8bbb2f05d3
Replaces global singleton configuration with dependency injection Introduces more modular and testable approach to configuration Removes direct references to calendarConfig in multiple components Adds explicit configuration passing to constructors Improves code maintainability and reduces global state dependencies
111 lines
3.9 KiB
TypeScript
111 lines
3.9 KiB
TypeScript
import { describe, it, expect, beforeEach } from 'vitest';
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import { TimeFormatter } from '../../src/utils/TimeFormatter';
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describe('TimeFormatter', () => {
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beforeEach(() => {
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// Reset to default settings before each test
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TimeFormatter.configure({
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timezone: 'Europe/Copenhagen',
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use24HourFormat: true,
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locale: 'da-DK',
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dateFormat: 'technical',
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showSeconds: false
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});
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});
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describe('Time Formatting', () => {
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it('should format time in 24-hour format', () => {
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let date = new Date('2025-01-15T10:30:00Z');
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let formatted = TimeFormatter.formatTime(date);
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// Should be 11:30 in Copenhagen (UTC+1 in winter)
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expect(formatted).toBe('11:30');
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});
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it('should format time at midnight', () => {
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let date = new Date('2025-01-15T23:00:00Z');
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let formatted = TimeFormatter.formatTime(date);
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// Should be 00:00 next day in Copenhagen
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expect(formatted).toBe('00:00');
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});
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it('should format time range correctly', () => {
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let startDate = new Date('2025-01-15T08:00:00Z');
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let endDate = new Date('2025-01-15T10:00:00Z');
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let formatted = TimeFormatter.formatTimeRange(startDate, endDate);
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// 08:00 UTC = 09:00 CET, 10:00 UTC = 11:00 CET
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expect(formatted).toBe('09:00 - 11:00');
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});
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it('should format time range across midnight', () => {
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let startDate = new Date('2025-01-15T22:00:00Z');
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let endDate = new Date('2025-01-16T01:00:00Z');
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let formatted = TimeFormatter.formatTimeRange(startDate, endDate);
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// 22:00 UTC = 23:00 CET, 01:00 UTC = 02:00 CET next day
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expect(formatted).toBe('23:00 - 02:00');
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});
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});
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describe('Configuration', () => {
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it('should respect timezone configuration', () => {
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TimeFormatter.configure({ timezone: 'America/New_York' });
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let date = new Date('2025-01-15T10:00:00Z');
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let formatted = TimeFormatter.formatTime(date);
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// 10:00 UTC = 05:00 EST (UTC-5 in winter)
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expect(formatted).toBe('05:00');
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});
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it('should respect showSeconds configuration', () => {
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TimeFormatter.configure({ showSeconds: true });
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let date = new Date('2025-01-15T10:30:45Z');
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let formatted = TimeFormatter.formatTime(date);
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// Should include seconds
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expect(formatted).toBe('11:30:45');
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});
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});
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describe('Edge Cases', () => {
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it('should handle DST transition correctly (spring forward)', () => {
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// March 30, 2025 01:00:00 UTC is when Copenhagen springs forward
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let beforeDST = new Date('2025-03-30T00:59:00Z');
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let afterDST = new Date('2025-03-30T01:01:00Z');
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let beforeFormatted = TimeFormatter.formatTime(beforeDST);
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let afterFormatted = TimeFormatter.formatTime(afterDST);
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// Before: 00:59 UTC = 01:59 CET
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// After: 01:01 UTC = 03:01 CEST (jumped from 02:00 to 03:00)
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expect(beforeFormatted).toBe('01:59');
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expect(afterFormatted).toBe('03:01');
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});
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it('should handle DST transition correctly (fall back)', () => {
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// October 26, 2025 01:00:00 UTC is when Copenhagen falls back
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let beforeDST = new Date('2025-10-26T00:59:00Z');
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let afterDST = new Date('2025-10-26T01:01:00Z');
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let beforeFormatted = TimeFormatter.formatTime(beforeDST);
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let afterFormatted = TimeFormatter.formatTime(afterDST);
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// Before: 00:59 UTC = 02:59 CEST
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// After: 01:01 UTC = 02:01 CET (fell back from 03:00 to 02:00)
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expect(beforeFormatted).toBe('02:59');
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expect(afterFormatted).toBe('02:01');
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});
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it('should handle year boundary correctly', () => {
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// December 31, 2024 23:30:00 UTC = January 1, 2025 00:30:00 CET
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let date = new Date('2024-12-31T23:30:00Z');
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let formatted = TimeFormatter.formatTime(date);
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expect(formatted).toBe('00:30');
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});
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});
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});
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