feat: release authentication diagnostics 0.2.0

tests/qr/decoder.test.ts

@@ -0,0 +1,40 @@
+import { afterEach, describe, expect, it, vi } from "vitest";
+import { decodeQrImage } from "../../src/qr/decoder";
+
+describe("QR image decoding", () => {
+  afterEach(() => vi.unstubAllGlobals());
+
+  it("uses native QR detection when available and closes the bitmap", async () => {
+    const close = vi.fn();
+    vi.stubGlobal(
+      "createImageBitmap",
+      vi.fn().mockResolvedValue({ width: 128, height: 128, close }),
+    );
+    vi.stubGlobal(
+      "BarcodeDetector",
+      class {
+        async detect() {
+          return [
+            { rawValue: "otpauth://totp/Example?secret=JBSWY3DPEHPK3PXP" },
+          ];
+        }
+      },
+    );
+    await expect(
+      decodeQrImage(new File([new Uint8Array(10)], "qr.png")),
+    ).resolves.toMatch(/^otpauth:/u);
+    expect(close).toHaveBeenCalledOnce();
+  });
+
+  it("rejects oversized dimensions before pixel extraction", async () => {
+    const close = vi.fn();
+    vi.stubGlobal(
+      "createImageBitmap",
+      vi.fn().mockResolvedValue({ width: 4097, height: 1, close }),
+    );
+    await expect(
+      decodeQrImage(new File([new Uint8Array(10)], "huge.png")),
+    ).rejects.toThrow(/dimensions/iu);
+    expect(close).toHaveBeenCalledOnce();
+  });
+});