Allow file-less test execution when using jsnapy as a library

[Mierdin]

From what I can tell after an admittedly brief look, it seems that only config data can be passed into the jsnapy Python API.

Would be nice to also be able to pass in test data as a dictionary, so I don't have to create any files at all when interacting at the Python level only

[sidhujasminder]

@Mierdin You mean like we pass the config data as follows, we should also do the same for testfiles?

config_data = """
hosts:
  - device: 1.1.1.1
    username : demo 
    passwd: demo123
tests:
  - test_is_equal.yml
"""

Somewhat like:

test_is_equal="""
test_interfaces_terse:
  - command: show interfaces terse lo*  
  - iterate:
      id: ./name
      xpath: //physical-interface
      tests:
        - is-equal: admin-status, up
          info: "Test Succeeded !! admin-status of interface <{{post['name']}}> is equal to <{{post['admin-status']}}> with oper-status <{{ pre['oper-status'] }}>"
          err: "Test Failed !! admin-status of interface <{{ post['name'] }}> is not equal to down, it is <{{post['admin-status']}}> with oper-status <{{pre['oper-status']}}>"
"""

[Mierdin]

In general yes - though I would highly recommend these parameters are accepted as dictionaries, not strings.