woocommerce/plugins/woocommerce-beta-tester/EXTENDING-WC-ADMIN-HELPER.md

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## Extending
There are two client-side filters available if you want to extend the test
helper with your own plugin's test setup code.
This example adds a new tab:
```
import { addFilter } from '@wordpress/hooks';
const SuperSekret = () => (
<>
<h2>Super sekret</h2>
<p>This section contains super sekret tools.</p>
<NewTool/>
</>
);
addFilter(
'woocommerce_admin_test_helper_tabs',
'wath',
( tabs ) => [
...tabs,
{
name: 'super-sekret',
title: 'Super sekret',
content: <SuperSekret/>,
}
]
);
```
This example adds a new tool to the existing Options tab:
```
import { addFilter } from '@wordpress/hooks';
const NewTool = () => (
<>
<strong>New tool</strong>
<p>Description</p>
<button>Execute</button>
</>
);
addFilter(
'woocommerce_admin_test_helper_tab_options',
'wath',
( entries ) => [
...entries,
<NewTool/>
]
);
```
Register a REST API endpoint to perform server-side actions in the usual way:
```
add_action( 'rest_api_init', function() {
register_rest_route(
'your-plugin/v1',
'/area/action',
array(
'methods' => 'POST',
'callback' => 'your_plugin_area_action',
'permission_callback' => function( $request ) {
if ( ! wc_rest_check_manager_permissions( 'settings', 'edit ) ) {
return new \WP_Error(
'woocommerce_rest_cannot_edit',
__( 'Sorry, you cannot perform this action', 'your-plugin' )
);
}
return true;
}
)
);
} );
function your_plugin_area_action() {
return [];
}
```
This would be used on the client like this:
```
import apiFetch from '@wordpress/api-fetch';
...
const response = await apiFetch( {
path: '/your-plugin/v1/area/action',
method: 'POST',
} );
```