How to write a yaml in python for multiple test cases?

Question

I am learning Robot framework using python. I am looking for ways to pass data to two different test cases. In java, this was easy. I made a class for yaml and gave the data for two separate test cases in the yaml file. How can I have such an architecture in Python? When I try to give the data in yaml file, I am getting duplicate key error. Can someone tell me what I am doing wrong, and also suggest ways to give data to multiple test cases using single yaml? Java_yaml Python_yaml

Answer 1

Are you sure you are getting a duplicate key error? Because with the input you present you'll get a mapping values are not allowed here error:

import sys
import ruamel.yaml

yaml_str = """\
Get_Request
  alias : 'amway1'
  session_url : 'url2'

Post_Request
    alias : 'amway2'
    session_url : 'url2'
"""

yaml = ruamel.yaml.YAML()
try:
    data = yaml.load(yaml_str)
except Exception as e:
    print(e)

which gives:

mapping values are not allowed here
  in "<unicode string>", line 2, column 9:
      alias : 'amway1'
            ^ (line: 2)

This is because you try to use a multi-line plain scalar as the key at the start of that YAML, and those are not allowed (they have to be simple, not multi-line). You probably forgot to insert a colon (:) after the Get_Request and Post_Request.

Get_Request:
  alias : 'amway1'
  session_url : 'url2'

Post_Request:
  alias : 'amway2'
  session_url : 'url2'

(You should also consistently indent your YAML, with the same amount of spaces before the keys, now you have 2 and 4 positions. That is not necessary to make valid YAML, and the parser will accept it, but it is to properly see the structure when humans inspect your input).