throw new Error("DNS failure");

};

const firstFetchCall = (fetchFn: ReturnType<typeof vi.fn<typeof fetch>>) => {

const [call] = fetchFn.mock.calls;

if (!call) {

throw new Error("expected fetch call");

}

return call;

};

// ─── isPrivateOrReservedIP ───────────────────────────────────────────────────

describe("isPrivateOrReservedIP", () => {

});

expect(fetchFn).toHaveBeenCalledOnce();

const [url, opts] = fetchFn.mock.calls[0];

const [url, opts] = firstFetchCall(fetchFn);

expect(url).toBe("https://contoso.sharepoint.com/upload");

expect(opts?.method).toBe("PUT");

expect(opts?.headers).toEqual({

});

it("allows upload to a valid SharePoint URL and performs PUT", async () => {

const mockFetch = vi.fn().mockResolvedValue({ ok: true, status: 200 });

const mockFetch = vi.fn<typeof fetch>(async () => new Response(null, { status: 200 }));

const buffer = Buffer.from("file content");

await uploadToConsentUrl({

});

expect(mockFetch).toHaveBeenCalledOnce();

const [url, opts] = mockFetch.mock.calls[0];

const [url, opts] = firstFetchCall(mockFetch);

expect(url).toBe("https://contoso.sharepoint.com/sites/uploads/file.pdf");

expect(opts.method).toBe("PUT");

expect(opts.headers["Content-Type"]).toBe("application/pdf");

expect(opts?.method).toBe("PUT");

expect(opts?.headers).toEqual(

expect.objectContaining({

"Content-Type": "application/pdf",

}),

);

});

it("throws on non-OK response after passing validation", async () => {