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
16 [Arguments] ${system}=${MININET} ${user}=${MININET_USER} ${password}=${MININET_PASSWORD} ${prompt}=${DEFAULT_LINUX_PROMPT} ${timeout}=30s
17 [Documentation] Basic setup/cleanup work that can be done safely before any system
19 Log Start the test on the base edition
21 ${mininet_conn_id}= Open Connection ${system} prompt=${DEFAULT_LINUX_PROMPT} timeout=${timeout}
22 Set Suite Variable ${mininet_conn_id}
23 Flexible Mininet Login user=${user} password=${password}
24 Execute Command sudo ovs-vsctl set-manager ptcp:6644
29 [Arguments] ${system}=${MININET} ${cmd}=${start} ${custom}= ${user}=${MININET_USER} ${password}=${MININET_PASSWORD} ${prompt}=${DEFAULT_LINUX_PROMPT}
30 ... ${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}
43 [Arguments] ${mininet_conn_id} ${prompt}=${DEFAULT_LINUX_PROMPT}
44 [Documentation] Basic setup to stop/clean mininet
45 Switch Connection ${mininet_conn_id}
51 [Arguments] ${prompt}=${DEFAULT_LINUX_PROMPT}
52 [Documentation] Cleanup/Shutdown work that should be done at the completion of all
54 Log Stop the test on the base edition
55 Switch Connection ${mininet_conn_id}
61 Ensure All Nodes Are In Response
62 [Arguments] ${URI} ${node_list}
63 [Documentation] A GET is made to the supplied ${URI} and every item in the ${node_list}
64 ... is verified to exist in the repsonse. This keyword currently implies that it's node
65 ... specific but any list of strings can be given in ${node_list}. Refactoring of this
66 ... to make it more generic should be done. (see keyword "Check For Elements At URI")
67 : FOR ${node} IN @{node_list}
68 \ ${resp} RequestsLibrary.Get session ${URI}
69 \ Should Be Equal As Strings ${resp.status_code} 200
70 \ Should Contain ${resp.content} ${node}
74 [Documentation] A GET on the /node/${node} API is made and specific flow stat
75 ... strings are checked for existence.
76 ${resp} RequestsLibrary.Get session ${OPERATIONAL_NODES_API}/node/${node}
77 Should Be Equal As Strings ${resp.status_code} 200
78 Should Contain ${resp.content} flow-capable-node-connector-statistics
79 Should Contain ${resp.content} flow-table-statistics
81 Check That Port Count Is Ok
82 [Arguments] ${node} ${count}
83 [Documentation] A GET on the /port API is made and the specified port ${count} is
84 ... verified. A more generic Keyword "Check For Specific Number Of Elements At URI"
85 ... also does this work and further consolidation should be done.
86 ${resp} RequestsLibrary.Get session ${REST_CONTEXT}/${CONTAINER}/port
88 Should Be Equal As Strings ${resp.status_code} 200
89 Should Contain X Times ${resp.content} ${node} ${count}
91 Check For Specific Number Of Elements At URI
92 [Arguments] ${uri} ${element} ${expected_count}
93 [Documentation] A GET is made to the specified ${URI} and the specific count of a
94 ... given element is done (as supplied by ${element} and ${expected_count})
95 ${resp} RequestsLibrary.Get session ${uri}
97 Should Be Equal As Strings ${resp.status_code} 200
98 Should Contain X Times ${resp.content} ${element} ${expected_count}
100 Check For Elements At URI
101 [Arguments] ${uri} ${elements}
102 [Documentation] A GET is made at the supplied ${URI} and every item in the list of
103 ... ${elements} is verified to exist in the response
104 ${resp} RequestsLibrary.Get session ${uri}
106 Should Be Equal As Strings ${resp.status_code} 200
107 : FOR ${i} IN @{elements}
108 \ Should Contain ${resp.content} ${i}
110 Check For Elements Not At URI
111 [Arguments] ${uri} ${elements}
112 [Documentation] A GET is made at the supplied ${URI} and every item in the list of
113 ... ${elements} is verified to NOT exist in the response
114 ${resp} RequestsLibrary.Get session ${uri}
116 Should Be Equal As Strings ${resp.status_code} 200
117 : FOR ${i} IN @{elements}
118 \ Should Not Contain ${resp.content} ${i}
121 [Arguments] ${system}=${MININET}
122 Run Command On Mininet ${system} sudo mn -c
123 Run Command On Mininet ${system} sudo ps -elf | egrep 'usr/local/bin/mn' | egrep python | awk '{print "sudo kill -9",$4}' | sh
126 [Arguments] ${system}=${MININET}
127 [Documentation] Cleans up the OVS instance and remove any existing common known bridges.
