Module development and code questions

Hi, I am trying create product with images. All is done but, I cannot connect image with product.

We have a node with a single value field that uses Inline Entity Form Simple form widget. This works well for us and we do pre-populate that field in the xxxx-edit-form form_alter. So we just load the node we want to default to and assign it to the the ief widget like this:

$form['field_xxxx']['widget'][0]['inline_entity_form']['#default_value'] = $default_entity;

This works well and the edit form shows the defaulted entity in the ief reference field.

Hi

Im new to Unit Testing in Drupal.
I have an own (very complex) Entity witch I want to Unit test. But no idea how to start.

I want to test the creation and modification of the entity with different users becuase of there different privileges.

But how to start? Moking everything or ceating the real entity ...

Can you give me some hints or maybe lead me to some examples.
I already tried to search in the Drupal Code to find something similar ...

Thanks
 

Many moons ago - too many - I created editable fields. 
I was expecting not to need it in Drupal 9. 

It still, to me, feels like fundamental functionality, to be able to 'display' either the editable, or the rendered version of a field ?

Am I missing something?

Cheers
Mark.

1.     The AllWebMenus Add-in
This already exists inside my AllWebMenus installation.

2.     I cannot Install The Likno JavaScript/CSS Menus Module [allwebmenus-drupal7-menu-module.zip]
on my computer.

I uploaded the entire likno_menus folder to the modules directory.
An upload result of uploading is the message “Failed to get available update data for one project.“

I have a boolean field to update through a callBack (called from another field) but it doesn't work. The text and numeric fields work but the Boolean field does not
This is the code in form_alter

          $form['field_richiedente']['widget']['#ajax'] = [
            'event'           => 'change',
            'disable-refocus' => FALSE,
            'callback'        => 'CBRich',
          ];

#id of the boolean field
$form['field_sede']['widget']['value']['#attributes'] = ['id' => ['vis-sede']];

callback code