import { describe, expect, it } from "vitest";
import { extractSeedanceUsage } from "@/lib/seedance/client";

describe("Seedance usage extraction", () => {
  it("reads completion_tokens from top-level and nested provider responses", () => {
    expect(extractSeedanceUsage({ usage: { completion_tokens: 12345 } })).toEqual({ completionTokens: 12345 });
    expect(extractSeedanceUsage({ data: { usage: { completionTokens: 67890 } } })).toEqual({ completionTokens: 67890 });
    expect(extractSeedanceUsage({ usage: { prompt_tokens: 100 } })).toBeUndefined();
  });
});