feat: media-search with missing_alt and unused filters

Ruling Q8 caps the unused scan at 20 candidates per call (not the brief's 500/50), and each result (search and unused alike) is filtered to attachments the current user may edit; overview.md lists media-search as a direct tool (ruling Q2). Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01At3V6SjwbMe6eMzVGW3Hs7
2026-09-26 02:12:18 +02:00
parent b197d8171f
commit 5099c9fc89
5 changed files with 367 additions and 1 deletions
@@ -0,0 +1,128 @@
+<?php
+
+declare(strict_types=1);
+
+namespace LIT\MCP\Tests\Unit\Integrations\Media;
+
+use Brain\Monkey\Functions;
+use LIT\MCP\Abilities\Cursor;
+use LIT\MCP\Integrations\Media\MediaPresenter;
+use LIT\MCP\Integrations\Media\MediaSearchAbility;
+use LIT\MCP\Integrations\Media\MediaUsageFinder;
+use LIT\MCP\Tests\Unit\TestCase;
+use Mockery;
+use WP_Post;
+
+final class MediaSearchAbilityTest extends TestCase
+{
+    private function presenter(): MediaPresenter
+    {
+        $presenter = Mockery::mock(MediaPresenter::class);
+        $presenter->allows('summary')->andReturnUsing(static fn (WP_Post $a): array => ['id' => $a->ID]);
+
+        return $presenter;
+    }
+
+    /** @return list<WP_Post> */
+    private function attachments(int ...$ids): array
+    {
+        return array_map(static fn (int $id): WP_Post => new WP_Post(['ID' => $id, 'post_type' => 'attachment']), $ids);
+    }
+
+    public function testMissingAltLimitsToImagesWithoutAltText(): void
+    {
+        Functions\when('current_user_can')->justReturn(true);
+        Functions\expect('get_posts')->once()->with(Mockery::on(static fn (array $args): bool =>
+            $args['post_type'] === 'attachment'
+            && $args['post_mime_type'] === 'image'
+            && $args['s'] === 'team'
+            && $args['meta_query'] === [
+                'relation' => 'OR',
+                ['key' => '_wp_attachment_image_alt', 'compare' => 'NOT EXISTS'],
+                ['key' => '_wp_attachment_image_alt', 'value' => '', 'compare' => '='],
+            ]
+            && $args['posts_per_page'] === 21
+            && $args['offset'] === 0))->andReturn($this->attachments(1, 2));
+
+        $result = (new MediaSearchAbility($this->presenter(), Mockery::mock(MediaUsageFinder::class)))
+            ->execute(['search' => 'team', 'missing_alt' => true]);
+
+        self::assertSame([['id' => 1], ['id' => 2]], $result['items']);
+        self::assertNull($result['next_cursor']);
+        self::assertSame([], $result['warnings']);
+    }
+
+    public function testExcludesAttachmentsTheUserCannotEdit(): void
+    {
+        Functions\when('get_posts')->justReturn($this->attachments(1, 2));
+        Functions\when('current_user_can')->alias(static fn (string $cap, int $id): bool => $id !== 2);
+
+        $result = (new MediaSearchAbility($this->presenter(), Mockery::mock(MediaUsageFinder::class)))
+            ->execute([]);
+
+        self::assertSame([['id' => 1]], $result['items']);
+    }
+
+    public function testUnusedFiltersThroughTheUsageFinder(): void
+    {
+        Functions\when('get_posts')->justReturn($this->attachments(1, 2, 3));
+        Functions\when('current_user_can')->justReturn(true);
+        $finder = Mockery::mock(MediaUsageFinder::class);
+        $finder->allows('isUsed')->andReturnUsing(static fn (int $id): bool => $id === 2);
+
+        $result = (new MediaSearchAbility($this->presenter(), $finder))->execute(['unused' => true]);
+
+        self::assertSame([['id' => 1], ['id' => 3]], $result['items']);
+        self::assertNull($result['next_cursor']);
+        self::assertSame([], $result['warnings']);
+    }
+
+    public function testUnusedStopsAtTheLimitWithACursor(): void
+    {
+        Functions\when('get_posts')->justReturn($this->attachments(1, 2, 3));
+        Functions\when('current_user_can')->justReturn(true);
+        $finder = Mockery::mock(MediaUsageFinder::class);
+        $finder->allows('isUsed')->andReturn(false);
+
+        $result = (new MediaSearchAbility($this->presenter(), $finder))->execute(['unused' => true, 'limit' => 1]);
+
+        self::assertSame([['id' => 1]], $result['items']);
+        self::assertSame(1, Cursor::decode($result['next_cursor']));
+    }
+
+    public function testUnusedSkipsAttachmentsTheUserCannotEdit(): void
+    {
+        Functions\when('get_posts')->justReturn($this->attachments(1, 2, 3));
+        Functions\when('current_user_can')->alias(static fn (string $cap, int $id): bool => $id !== 2);
+        $finder = Mockery::mock(MediaUsageFinder::class);
+        $finder->allows('isUsed')->andReturn(false);
+
+        $result = (new MediaSearchAbility($this->presenter(), $finder))->execute(['unused' => true]);
+
+        self::assertSame([['id' => 1], ['id' => 3]], $result['items']);
+        self::assertNull($result['next_cursor']);
+    }
+
+    public function testUnusedWarnsAndPagesWhenTheScanCapIsReached(): void
+    {
+        Functions\when('get_posts')->justReturn($this->attachments(...range(1, 21)));
+        Functions\when('current_user_can')->justReturn(true);
+        $finder = Mockery::mock(MediaUsageFinder::class);
+        $finder->allows('isUsed')->andReturn(true);
+
+        $result = (new MediaSearchAbility($this->presenter(), $finder))->execute(['unused' => true]);
+
+        self::assertSame([], $result['items']);
+        self::assertSame(20, Cursor::decode($result['next_cursor']));
+        self::assertNotSame([], $result['warnings']);
+    }
+
+    public function testRequiresUploadRights(): void
+    {
+        Functions\when('current_user_can')->justReturn(false);
+        $ability = new MediaSearchAbility($this->presenter(), Mockery::mock(MediaUsageFinder::class));
+
+        self::assertSame('lit_forbidden', $ability->permission([])->get_error_code());
+        self::assertTrue($ability->isDirect());
+    }
+}