File size: 2,974 Bytes
116a473 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 | import { describe, expect, test } from "bun:test"
import { getWeekBounds, getMonthlyBounds } from "../src/util/date"
describe("util.date.getWeekBounds", () => {
test("returns a Monday-based week for Sunday dates", () => {
const date = new Date("2026-01-18T12:00:00Z")
const bounds = getWeekBounds(date)
expect(bounds.start.toISOString()).toBe("2026-01-12T00:00:00.000Z")
expect(bounds.end.toISOString()).toBe("2026-01-19T00:00:00.000Z")
})
test("returns a seven day window", () => {
const date = new Date("2026-01-14T12:00:00Z")
const bounds = getWeekBounds(date)
const span = bounds.end.getTime() - bounds.start.getTime()
expect(span).toBe(7 * 24 * 60 * 60 * 1000)
})
})
describe("util.date.getMonthlyBounds", () => {
test("resets on subscription day mid-month", () => {
const now = new Date("2026-03-20T10:00:00Z")
const subscribed = new Date("2026-01-15T08:00:00Z")
const bounds = getMonthlyBounds(now, subscribed)
expect(bounds.start.toISOString()).toBe("2026-03-15T08:00:00.000Z")
expect(bounds.end.toISOString()).toBe("2026-04-15T08:00:00.000Z")
})
test("before subscription day in current month uses previous month anchor", () => {
const now = new Date("2026-03-10T10:00:00Z")
const subscribed = new Date("2026-01-15T08:00:00Z")
const bounds = getMonthlyBounds(now, subscribed)
expect(bounds.start.toISOString()).toBe("2026-02-15T08:00:00.000Z")
expect(bounds.end.toISOString()).toBe("2026-03-15T08:00:00.000Z")
})
test("clamps day for short months", () => {
const now = new Date("2026-03-01T10:00:00Z")
const subscribed = new Date("2026-01-31T12:00:00Z")
const bounds = getMonthlyBounds(now, subscribed)
expect(bounds.start.toISOString()).toBe("2026-02-28T12:00:00.000Z")
expect(bounds.end.toISOString()).toBe("2026-03-31T12:00:00.000Z")
})
test("handles subscription on the 1st", () => {
const now = new Date("2026-04-15T00:00:00Z")
const subscribed = new Date("2026-01-01T00:00:00Z")
const bounds = getMonthlyBounds(now, subscribed)
expect(bounds.start.toISOString()).toBe("2026-04-01T00:00:00.000Z")
expect(bounds.end.toISOString()).toBe("2026-05-01T00:00:00.000Z")
})
test("exactly on the reset boundary uses current period", () => {
const now = new Date("2026-03-15T08:00:00Z")
const subscribed = new Date("2026-01-15T08:00:00Z")
const bounds = getMonthlyBounds(now, subscribed)
expect(bounds.start.toISOString()).toBe("2026-03-15T08:00:00.000Z")
expect(bounds.end.toISOString()).toBe("2026-04-15T08:00:00.000Z")
})
test("february to march with day 30 subscription", () => {
const now = new Date("2026-02-15T06:00:00Z")
const subscribed = new Date("2025-12-30T06:00:00Z")
const bounds = getMonthlyBounds(now, subscribed)
expect(bounds.start.toISOString()).toBe("2026-01-30T06:00:00.000Z")
expect(bounds.end.toISOString()).toBe("2026-02-28T06:00:00.000Z")
})
})
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