New classes for testing ElementalArea in DataObject

_config/extensions.yml

@@ -8,6 +8,11 @@ SilverStripe\Assets\File:
   extensions:
     - BasicFieldsTestFileExtension
 
+SilverStripe\FrameworkTest\Model\TestBlogPost:
+  extensions:
+    - DNADesign\Elemental\Extensions\ElementalAreasExtension
+    - SilverStripe\FrameworkTest\Extension\TestBlogPostExtension
+
 ---
 Only:
   classexists: 'DNADesign\Elemental\Extensions\ElementalPageExtension'

code/TestBlogPost.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace SilverStripe\FrameworkTest\Model;
+
+use SilverStripe\FrameworkTest\Admin\TestBlogPostsAdmin;
+use SilverStripe\Control\Controller;
+use SilverStripe\ORM\DataObject;
+
+class TestBlogPost extends DataObject
+{
+    private static string $table_name = 'TestBlogPost';
+
+    public function CMSEditLink()
+    {
+        $admin = TestBlogPostsAdmin::singleton();
+        $sanitisedClassname = str_replace('\\', '-', $this->ClassName);
+
+        return Controller::join_links(
+            $admin->Link($sanitisedClassname),
+            'EditForm/field/',
+            $sanitisedClassname,
+            'item',
+            $this->ID,
+        );
+    }
+}

code/TestBlogPostExtension.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace SilverStripe\FrameworkTest\Extension;
+
+use DNADesign\Elemental\Models\ElementalArea;
+use SilverStripe\ORM\DataExtension;
+
+class TestBlogPostExtension extends DataExtension
+{
+    private static $has_one = [
+        'ElementalArea' => ElementalArea::class,
+    ];
+
+    private static $owns = ['ElementalArea'];
+}

code/TestBlogPostsAdmin.php

@@ -0,0 +1,17 @@
+<?php
+
+namespace SilverStripe\FrameworkTest\Admin;
+
+use SilverStripe\Admin\ModelAdmin;
+use SilverStripe\FrameworkTest\Model\TestBlogPost;
+
+class TestBlogPostsAdmin extends ModelAdmin
+{
+    private static string $url_segment = 'test-blog-posts-admin';
+    private static string $menu_title = 'Blog Posts';
+    private static string $menu_icon_class = 'font-icon-block-banner';
+
+    private static array $managed_models = [
+        TestBlogPost::class,
+    ];
+}