128 ${output}= Run Command On Mininet ${system} sudo ovs-vsctl list-br
130 : FOR ${i} IN ${output}
131 \ Run Command On Mininet ${system} sudo ovs-vsctl --if-exists del-br ${i}
132 Run Command On Mininet ${system} sudo ovs-vsctl del-manager
134 Extract Value From Content
135 [Arguments] ${content} ${index} ${strip}=nostrip
136 [Documentation] Will take the given response content and return the value at the given index as a string
137 ${value}= Get Json Value ${content} ${index}
138 ${value}= Convert To String ${value}
139 ${value}= Run Keyword If '${strip}' == 'strip' Strip Quotes ${value}
142 Get Process ID Based On Regex On Remote System
143 [Arguments] ${system} ${regex_string_to_match_on} ${user}=${MININET_USER} ${password}=${EMPTY} ${prompt}=${DEFAULT_LINUX_PROMPT} ${prompt_timeout}=30s
144 [Documentation] Uses ps to find a process that matches the supplied regex. Returns the PID of that process
145 ... The ${regex_string_to_match_on} should produce a unique process otherwise the PID returned may not be
147 # doing the extra -v grep in this command to exclude the grep process itself from the output
148 ${cmd}= Set Variable ps -elf | grep -v grep | grep ${regex_string_to_match_on} | awk '{print $4}'
149 ${output}= Run Command On Remote System ${system} ${cmd} user=${user} password=${password} prompt=${prompt}
150 ... prompt_timeout=${prompt_timeout}
151 # ${output} contains the system prompt and all we want is the value of the number
152 ${pid}= Fetch From Left ${output} \r
153 # TODO: Get Process * keywords have perhaps non-standard default credentials.
154 # ... Should there be * On Mininet and * On Controller specializations?
157 Get Process Thread Count On Remote System
158 [Arguments] ${system} ${pid} ${user}=${MININET_USER} ${password}=${EMPTY} ${prompt}=${DEFAULT_LINUX_PROMPT} ${prompt_timeout}=30s
159 [Documentation] Executes the ps command to retrieve the lightweight process (aka thread) count.
160 ${cmd}= Set Variable ps --no-headers -o nlwp ${pid}
161 ${output}= Run Command On Remote System ${system} ${cmd} user=${user} password=${password} prompt=${prompt}
162 ... prompt_timeout=${prompt_timeout}
163 # ${output} contains the system prompt and all we want is the value of the number
164 ${thread_count}= Fetch From Left ${output} \r
165 [Return] ${thread_count}
168 [Arguments] ${string_to_strip}
169 [Documentation] Will strip ALL quotes from given string and return the new string
170 ${string_to_return}= Replace String ${string_to_strip} " \ count=-1
171 [Return] ${string_to_return}
174 [Arguments] ${user} ${password}=${EMPTY} ${delay}=0.5s
175 [Documentation] On active SSH session: if given non-empty password, do Login, else do Login With Public Key.
176 ${pwd_length} = BuiltIn.Get Length ${password}
177 # ${pwd_length} is guaranteed to be an integer, so we are safe to evaluate it as Python expression.
178 BuiltIn.Run Keyword And Return If ${pwd_length} > 0 SSHLibrary.Login ${user} ${password} delay=${delay}
179 BuiltIn.Run Keyword And Return SSHLibrary.Login With Public Key ${user} ${USER_HOME}/.ssh/${SSH_KEY} ${KEYFILE_PASS} delay=${delay}
181 Flexible Mininet Login
182 [Arguments] ${user}=${MININET_USER} ${password}=${MININET_PASSWORD} ${delay}=0.5s
183 [Documentation] Call Flexible SSH Login, but with default values suitable for Mininet machine.
184 BuiltIn.Run Keyword And Return Flexible SSH Login user=${user} password=${password} delay=${delay}
186 Flexible Controller Login
187 [Arguments] ${user}=${CONTROLLER_USER} ${password}=${CONTROLLER_PASSWORD} ${delay}=0.5s
188 [Documentation] Call Flexible SSH Login, but with default values suitable for Controller machine.
189 BuiltIn.Run Keyword And Return Flexible SSH Login user=${user} password=${password} delay=${delay}
191 Run Command On Remote System
192 [Arguments] ${system} ${cmd} ${user}=${MININET_USER} ${password}=${EMPTY} ${prompt}=${DEFAULT_LINUX_PROMPT} ${prompt_timeout}=30s
193 [Documentation] Reduces the common work of running a command on a remote system to a single higher level
194 ... robot keyword, taking care to log in with a public key and. The command given is written
195 ... and the output returned. No test conditions are checked.
196 Log Attempting to execute ${cmd} on ${system} by ${user} with ${keyfile_pass} and ${prompt}
197 ${conn_id}= SSHLibrary.Open Connection ${system} prompt=${prompt} timeout=${prompt_timeout}
198 Flexible SSH Login ${user} ${password}
199 SSHLibrary.Write ${cmd}
200 ${output}= SSHLibrary.Read Until ${prompt}
201 SSHLibrary.Close Connection
206 [Documentation] Construct ctrl+c character and SSH-write it (without endline) to the current SSH connection.
