Purpose of this commit is to improve and add tools, methods and data to test
mail and SMS features. We also add tests for current implementation of SMS
feature, allowing to better understand future changes.
[ADD] test_mail_full
* have a module depending on mail sub-applications like sms or snailmail.
Its purpose is to check that standard mail features work effectively with
all overrides and extra behaviors activated;
* add a new model specific for SMS gateway, with default recipient
computation;
* add SMS tests for SMS module adding SMS capabilities linked to mail
feature. This commit tests SMS feature before the upcoming refactoring
and improvement of SMS module in community: posting with SMS and sms
composer usage;
In test_mail
* add necessary mobile information on test partners;
* improve assertBusNotification that was not correctly asserting all items
in message of bus notifications;
In sms
* add mock for SMS sending. Purpose is to mock the connection to IAP
services by mocking the call to IAP server. It allows to perform SMS
tests without having to contact (and pay) for this service;
* allow some customization when calling the SMS gateway mock to simulate
errors and test corner cases;
Related to task 1922163
Linked to PR #34516