Ensuring the Accuracy of JavaScript Tests with JSON Schema Verification

An API I have provides responses in the following format:

[
{"id": 12345,
"value": "some_string",
"practice_id": "12344"},

{"id": 12346,
"value": "some_other_string",
"practice_id": "12345"},
]

I'm currently testing whether the response complies with a specific JSON-Schema, and my schema test looks like this:

response.body.should.have.schema({
        type: 'array',
        required: ['id', 'value', 'practice_id'],
        properties: {
            id: {
                type: 'number',
            },
            value: {
                type: 'string',
            },
            practice_id: {
                type: 'string',
                minLength: 5,
            }            
        }
    });

The problem I'm facing is that the test passes even if I modify the data type of id to string or change the value of practice_id to number, which is incorrect.

What am I missing here? I am utilizing Postman-BDD for validating the responses.

javascriptjsontestingpostmanjsonschema

Answer №1

It appears that your schema may need to be adjusted to align more closely with the following structure:

{
  "type": "array",
  "items":
  {
    "required":
    [
        "id",
        "value",
        "practice_id"
    ],
    "properties":
    {
        "id":
        {
            "type": "number"
        },
        "value":
        {
            "type": "string"
        },
        "practice_id":
        {
            "type": "string",
            "minLength": 5
        }
    }
  }
}

One key aspect that seems to be missing is the inclusion of the "items" keywords in order to accurately define the array content. Additionally, this schema has been found to trigger an error when validating sample data using JSONBuddy: https://i.sstatic.net/58Ug5.png

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