test: file-based editor byte-identity regression; filters fixture with JSON escapes (P20)

synthetic-divi-filters.html now stores its paragraph as Divi does (unicode escapes, bytes built with chr(92) and checked with od). A data-provider test inserts a section as a user without unfiltered_html into every Divi 5 fixture page read from disk and asserts that every other byte stays. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
2026-09-27 04:25:53 +02:00
parent 25446d292d
commit f1937ca6ff
2 changed files with 70 additions and 1 deletions
@@ -0,0 +1,69 @@
+<?php
+
+declare(strict_types=1);
+
+namespace LIT\MCP\Tests\Unit\Integrations\Divi\Pages;
+
+use Brain\Monkey\Functions;
+use LIT\MCP\Abilities\Rev;
+use LIT\MCP\Integrations\Divi\BlockTree\NodeIndex;
+use LIT\MCP\Integrations\Divi\BlockTree\Parser;
+use LIT\MCP\Integrations\Divi\BlockTree\Serializer;
+use LIT\MCP\Integrations\Divi\Pages\DiviInsertAbility;
+use LIT\MCP\Tests\Support\DiviFixtures;
+use LIT\MCP\Tests\Support\DiviWriterFixture;
+use LIT\MCP\Tests\Unit\TestCase;
+
+/**
+ * Ruling P20 (regression): a user without unfiltered_html (editor) changes one place of a real page;
+ * every other byte stays (JSON unicode escapes of markup, CRLF, empty block pairs, instances, foreign
+ * blocks). The pages are read from the fixture files only (never written inline), so no tool in
+ * between can decode an escape sequence.
+ */
+final class DiviEditorByteIdentityTest extends TestCase
+{
+    /** @return array<string, array{string}> */
+    public static function pages(): array
+    {
+        $pages = [];
+        foreach (['', 'stage3/'] as $dir) {
+            foreach (glob(dirname(__DIR__, 4) . '/Fixtures/divi/' . $dir . '*.html') ?: [] as $file) {
+                $name = $dir . basename($file);
+                if ($name !== 'divi4-shortcodes.html') {
+                    $pages[$name] = [$name];
+                }
+            }
+        }
+
+        return $pages;
+    }
+
+    /** @dataProvider pages */
+    public function testAnEditorInsertKeepsEveryOtherByte(string $fixture): void
+    {
+        $original = DiviFixtures::markup($fixture);
+        self::assertNotSame('', $original, $fixture);
+        DiviFixtures::givenPost($original);
+        Functions\when('get_preview_post_link')->justReturn('https://kunde.test/?page_id=7&preview=true');
+        $saved = [];
+
+        $result = (new DiviInsertAbility(DiviWriterFixture::writer($saved, unfiltered: false)))->execute([
+            'post_id' => 7,
+            'tree_rev' => Rev::of($original),
+            'nodes' => [['type' => 'section']],
+        ]);
+
+        self::assertTrue($result['ok'] ?? false, $fixture . ': ' . json_encode($result));
+        self::assertCount(1, $saved);
+        $node = NodeIndex::build((new Parser())->parse($saved[0]))->find($result['changed'][0]['id']);
+        self::assertNotNull($node, $fixture);
+        $inserted = Serializer::block($node);
+        $at = strpos($saved[0], $inserted);
+        self::assertNotFalse($at, $fixture);
+        self::assertSame(
+            $original,
+            substr($saved[0], 0, (int) $at) . substr($saved[0], (int) $at + strlen($inserted)),
+            $fixture . ': only the new section was added'
+        );
+    }
+}