CODEWITHSUNDEEP
karate
zwanchi101
zwanchi101

Reputation: 181

How to assert a value within an array which is not always returned in response

abit of a tricky one and i'll attempt to explain it as clearly as possible.

Schema: 

    "dogs": {
        "dogId": "string",
        "breed": [
            {
                "canaan": true,
                "akita": false
            }
        ]
    }
}

Response:

{
    "dogs": {
        "dogId": "70872490",
        "breed": []
    }
}

Feature File: 

[...] 

    And match each response.dogs contains
"""
    {
        "dogId": "##regex ^[0-9A-Za-z]*$",
        "breed": [
            {
                "canaan": "##boolean",
                "akita": "##boolean"
            }
        ]
    }
"""

Error:

path: $[0].breed[*], actual: [], expected: {canaan=##string, akita=##string}, reason: actual value does not contain expected

As you can see from the above, the breed array sometimes doesn't return any values and at times and at other times, the array may be populated with canaan or akita values. What is the most elegant way to assert this kind of behaviour? I have tried optional assertions but it seems to always expect the array value to be present.

Let me know your thoughts, any support is appreciated. Thanks!

Upvotes: 0

Views: 70

Answers (1)

Neodawn
Neodawn

Reputation: 1096

Sample Code:

Feature: Validation

    Scenario:
        * def isValid = function(x){ return x == "[]" || karate.match(x,karate.valuesOf([{"canaan":"#boolean","akita":"#boolean"}])).pass }    
        * def schema =
            """
            {
                "dogs": {
                        "dogId": "##regex ^[0-9A-Za-z]*$",
                        "breed": '#? isValid(_)'
                }
            }
            """         
        * def resp1 =
        """
            {
                "dogs": {
                    "dogId": "70872490",
                    "breed": []
                }
            }
        """
        * def resp2 =
        """
            {
                "dogs": {
                    "dogId": "70872490",
                    "breed": [
                            {
                                "canaan": true,
                                "akita": false
                            }
                        ]
                }
            }
        """
        * match resp1 == schema
        * match resp2 == schema

Upvotes: 1

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