Evaluating keyword inside a for loop in robot framework - robotframework

I am trying to use "exit for loop" in checking an Api availability
sleep till Rest api
FOR ${i} IN RANGE 20
Sleep 5s till rest api is available
Exit For Loop If Rest Api == True
Log to Console try again in 5 sec
END
When I try to execute this the exit for loop statement fails to recognise the Rest Api as another keyword and it throws an error like " no keyword named Exit For Loop If Rest Api ". Can we evaluate a keyword to exit from for loop instead of just variables?

Can we evaluate a keyword to exit from for loop instead of just variables?
No, you can't. The documentation clearly states that Exit for loop if requires a boolean expression. You will need to call the keyword first and save the result. You can then use the result as the expression.

Related

Kernel cancelling a `input_request` at the end of the execution of a cell

I'm implementing a new Go kernel, using directly the ZMQ messages. But as an extra I want it to execute any bash command when a line is prefixed with !, similar to the usual ipython kernel.
One of the tricky parts seems to be bash scripts that take input -- there is no way (that I know of) to predict when I need to request input. So I took the following approach:
Whenever I execute a bash script, if it hasn't ended after 500ms (configurable), it issues an input_request.
If the kernel receives any input back (input_reply message), it writes the contents to the bash program's piped stdin (concurrently, not to block), and immediately issues another input_request.
Now at the end of the execution of the bash program, there is always the last input_request pending, and the corresponding widget expecting input from the user.
Jupyter doesn't drop the input_request after the execution of the cell ended, and requires the user to type enter and send an input_reply before another cell can be executed. It complains with "Cell not executed due to pending input"
Is there a way to cancel the input_request (the pending input) if the execution of the last cell already finished ?
Maybe there is some undocumented message that can be send once the bash program ends ?
Any other suggested approach ?
I know something similar works in colab.research.google.com, if I do:
!while read ii; do if [[ "${ii}" == "done" ]] ; then exit 0; fi ; echo "Input: $ii"; done
It correctly asks for inputs, and closes the last one.
But I'm not sure how that is achieved.
Jupyter's ipython notebook doesn't seem to have that smarts though, at least here the line above just locks. I suppose it never sends a input_request message.
many thanks in advance!

For Loop is not looping untill the given range in robot framework

sleep till Rest api
FOR ${i} IN RANGE 20
Sleep 5s till rest api is available
${result} = Check Rest Api
Exit For Loop If ${result} == True
Log to Console try again in 5 sec
END
I am using For loop to sleep for some time until the api is available and exit from loop once it has got the response. For this I had stored the result of the keyword in a varibale and gave exit from loop when result becomes true. But, whats happening is first it waits for 5 seconds and checks the result and fails. After failing once it is not iterating and fails at checking the result itself.
Here when it goes through the second line in for loop ( ${result} = Check Rest Api ). The sleep time is not sufficient and it fails at that statement itself. What I am expecting is the loop should continue until it gets the response.

How do I find if a variable has been defined?

How do I find out if a variable has been defined in my Robot Framework script? I am doing API testing, not UI testing. I have a complex set up and tear-down sequence and, since I am interacting with multiple computers through the script, it is important to know the current state if a fatal error has occurred. I could track what I have done with some complex set of meta variables or a variable tracking list, but I would prefer to query if a particular variable has been defined and if so take the appropriate tear-down steps.
A simplified version is something like:
*** Test Cases ***
Check monitor
${monitored}= Connect to Monitor ${Monitor IP Address} ${User name} ${password}
${peer connected}= Connect to Monitor ${Peer IP Address} ${User name} ${password}
Get Information from Monitor ${IP Address}
Send Info to Peer ${buffer1}
Report back to Monitor ${Monitor IP Address}
We are assuming that the tear-down closes the connections. I want to close any connections that are open, but if I failed to open the peer connection I will close the monitor connection and fail on closing the monitor connection.
I am trying to determine if ${peer connected} is defined. Can I look into Robot Framework's variable storage to see if it is there (in that dictionary?)?
You can call Get Variables to get a dictionary of all variables, then check whether the variable you're interested in is in the dictionary.
*** Test cases ***
Example
${foo}= set variable hello, world
${variables}= Get variables
Should be true "\${foo}" in $variables
Should not be true "\${bar}" in $variables
There a pretty straightforward approach - the built-in keyword Get Variable Value returns python's None (by default) if there is no such variable defined:
${the var}= Get Variable Value ${peer connected}
${is set}= Set Variable If """${the var}""" != 'None' ${True} ${False}
I am fine with this approach. In case the variable is not defined, the test case does not fail....
${variables} Get variables
${status} Run Keyword And Return Status Evaluate $new_table in $variables
${new_table} Set variable if ${status}==${FALSE} new_tbl ${new_table}
Also possible is:
${variables} Get Variables
IF "\${dataPluginVersion}" in "${variables}"
No Operation
ELSE
${dataPluginVersion} Set Variable 0
END
Or:
${variables} Get Variables
IF not "\${dataPluginVersion}" in "${variables}"
${dataPluginVersion} Set Variable 0
END
A shorter way:
OEM-T01-99-Test-variables
[Tags] TEST
Variable Should Not Exist \${TESTDEVICE_SSH_CONNECTION}
Variable Should Exist \${TEST_NAME}
This method is more readable and less verbose than using "Get Variables" keyword, IMHO
Reference: Robotframework built-in keywords

tSQLt - How to output a custom failure or success message?

We are using the tSQLt framework and have the below code in the test.
IF #count>0
EXEC tsqlt.fail;
else EXEC tSQLt.AssertEquals 1,1;
I am interested to know how we can display a custom test success or failure message when this test gets executed?
tSQLt.fail takes up to 10 parameters that all get concatenated into a custom failure message.
You also do not need the call to tSQLt.AssertEquals as it, in your case, literally does nothing.
BTW, asserting a count is in almost all cases a bad idea, as it does not really tell you anything about the result. If you get the correct count back, you could still have wrong data. And if you get the incorrect count, you don't have any additional info on what went wrong.
Have a look at tSQLt.AssertEqualsTable or tSQLt.AssertEmptyTable instead.

How to write python function to test the matched strings (to use for Robot framework keyword)?

I am writing a custom library for robot framework in python. I don't want to use builtin library for some reasons.
My python code :
import os
import re
output = "IP address is 1.1.1.1"
def find_ip():
cmd = 'ipconfig'
output = os.popen(cmd).read()
match1 = re.findall('.* (1.1.1.1).*',output)
mat1 = ['1.1.1.1']
if match1 == mat1:
print "PASS"
In the above program I have written python function to :
Execute a windows command "ipconfig"
Written regular expression to match 1.1.1.1
create a list variable, mat1 = ['1.1.1.1']
Now I want to put condition like, if "match1" and "mat1" are equal my TEST should PASS. else it should fail in Robot framework.
Any one please give idea on how to write python function for this purpose?
Please note I dont want to use "Should Match Regexp" keyword in Robot Framework. Because I know it will do the same whatever I am asking.
To make a keyword pass, you don't need to do anything except return normally to the caller. To fail, you need to raise an exception:
def find_ip():
...
if match1 != mat1:
raise Exception('expected the matches to be similar; they are not")
This is documented in the robot user guide in the section Returning Keyword Status:
Reporting keyword status is done simply using exceptions. If an
executed method raises an exception, the keyword status is FAIL, and
if it returns normally, the status is PASS.
The error message shown in logs, reports and the console is created
from the exception type and its message. With generic exceptions (for
example, AssertionError, Exception, and RuntimeError), only the
exception message is used, and with others, the message is created in
the format ExceptionType: Actual message.

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