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/*
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DEVELOPMENT:
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pnpm test ./time.test.ts
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*/
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import { timeClient, createTimeService } from "@cocalc/conat/service/time";
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import time, { getSkew } from "@cocalc/conat/time";
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import { before, after } from "@cocalc/backend/conat/test/setup";
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beforeAll(before);
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describe("get time from conat", () => {
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  it("tries to get the time before the skew, so it is not initialized yet", () => {
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    expect(time).toThrow("clock skew not known");
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  });
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  it("gets the skew, so that time is initialized", async () => {
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    const skew = await getSkew();
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    expect(Math.abs(skew)).toBeLessThan(1000);
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  });
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  it("gets the time, which should be close to our time on a test system", () => {
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    // times in ms, so divide by 1000 so expecting to be within a second
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    expect(time() / 1000).toBeCloseTo(Date.now() / 1000, 0);
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  });
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  it("time is a number", () => {
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    expect(typeof time()).toBe("number");
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  });
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});
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describe("start the time server and client and test that it works", () => {
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  it("starts the time server and queries it", async () => {
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    createTimeService();
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    const client = timeClient();
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    const t = await client.time();
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    expect(Math.abs(Date.now() - t)).toBeLessThan(200);
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  });
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});
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afterAll(after);
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