207 ... Do not read anything yet.
208 ${ctrl_c}= BuiltIn.Evaluate chr(int(3))
209 SSHLibrary.Write_Bare ${ctrl_c}
211 Run Command On Mininet
212 [Arguments] ${system}=${MININET} ${cmd}=echo ${user}=${MININET_USER} ${password}=${MININET_PASSWORD} ${prompt}=${DEFAULT_LINUX_PROMPT} ${prompt_timeout}=30s
213 [Documentation] Call Run Comand On Remote System, but with default values suitable for Mininet machine.
214 BuiltIn.Run Keyword And Return Run Command On Remote System ${system} ${cmd} user=${user} password=${password} prompt=${prompt}
215 ... prompt_timeout=${prompt_timeout}
217 Run Command On Controller
218 [Arguments] ${system}=${CONTROLLER} ${cmd}=echo ${user}=${CONTROLLER_USER} ${password}=${CONTROLLER_PASSWORD} ${prompt}=${DEFAULT_LINUX_PROMPT} ${prompt_timeout}=30s
219 [Documentation] Call Run Comand On Remote System, but with default values suitable for Controller machine.
220 BuiltIn.Run Keyword And Return Run Command On Remote System ${system} ${cmd} user=${user} password=${password} prompt=${prompt}
221 ... prompt_timeout=${prompt_timeout}
223 Verify File Exists On Remote System
224 [Arguments] ${system} ${file} ${user}=${MININET_USER} ${password}=${MININET_PASSWORD} ${prompt}=${DEFAULT_LINUX_PROMPT} ${prompt_timeout}=5s
225 [Documentation] Will create connection with public key and will PASS if the given ${file} exists,
226 ... otherwise will FAIL
227 ${conn_id}= Open Connection ${system} prompt=${prompt} timeout=${prompt_timeout}
228 Flexible SSH Login ${user} ${password}
229 SSHLibrary.File Should Exist ${file}
232 Verify Controller Is Not Dead
233 [Arguments] ${controller_ip}=${CONTROLLER}
234 [Documentation] Will execute any tests to verify the controller is not dead. Some checks are
235 ... Out Of Memory Execptions.
236 Check Karaf Log File Does Not Have Messages ${controller_ip} java.lang.OutOfMemoryError
237 # TODO: Should Verify Controller * keywords also accept user, password, prompt and karaf_log arguments?
239 Verify Controller Has No Null Pointer Exceptions
240 [Arguments] ${controller_ip}=${CONTROLLER}
241 [Documentation] Will execute any tests to verify the controller is not having any null pointer eceptions.
242 Check Karaf Log File Does Not Have Messages ${controller_ip} java.lang.NullPointerException
246 [Documentation] Get the Epoc time from MM/DD/YYYY HH:MM:SS
247 ${epoch_time}= Convert Date ${time} epoch exclude_milles=True date_format=%m/%d/%Y %H:%M:%S
248 ${epoch_time}= Convert To Integer ${epoch_time}
249 [Return] ${epoch_time}
251 Remove Space on String
252 [Arguments] ${str} ${count}=-1
253 [Documentation] Remove the empty space from given string.count is optional,if its given
254 ... that many occurence of space will be removed from left
255 ${x}= Convert To String ${str}
256 ${x}= Replace String ${str} ${SPACE} ${EMPTY} count=${count}
259 Split Value from String
260 [Arguments] ${str} ${splitter}
261 [Documentation] Split the String based on given splitter and return as list
262 @{x}= Split String ${str} ${splitter}
265 Concatenate the String
266 [Arguments] ${str1} ${str2}
267 [Documentation] Catenate the two non-string objects and return as String
268 ${str1}= Convert to String ${str1}
269 ${str2}= Convert to String ${str2}
270 ${output}= Catenate ${str1} ${str2}
273 Remove All Elements At URI
275 ${resp} RequestsLibrary.Delete session ${uri}
276 Should Be Equal As Strings ${resp.status_code} 200
278 Add Elements To URI From File
279 [Arguments] ${dest_uri} ${data_file}
280 ${body} OperatingSystem.Get File ${data_file}
281 ${resp} RequestsLibrary.Put session ${dest_uri} data=${body} headers=${headers}
282 Should Be Equal As Strings ${resp.status_code} 200
284 Post Elements To URI From File
285 [Arguments] ${dest_uri} ${data_file}
286 ${body} OperatingSystem.Get File ${data_file}
287 ${resp} RequestsLibrary.Post session ${dest_uri} data=${body} headers=${headers}
288 Should Be Equal As Strings ${resp.status_code} 200
290 Run Process With Logging And Status Check
291 [Arguments] @{proc_args}
292 [Documentation] Execute an OS command, log STDOUT and STDERR output and check exit code to be 0
293 ${result}= Run Process @{proc_args}
296 Should Be Equal As Integers ${result.rc} 0