httprunner/docs/extraction-and-validation.md

Extraction and Validation

Suppose we get the following HTTP response.

# status code: 200

# response headers
{
    "Content-Type": "application/json"
}

# response body content
{
    "success": False,
    "person": {
        "name": {
            "first_name": "Leo",
            "last_name": "Lee",
        },
        "age": 29,
        "cities": ["Guangzhou", "Shenzhen"]
    }
}

In extract and validate, we can do chain operation to extract data field in HTTP response.

For instance, if we want to get Content-Type in response headers, then we can specify headers.content-type; if we want to get first_name in response content, we can specify content.person.name.first_name.

There might be slight difference on list, cos we can use index to locate list item. For example, Guangzhou in response content can be specified by content.person.cities.0.

# get status code
status_code

# get headers field
headers.content-type

# get content field
body.success
content.success
text.success
content.person.name.first_name
content.person.cities.1

extract:
    - content_type: headers.content-type
    - first_name: content.person.name.first_name
validate:
    - {"check": "status_code", "comparator": "eq", "expected": 200}
    - {"check": "headers.content-type", "expected": "application/json"}
    - {"check": "headers.content-length", "comparator": "gt", "expected": 40}
    - {"check": "content.success", "comparator": "eq", "expected": True}
    - {"check": "content.token", "comparator": "len_eq", "expected": 16}