70 lines
2.3 KiB
TypeScript
70 lines
2.3 KiB
TypeScript
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/**
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* Tests for the quick-range preset + window-shift helpers (Grafana-style).
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*/
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import { describe, it, expect } from 'vitest'
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import { TIME_PRESETS, presetRange, shiftRange } from './mapUtils'
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describe('TIME_PRESETS', () => {
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it('exposes the 7 expected quick ranges in order', () => {
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expect(TIME_PRESETS.map((p) => p.value)).toEqual([
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'24h',
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'1w',
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'2w',
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'1mo',
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'6mo',
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'1y',
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'5y',
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])
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})
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})
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describe('presetRange', () => {
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const now = new Date('2026-06-13T12:00:00Z')
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it('ends at now and spans the given duration (24h)', () => {
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const { start, end } = presetRange(24 * 3_600_000, now)
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expect(end).toBe('2026-06-13T12:00:00Z')
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expect(start).toBe('2026-06-12T12:00:00Z')
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})
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it('spans a week', () => {
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const { start, end } = presetRange(7 * 24 * 3_600_000, now)
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expect(end).toBe('2026-06-13T12:00:00Z')
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expect(start).toBe('2026-06-06T12:00:00Z')
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})
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it('emits second-precision ISO with no milliseconds', () => {
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const { start, end } = presetRange(3_600_000, now)
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expect(start).toMatch(/^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}Z$/)
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expect(end).toMatch(/^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}Z$/)
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})
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})
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describe('shiftRange', () => {
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it('moves a 24h window back by 24h when direction = -1', () => {
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const { start, end } = shiftRange('2026-06-12T12:00:00Z', '2026-06-13T12:00:00Z', -1)
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expect(start).toBe('2026-06-11T12:00:00Z')
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expect(end).toBe('2026-06-12T12:00:00Z')
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})
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it('moves a 24h window forward by 24h when direction = +1', () => {
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const { start, end } = shiftRange('2026-06-12T12:00:00Z', '2026-06-13T12:00:00Z', 1)
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expect(start).toBe('2026-06-13T12:00:00Z')
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expect(end).toBe('2026-06-14T12:00:00Z')
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})
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it('shifts by the window OWN span (a 1-week window moves a week)', () => {
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const { start, end } = shiftRange('2026-06-06T12:00:00Z', '2026-06-13T12:00:00Z', -1)
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expect(start).toBe('2026-05-30T12:00:00Z')
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expect(end).toBe('2026-06-06T12:00:00Z')
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})
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it('is reversible: shift back then forward returns to the original window', () => {
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const orig = { start: '2026-06-06T12:00:00Z', end: '2026-06-13T12:00:00Z' }
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const back = shiftRange(orig.start, orig.end, -1)
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const fwd = shiftRange(back.start, back.end, 1)
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expect(fwd).toEqual(orig)
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})
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})
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