AI Implementation feature(859): Admin Area General Settings and Categories (#21)

tests/backend/admin-icon-normalize.spec.ts

@@ -0,0 +1,28 @@
+import sharp from 'sharp';
+
+describe('Category icon normalization (sharp 128x128 pipeline)', () => {
+  it('produces a 128x128 PNG from a larger source', async () => {
+    const big = await sharp({
+      create: { width: 500, height: 500, channels: 3, background: { r: 100, g: 50, b: 200 } },
+    })
+      .png()
+      .toBuffer();
+    const out = await sharp(big).resize(128, 128, { fit: 'cover' }).png().toBuffer();
+    const meta = await sharp(out).metadata();
+    expect(meta.width).toBe(128);
+    expect(meta.height).toBe(128);
+    expect(meta.format).toBe('png');
+  });
+
+  it('produces a 128x128 PNG even when the source is smaller than 128', async () => {
+    const tiny = await sharp({
+      create: { width: 16, height: 16, channels: 3, background: { r: 0, g: 255, b: 0 } },
+    })
+      .png()
+      .toBuffer();
+    const out = await sharp(tiny).resize(128, 128, { fit: 'cover' }).png().toBuffer();
+    const meta = await sharp(out).metadata();
+    expect(meta.width).toBe(128);
+    expect(meta.height).toBe(128);
+  });
+});