ... Out Of Memory Execptions.
255 Check Karaf Log File Does Not Have Messages ${controller_ip} java.lang.OutOfMemoryError
256 # TODO: Should Verify Controller * keywords also accept user, password, prompt and karaf_log arguments?
258 Verify Controller Has No Null Pointer Exceptions
259 [Arguments] ${controller_ip}=${CONTROLLER}
260 [Documentation] Will execute any tests to verify the controller is not having any null pointer eceptions.
261 Check Karaf Log File Does Not Have Messages ${controller_ip} java.lang.NullPointerException
265 [Documentation] Get the Epoc time from MM/DD/YYYY HH:MM:SS
266 ${epoch_time}= Convert Date ${time} epoch exclude_milles=True date_format=%m/%d/%Y %H:%M:%S
267 ${epoch_time}= Convert To Integer ${epoch_time}
268 [Return] ${epoch_time}
270 Remove Space on String
271 [Arguments] ${str} ${count}=-1
272 [Documentation] Remove the empty space from given string.count is optional,if its given
273 ... that many occurence of space will be removed from left
274 ${x}= Convert To String ${str}
275 ${x}= Replace String ${str} ${SPACE} ${EMPTY} count=${count}
278 Split Value from String
279 [Arguments] ${str} ${splitter}
280 [Documentation] Split the String based on given splitter and return as list
281 @{x}= Split String ${str} ${splitter}
284 Concatenate the String
285 [Arguments] ${str1} ${str2}
286 [Documentation] Catenate the two non-string objects and return as String
287 ${str1}= Convert to String ${str1}
288 ${str2}= Convert to String ${str2}
289 ${output}= Catenate ${str1} ${str2}
292 Remove All Elements At URI
294 ${resp} RequestsLibrary.Delete session ${uri}
295 Should Be Equal As Strings ${resp.status_code} 200
297 Add Elements To URI From File
298 [Arguments] ${dest_uri} ${data_file}
299 ${body} OperatingSystem.Get File ${data_file}
300 ${resp} RequestsLibrary.Put session ${dest_uri} data=${body} headers=${headers}
301 Should Be Equal As Strings ${resp.status_code} 200
303 Post Elements To URI From File
304 [Arguments] ${dest_uri} ${data_file}
305 ${body} OperatingSystem.Get File ${data_file}
306 ${resp} RequestsLibrary.Post session ${dest_uri} data=${body} headers=${headers}
307 Should Be Equal As Strings ${resp.status_code} 200
309 Run Process With Logging And Status Check
310 [Arguments] @{proc_args}
311 [Documentation] Execute an OS command, log STDOUT and STDERR output and check exit code to be 0
312 ${result}= Run Process @{proc_args}
315 Should Be Equal As Integers ${result.rc} 0