How to pass a list as command line argument in robot framework.?

问题

I am trying to pass a list as a command line argument to a robot script using -v option. Since this is not directly supported i am trying some workaround like,

robot -v list_arg:a__b__c -E space:_ sample.robot

This partly does the job as i can see space separated values when i log them onto console. Like
a b c. However i am unable to iterate over all the list members using FOR.I only see one item("a b c") being iterated.

Is there any other elegant way to pass Lists via command line in robot framework.?

回答1:

Although I don't like it much, I was able to iterate through the list created by Split String from String library.

*** Settings ***
Library    String

*** Test Cases ***
List Of Variables From CLI
    @{list_of_vars}    Split String    ${my_vars}
    :FOR    ${var}    IN    @{list_of_vars}
    \    Log    ${var}    WARN

robot -v my_vars:1_2 -E space:_ -t "List Of Variables From CLI" .

回答2:

When passing data structures to Robot Framework using Variable Files would probably be a better option considering you're already converting one structure into a command line compatible one. Adding a variable file uses the -V c:/path/to/file.ext syntax.

There are roughly two approaches:

Static: this is a text file containing the variable structures you seek. This can be in two formats:
- Python: declare the variable structures using regular Python syntax variable syntax
- YAML: using the YAML syntax it is possble to create Robot Framwork lists, dictionaries and strings.
Dynamic: in this scenario the Robot variables are generated and returned by Python code:
- Simple Python Function: using the get_variables(arg)function is the simplest way of returning a dynamic number of variables or a dynamic structure of data.
- Dynamic Python Class: using a variable class it's possible to hide certain variables, have a fixed set of variables that are complemented by init() based on given input or have all of them generated dynamically.

In most cases the yaml structure is a good way of providing clean way of writing and maintaining an input file:

 string:   Hello, world!
 integer:  42
 list:
  - one
  - two
 dict:
  one: yksi
  two: kaksi
 original: &org
  item1: foo
  item2: bar
 reference
  org: *org

来源：https://stackoverflow.com/questions/44067832/how-to-pass-a-list-as-command-line-argument-in-robot-framework

标签

python

robotframework