Reusable Test Callable

Some time you want to execute the same set of test on different source of data. You have a method that return you a user and one that return you a list of users. You can simply create a class that as all the test inside of it.

Example: Class Callable

<?php\nnamespace Your\Project\Name;\nuse Draw\DataTester\Tester;
class UserDataTester
{
    public function __invoke(Tester $tester)
    {
        $tester->path('firstName')->assertInternalType('string');
        $tester->path('active')->assertInternalType('boolean');
        $tester->ifPathIsReadable(
            'referral',
            function (Tester $tester) {
                $tester->assertInternalType('string');
            }
        );
    }
}

And now you can use it to test the data of one user:

Example: Test With Class Callable

$user = (object)[
    'firstName' => 'Martin',
    'active' => true,
    'referral' => 'Google'
];

(new Tester($user))
    ->test(new UserDataTester());

Or with each in case of a list of users:

Example: Each With Class Callable

$users = [
    (object)[
        'firstName' => 'Martin',
        'active' => true,
        'referral' => 'Google'
    ],
    (object)[
        'firstName' => 'Julie',
        'active' => false
    ]
];

(new Tester($users))
    ->each(new UserDataTester());