AI Implementation feature(917): Category Icons (#65)

tests/backend/system-category-icons.spec.ts

@@ -0,0 +1,82 @@
+import * as fs from 'fs';
+import * as os from 'os';
+import * as path from 'path';
+import sharp from 'sharp';
+import {
+  CANONICAL_SYSTEM_ICON_KEYS,
+  SYSTEM_ICON_SIZE,
+  seedSystemCategoryIcons,
+} from '../../backend/src/database/system-category-icons';
+
+function makeTempDir(): string {
+  return fs.mkdtempSync(path.join(os.tmpdir(), 'hipctf-icons-'));
+}
+
+describe('seedSystemCategoryIcons', () => {
+  const cleanup: string[] = [];
+
+  afterEach(() => {
+    while (cleanup.length > 0) {
+      const dir = cleanup.pop();
+      if (dir && fs.existsSync(dir)) fs.rmSync(dir, { recursive: true, force: true });
+    }
+  });
+
+  it('writes six 128x128 PNGs into a fresh temp directory', async () => {
+    const dir = makeTempDir();
+    cleanup.push(dir);
+
+    const result = await seedSystemCategoryIcons(dir);
+
+    expect(result.written.length).toBe(CANONICAL_SYSTEM_ICON_KEYS.length);
+    expect(result.skipped.length).toBe(0);
+
+    for (const key of CANONICAL_SYSTEM_ICON_KEYS) {
+      const target = path.join(dir, 'icons', `${key}.png`);
+      expect(fs.existsSync(target)).toBe(true);
+      const stat = fs.statSync(target);
+      expect(stat.size).toBeGreaterThan(0);
+      const meta = await sharp(target).metadata();
+      expect(meta.format).toBe('png');
+      expect(meta.width).toBe(SYSTEM_ICON_SIZE);
+      expect(meta.height).toBe(SYSTEM_ICON_SIZE);
+    }
+  });
+
+  it('is idempotent and does not overwrite an existing admin-uploaded icon', async () => {
+    const dir = makeTempDir();
+    cleanup.push(dir);
+
+    const first = await seedSystemCategoryIcons(dir);
+    expect(first.written.length).toBe(CANONICAL_SYSTEM_ICON_KEYS.length);
+
+    const adminIconPath = path.join(dir, 'icons', 'CRY.png');
+    const adminMtime = fs.statSync(adminIconPath).mtimeMs;
+    await new Promise((r) => setTimeout(r, 25));
+
+    const second = await seedSystemCategoryIcons(dir);
+    expect(second.written.length).toBe(0);
+    expect(second.skipped.length).toBe(CANONICAL_SYSTEM_ICON_KEYS.length);
+
+    expect(fs.statSync(adminIconPath).mtimeMs).toBe(adminMtime);
+    for (const key of CANONICAL_SYSTEM_ICON_KEYS) {
+      const target = path.join(dir, 'icons', `${key}.png`);
+      expect(fs.statSync(target).size).toBeGreaterThan(0);
+    }
+  });
+
+  it('creates the icons subdirectory when the parent directory is empty', async () => {
+    const dir = makeTempDir();
+    cleanup.push(dir);
+
+    const target = path.join(dir, 'icons');
+    expect(fs.existsSync(target)).toBe(false);
+
+    const result = await seedSystemCategoryIcons(dir);
+    expect(result.written.length).toBe(CANONICAL_SYSTEM_ICON_KEYS.length);
+    expect(fs.existsSync(target)).toBe(true);
+    expect(fs.readdirSync(target).sort()).toEqual(
+      [...CANONICAL_SYSTEM_ICON_KEYS].map((k) => `${k}.png`).sort(),
+    );
+  });
+});