});

it("passes freshness to Gemini Google Search grounding as a time range", async () => {

vi.useFakeTimers();

vi.useFakeTimers({ toFake: ["Date"] });

// Use a wall-clock-realistic moment with non-zero milliseconds; the helper

// must strip them to avoid Gemini's "Granularity of nano is not supported".

vi.setSystemTime(new Date("2026-04-15T12:00:00.123Z"));

});

it("strips sub-second precision from freshness timestamps so Gemini accepts them", async () => {

vi.useFakeTimers();

vi.useFakeTimers({ toFake: ["Date"] });

// "now" with non-zero milliseconds. Without stripping, toISOString() emits

// "2026-04-15T12:00:00.123Z", which Gemini's google_search.time_range_filter

// rejects with "Granularity of nano is not supported".