test(baoyu-danger-gemini-web): cover generated image response fallback

skills/baoyu-danger-gemini-web/scripts/gemini-webapi/client.test.ts

@@ -0,0 +1,25 @@
+import assert from "node:assert/strict";
+import test from "node:test";
+
+import { collect_generated_image_urls_from_response_parts } from "./client.ts";
+
+test("response part fallback finds generated images when legacy generated markers are absent", () => {
+  const generatedUrl = "https://lh3.googleusercontent.com/gg-dl/example-generated-image";
+  const initialCandidate = ["rcid-1", ["image generated successfully"]];
+  const imageCandidate = [
+    "rcid-1",
+    ["image generated successfully"],
+    { nestedPayload: [{ media: generatedUrl }] },
+  ];
+  const responseJson = [
+    ["wrb.fr", null, JSON.stringify([null, [], null, null, [initialCandidate]])],
+    ["wrb.fr", null, JSON.stringify([null, [], null, null, [imageCandidate]])],
+  ];
+
+  assert.equal(initialCandidate[12], undefined);
+  assert.equal(
+    /http:\/\/googleusercontent\.com\/image_generation_content\/\d+/.test(String(initialCandidate[1]?.[0])),
+    false,
+  );
+  assert.deepEqual(collect_generated_image_urls_from_response_parts(responseJson, 0, 0), [generatedUrl]);
+});