feat: SnapshotStore – Snapshots des Designsystems je Bereich

Co-Authored-By: Claude Haiku 5.5 <noreply@anthropic.com>

tests/Unit/Integrations/Divi/Design/SnapshotStoreTest.php

@@ -0,0 +1,96 @@
+<?php
+
+declare(strict_types=1);
+
+namespace LIT\MCP\Tests\Unit\Integrations\Divi\Design;
+
+use Brain\Monkey\Functions;
+use InvalidArgumentException;
+use LIT\MCP\Integrations\Divi\Design\SnapshotStore;
+use LIT\MCP\Integrations\Divi\Design\SnapshotTooLarge;
+use LIT\MCP\Tests\Unit\TestCase;
+use RuntimeException;
+
+final class SnapshotStoreTest extends TestCase
+{
+    /** @var array<string, mixed> */
+    private array $options = [];
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+        $this->options = [];
+        Functions\when('get_option')->alias(fn (string $name, mixed $default = false): mixed => $this->options[$name] ?? $default);
+        Functions\when('update_option')->alias(function (string $name, mixed $value, mixed $autoload = null): bool {
+            self::assertFalse($autoload, 'snapshots are never autoloaded');
+            $this->options[$name] = $value;
+
+            return true;
+        });
+        Functions\when('get_current_user_id')->justReturn(7);
+    }
+
+    public function testSavesListsAndReturnsTheNewestFirst(): void
+    {
+        $store = new SnapshotStore();
+        $first = $store->save('presets', ['module' => ['a' => 1]], 'lit/divi-presets-set');
+        $second = $store->save('presets', ['module' => ['a' => 2]], 'lit/divi-presets-set');
+        $store->attachLog('presets', $second, 42);
+
+        self::assertSame('lit_mcp_snapshots_presets', SnapshotStore::option('presets'));
+        self::assertMatchesRegularExpression('/^presets-\d{8}T\d{6}Z-[0-9a-f]{6}$/', $first);
+        $list = $store->list('presets');
+        self::assertSame([$second, $first], array_column($list, 'id'));
+        self::assertSame(42, $list[0]['log_id']);
+        self::assertSame(7, $list[0]['user_id']);
+        self::assertArrayNotHasKey('data', $list[0]);
+        self::assertSame(['module' => ['a' => 1]], $store->get('presets', $first)['data']);
+        self::assertNull($store->get('presets', 'presets-unknown'));
+        self::assertSame([], $store->list('colors'));
+    }
+
+    public function testKeepsAtMostTwentyPerArea(): void
+    {
+        $store = new SnapshotStore();
+        $ids = [];
+        for ($i = 0; $i < 22; ++$i) {
+            $ids[] = $store->save('presets', ['n' => $i], 'lit/divi-presets-set');
+        }
+
+        $list = $store->list('presets');
+        self::assertCount(SnapshotStore::LIMIT, $list);
+        self::assertSame($ids[21], $list[0]['id']);
+        self::assertNull($store->get('presets', $ids[0]));
+        self::assertNull($store->get('presets', $ids[1]));
+    }
+
+    public function testRefusesSnapshotsAboveTheLimit(): void
+    {
+        $this->expectException(SnapshotTooLarge::class);
+
+        (new SnapshotStore())->save('presets', ['x' => str_repeat('a', SnapshotStore::MAX_BYTES)], 'lit/divi-presets-set');
+    }
+
+    public function testUnknownAreaIsAProgrammingError(): void
+    {
+        $this->expectException(InvalidArgumentException::class);
+
+        SnapshotStore::option('pages');
+    }
+
+    public function testAFailedOptionWriteThrows(): void
+    {
+        Functions\when('update_option')->justReturn(false);
+        $this->expectException(RuntimeException::class);
+        $this->expectExceptionMessage('snapshot presets could not be stored');
+
+        (new SnapshotStore())->save('presets', ['a' => 1], 'lit/divi-presets-set');
+    }
+
+    public function testCorruptOptionReadsAsEmpty(): void
+    {
+        $this->options['lit_mcp_snapshots_presets'] = 'kaputt';
+
+        self::assertSame([], (new SnapshotStore())->list('presets'));
+    }
+}

tests/Unit/UninstallTest.php

@@ -55,6 +55,8 @@ final class UninstallTest extends TestCase
         $own = [
             Access::OPTION, ExposurePolicy::OPTION, Limits::OPTION, ChangeLogInstaller::VERSION_OPTION,
             ReleaseStore::OPTION, CheckReportStore::OPTION, DiviCheckRoute::LOCK,
+            'lit_mcp_snapshots_colors', 'lit_mcp_snapshots_variables', 'lit_mcp_snapshots_presets',
+            'lit_mcp_snapshots_theme_options',
         ];
         self::assertSame(array_merge($own, $own), $deleted);
         self::assertNotContains('mcp_jwt_secret', $deleted);

tests/Unit/UninstallerTest.php

@@ -61,6 +61,8 @@ final class UninstallerTest extends TestCase
             [
                 Access::OPTION, ExposurePolicy::OPTION, Limits::OPTION, ChangeLogInstaller::VERSION_OPTION,
                 ReleaseStore::OPTION, CheckReportStore::OPTION, DiviCheckRoute::LOCK,
+                'lit_mcp_snapshots_colors', 'lit_mcp_snapshots_variables', 'lit_mcp_snapshots_presets',
+                'lit_mcp_snapshots_theme_options',
             ],
             $deleted
         );