feat: {{link:ID}} placeholder via Divi's post_link_url dynamic content

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

tests/Unit/Integrations/Divi/Pages/DiviCompositionTest.php

@@ -37,7 +37,14 @@ final class DiviCompositionTest extends TestCase
             return DiviFixtures::dynamicContentRegistry();
         });
 
-        return new DiviComposition($modules, $design, ComposeFixture::sanitizer(), ComposeFixture::media(), $registry);
+        return new DiviComposition(
+            $modules,
+            $design,
+            ComposeFixture::sanitizer(),
+            ComposeFixture::media(),
+            $registry,
+            ComposeFixture::links()
+        );
     }
 
     private static function siteTitle(): string
@@ -74,6 +81,24 @@ final class DiviCompositionTest extends TestCase
         self::assertSame($composition->references(), $composition->references());
     }
 
+    /** E13a: the composition hands its link targets to Placeholders; the result still passes ValueCleaner. */
+    public function testInternalLinksUseTheLinkTargets(): void
+    {
+        $composer = $this->composition()->forPost(7)->composer();
+
+        $column = Block::create('divi/column');
+
+        $page = $composer->compose([['type' => 'button', 'text' => 'Kontakt', 'url' => '{{link:839}}']], $column, 'nodes');
+        self::assertSame([], $page['errors']);
+        self::assertStringContainsString(
+            'post_link_url_page',
+            json_encode($page['blocks'][0]->attrs(), JSON_THROW_ON_ERROR)
+        );
+
+        $missing = $composer->compose([['type' => 'button', 'url' => '{{link:999}}']], $column, 'nodes');
+        self::assertStringContainsString('Eintrag 999', $missing['errors']['nodes[0].url']);
+    }
+
     public function testWithoutAPostTheDefaultMapApplies(): void
     {
         $composition = $this->composition();

tests/Unit/Integrations/Divi/Pages/WpLinkTargetsTest.php

@@ -0,0 +1,37 @@
+<?php
+
+declare(strict_types=1);
+
+namespace LIT\MCP\Tests\Unit\Integrations\Divi\Pages;
+
+use Brain\Monkey\Functions;
+use LIT\MCP\Integrations\Divi\Pages\WpLinkTargets;
+use LIT\MCP\Tests\Unit\TestCase;
+use WP_Post;
+
+final class WpLinkTargetsTest extends TestCase
+{
+    public function testOnlyReadableLivingPostsCanBeLinked(): void
+    {
+        $posts = [
+            839 => new WP_Post(['ID' => 839, 'post_type' => 'page', 'post_status' => 'draft']),
+            841 => new WP_Post(['ID' => 841, 'post_type' => 'page', 'post_status' => 'trash']),
+            842 => new WP_Post(['ID' => 842, 'post_type' => 'page', 'post_status' => 'private']),
+            843 => new WP_Post(['ID' => 843, 'post_type' => 'revision', 'post_status' => 'inherit']),
+            844 => new WP_Post(['ID' => 844, 'post_type' => 'page', 'post_status' => 'auto-draft']),
+        ];
+        Functions\when('get_post')->alias(static fn (int $id): ?WP_Post => $posts[$id] ?? null);
+        Functions\when('current_user_can')->alias(
+            static fn (string $cap, int $id): bool => $cap === 'read_post' && $id !== 842
+        );
+
+        $links = new WpLinkTargets();
+
+        self::assertSame('page', $links->postTypeOf(839));
+        self::assertNull($links->postTypeOf(841), 'trashed');
+        self::assertNull($links->postTypeOf(842), 'not readable');
+        self::assertNull($links->postTypeOf(843), 'revision');
+        self::assertNull($links->postTypeOf(844), 'auto-draft');
+        self::assertNull($links->postTypeOf(900), 'missing');
+    }
+}