68 lines
1.9 KiB
TypeScript
68 lines
1.9 KiB
TypeScript
import { describe, expect, it } from "vitest";
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import {
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compareDateDesc,
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defaultPeriod,
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isValidPeriod,
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moscowDate,
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} from "./calendar";
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import { calendarDate } from "./calendar.schema";
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describe("calendar dates", () => {
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it.each([
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["0000-02-29", true],
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["0001-01-01", true],
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["0099-12-31", true],
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["1900-02-29", false],
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["2000-02-29", true],
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["2024-02-29", true],
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["2026-02-29", false],
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["2026-99-99", false],
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["2026-1-01", false],
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["", false],
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])("validates %s without Date normalization", (value, valid) => {
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expect(calendarDate.safeParse(value).success).toBe(valid);
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});
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it("accepts open or single-day periods and rejects reversed ranges", () => {
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expect(isValidPeriod(null, null)).toBe(true);
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expect(isValidPeriod(null, "2026-09-01")).toBe(true);
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expect(isValidPeriod("2026-09-01", null)).toBe(true);
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expect(isValidPeriod("2026-09-01", "2026-09-01")).toBe(true);
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expect(isValidPeriod("2026-09-02", "2026-09-01")).toBe(false);
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expect(isValidPeriod("", "2026-09-01")).toBe(false);
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});
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it("changes the calendar day at Moscow midnight across a year boundary", () => {
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expect(moscowDate(new Date("2026-12-31T20:59:59Z"))).toBe("2026-12-31");
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expect(moscowDate(new Date("2026-12-31T21:00:00Z"))).toBe("2027-01-01");
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});
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it("defaults to the last 7 days including today", () => {
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const [from, to] = defaultPeriod();
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expect(calendarDate.safeParse(from).success).toBe(true);
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expect(to).toBe(moscowDate(new Date()));
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expect((Date.parse(to) - Date.parse(from)) / 86_400_000).toBe(6);
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expect(from <= to).toBe(true);
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});
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it("compares dates newest first and keeps dateless rows last", () => {
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const dates = [null, "2026-01-01", "2026-03-01", "2026-02-01"];
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expect(dates.toSorted(compareDateDesc)).toEqual([
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"2026-03-01",
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"2026-02-01",
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"2026-01-01",
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null,
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]);
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expect(dates.toSorted((a, b) => compareDateDesc(b, a))).toEqual([
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null,
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"2026-01-01",
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"2026-02-01",
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"2026-03-01",
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]);
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});
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});
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