Call

• Call(callable_fun: Any, rule: AbstractRule)

Validates the return of a callable for a given input.

Consider the following variable:

url = 'https://www.google.com/search?q=respect.github.com'

To validate every part of this URL we could use urlparse function to break its parts:

from urllib.parse import urlparse
parts = urlparse(url)

This function returns an object ParseResult containing scheme, netloc, path and query. We can validate them this way:

v.attribute('scheme', v.startsWith('http'))\
    .attribute('netloc', v.domain())\
    .attribute('path', v.stringType())\
    .attribute('query', v.notEmpty())\
    .validate(parts)

Using v.call() you can do this in a single chain:

v.call(
    urlparse,
    v.attribute('scheme', v.startsWith('http'))\
        .attribute('host',   v.domain())\
        .attribute('path',   v.stringType())\
        .attribute('query',  v.notEmpty())\
).validate(url)

Categorization

• Callables
• Nesting

Changelog

Version	Description
1.0.0	Created

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See also:

• Callback
• Each