test: tighten together video request assertions

extensions/together/video-generation-provider.test.ts

@@ -15,6 +15,13 @@ beforeAll(async () => {
 
 installProviderHttpMockCleanup();
 
+function requireRecord(value: unknown, label: string): Record<string, unknown> {
+  if (value === null || typeof value !== "object" || Array.isArray(value)) {
+    throw new Error(`expected ${label} to be a record`);
+  }
+  return value as Record<string, unknown>;
+}
+
 describe("together video generation provider", () => {
   it("declares explicit mode capabilities", () => {
     expectExplicitVideoGenerationCapabilities(buildTogetherVideoGenerationProvider());
@@ -51,21 +58,22 @@ describe("together video generation provider", () => {
       cfg: {},
     });
 
-    expect(postJsonRequestMock).toHaveBeenCalledWith(
-      expect.objectContaining({
-        url: "https://api.together.xyz/v1/videos",
-      }),
-    );
+    expect(postJsonRequestMock).toHaveBeenCalledOnce();
+    const request = requireRecord(postJsonRequestMock.mock.calls[0]?.[0], "Together request");
+    expect(request.url).toBe("https://api.together.xyz/v1/videos");
+    const body = requireRecord(request.body, "Together request body");
+    expect(body.model).toBe("Wan-AI/Wan2.2-T2V-A14B");
+    expect(body.prompt).toBe("A bicycle weaving through a rainy neon street");
     expect(result.videos).toHaveLength(1);
     const [video] = result.videos;
     if (!video) {
       throw new Error("Expected generated Together video");
     }
     expect(video.fileName).toBe("video-1.webm");
-    expect(result.metadata).toEqual(
-      expect.objectContaining({
-        videoId: "video_123",
-      }),
-    );
+    expect(result.metadata).toEqual({
+      videoId: "video_123",
+      status: "completed",
+      videoUrl: "https://example.com/together.mp4",
+    });
   });
 });