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Adds a real label under each hour's heading — "Monday in the 10th week after Trinity", "The 1st Sunday of Advent" — computed from whichever LiturgicalDay the hour actually resolved against, which can differ from the nav date for Compline's evening anticipation. calendar/day-label.ts combines two things: an ordinal week-within-season label (pure date arithmetic on the season anchors from calendar/temporal.ts and calendar/easter.ts — Trinity-counted, not Divinum Officium's own Pentecost-counted convention; meant to become configurable later via the same day->id indirection already used for the sanctoral calendar, not hardcoded forever), and a feast name from calendar/commemorations.ts's occurrence decision — shown alone if the feast displaces the day outright, prefixed onto the temporal label if merely commemorated, or omitted entirely if nothing's occurring.
64 lines
2.6 KiB
TypeScript
64 lines
2.6 KiB
TypeScript
import { describe, expect, it } from 'vitest';
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import { resolveDay } from '../../src/calendar';
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import { getDayLabel } from '../../src/calendar/day-label';
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import type { LiturgicalDay } from '../../src/calendar/types';
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describe('getDayLabel — ordinal temporal label', () => {
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it("labels an anchor's own partial week as \"Weekday after {Anchor}\"", () => {
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// Trinity Sunday 2026 is May 31.
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expect(getDayLabel(resolveDay('2026-06-01'))).toBe('Monday after Trinity Sunday');
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expect(getDayLabel(resolveDay('2026-01-07'))).toBe('Wednesday after Epiphany'); // Epiphany 2026 is a Tuesday
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});
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it('names the anchor day itself, not "day after itself"', () => {
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expect(getDayLabel(resolveDay('2026-05-31'))).toBe('Trinity Sunday');
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expect(getDayLabel(resolveDay('2026-04-05'))).toBe('Easter');
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expect(getDayLabel(resolveDay('2026-02-18'))).toBe('Ash Wednesday');
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});
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it('gives the correct week-after-Trinity ordinal', () => {
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// Trinity Sunday 2026 is May 31; Jul 6 falls 5 full weeks after the
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// first Sunday-after-Trinity (Jun 7).
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expect(getDayLabel(resolveDay('2026-07-06'))).toBe('Monday in the 5th week after Trinity');
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});
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it("Advent's own anchor Sunday is already week 1, not a separate anchor-week case", () => {
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expect(getDayLabel(resolveDay('2025-11-30'))).toBe('The 1st Sunday of Advent');
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expect(getDayLabel(resolveDay('2025-12-01'))).toBe('Monday in the 1st week of Advent');
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});
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it('falls back to weekday + season name for seasons with no ordinal convention modeled', () => {
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expect(getDayLabel(resolveDay('2026-05-15'))).toContain('in Ascensiontide');
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});
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});
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describe('getDayLabel — feast name combination', () => {
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const base: LiturgicalDay = {
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date: '2026-06-15',
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weekday: 'monday',
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season: 'trinitytide',
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temporalCategory: 'ordinary-feria',
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occurring: [],
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};
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it('shows just the feast name when it wins outright', () => {
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const day: LiturgicalDay = {
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...base,
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occurring: [{ id: 'x', name: 'St. Ereden', rank: 'duplex', commemorated: false }],
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};
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expect(getDayLabel(day)).toBe('St. Ereden');
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});
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it('shows both, feast first, when the feast is merely commemorated', () => {
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const day: LiturgicalDay = {
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...base,
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occurring: [{ id: 'x', name: 'St. Ereden', rank: 'duplex-2-classis', commemorated: true }],
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};
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expect(getDayLabel(day)).toBe('St. Ereden — Monday in the 2nd week after Trinity');
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});
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it('shows just the temporal label when nothing is occurring at all', () => {
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expect(getDayLabel(base)).toBe('Monday in the 2nd week after Trinity');
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});
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});
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