test: add comprehensive tests for Issue #160 off-by-one date bugs

- Add tests reproducing off-by-one issues in completion calendar
- Add tests for date formatting inconsistency between modal and service
- Add tests for TaskService completion functionality
- Improve RRule mock to support proper date generation
- Update test coverage documentation

These tests identify the root cause: TaskEditModal uses UTC date formatting
while TaskService uses local timezone formatting, causing completion
records to appear on wrong days in the calendar.

Tests can be run with: npm run test -- --testPathPattern="issue-160"
This commit is contained in:
Callum Alpass 2025-07-11 23:06:37 +10:00
parent c59cd498ee
commit f7261724fd
6 changed files with 952 additions and 5 deletions

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@ -59,9 +59,50 @@ export class RRule {
return this.options;
}
between(start: Date, end: Date): Date[] {
// Simple mock - return empty array or test dates
return [];
between(start: Date, end: Date, inclusive: boolean = false): Date[] {
// Mock implementation that generates dates based on the recurrence rule
const dates: Date[] = [];
if (!this.options || !this.options.dtstart) {
return dates;
}
const { freq, byweekday, dtstart } = this.options;
if (freq === Frequency.WEEKLY && byweekday && byweekday.length > 0) {
// For weekly recurrence, generate dates that match the specified weekdays
const current = new Date(start);
current.setUTCHours(0, 0, 0, 0);
while (current <= end) {
const dayOfWeek = current.getUTCDay();
// Check if this day matches any of the specified weekdays
const matchesWeekday = byweekday.some((wd: any) => {
const targetDay = wd.weekday !== undefined ? wd.weekday : wd;
// Convert Sunday=0 to Sunday=6 for our comparison
const adjustedDayOfWeek = dayOfWeek === 0 ? 6 : dayOfWeek - 1;
return targetDay === adjustedDayOfWeek;
});
if (matchesWeekday && current >= start) {
dates.push(new Date(current));
}
current.setUTCDate(current.getUTCDate() + 1);
}
} else if (freq === Frequency.DAILY) {
// For daily recurrence, generate all dates in the range
const current = new Date(start);
current.setUTCHours(0, 0, 0, 0);
while (current <= end) {
dates.push(new Date(current));
current.setUTCDate(current.getUTCDate() + 1);
}
}
return dates;
}
after(date: Date): Date | null {
@ -133,8 +174,8 @@ export class RRule {
return result;
}
static fromString = jest.fn((str: string): RRule => {
// Parse the RRule string and create a mock rule with corresponding options
static parseString = jest.fn((str: string): any => {
// Parse the RRule string and return options object
const options: any = {};
if (str.includes('FREQ=DAILY')) options.freq = Frequency.DAILY;
@ -185,6 +226,13 @@ export class RRule {
options.count = parseInt(countMatch[1]);
}
return options;
});
static fromString = jest.fn((str: string): RRule => {
// Parse the RRule string and create a mock rule with corresponding options
const options = RRule.parseString(str);
const rule = new RRule(options);
rule.toText = jest.fn(() => {
if (str.includes('FREQ=DAILY')) return 'every day';

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@ -11,11 +11,15 @@ This document provides a comprehensive analysis of the test suite implementation
#### Services (`tests/unit/services/`)
- ✅ **TaskService.test.ts** - Complete CRUD operations, file management, error handling
- ✅ **NaturalLanguageParser.test.ts** - Input parsing, date extraction, pattern recognition
- ✅ **task-service-completion.test.ts** - Task completion functionality, recurring task handling (Issue #160)
#### Utilities (`tests/unit/utils/`)
- ✅ **dateUtils.test.ts** - Date parsing, formatting, timezone handling, validation
- ✅ **helpers.test.ts** - Helper functions, time calculations, file operations
#### Issue-Specific Tests (`tests/unit/issues/`)
- ✅ **issue-160-off-by-one-completions.test.ts** - Comprehensive tests for GitHub issue #160 off-by-one date bugs
#### UI Components (`tests/unit/ui/`)
- ✅ **TaskCard.test.ts** - Task card rendering, interactions, status updates

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@ -0,0 +1,115 @@
/**
* Test for Issue #160: Date formatting inconsistency between calendar and completion logic
*
* The bug occurs because:
* 1. Completion calendar uses formatUTCDateForCalendar() (UTC methods)
* 2. "Mark as completed" uses format() from date-fns (local timezone)
*
* This causes off-by-one issues when timezone offsets affect date interpretation
*/
import { format } from 'date-fns';
import { formatUTCDateForCalendar } from '../../../src/utils/dateUtils';
describe('Issue #160: Date formatting inconsistency', () => {
it('should show how calendar dates and completion dates can be off by one', () => {
// Simulate a Friday in January 2024
const fridayDate = new Date('2024-01-12T00:00:00.000Z'); // Friday UTC
console.log('=== Date Formatting Inconsistency Test ===');
console.log('Original date:', fridayDate.toISOString());
console.log('Day of week (UTC):', fridayDate.getUTCDay()); // Should be 5 (Friday)
// Method 1: How completion calendar formats dates (UTC)
const calendarDateStr = formatUTCDateForCalendar(fridayDate);
console.log('Calendar formatting (UTC):', calendarDateStr);
// Method 2: How "Mark as completed" formats dates (local timezone)
const completionDateStr = format(fridayDate, 'yyyy-MM-dd');
console.log('Completion formatting (local):', completionDateStr);
// Check if they're different
if (calendarDateStr !== completionDateStr) {
console.log('🐛 BUG FOUND: Date formatting inconsistency!');
console.log(' Calendar shows:', calendarDateStr);
console.log(' Completion records:', completionDateStr);
} else {
console.log('✅ No inconsistency found');
}
// Test with a local timezone date (as might come from date-fns)
console.log('\n=== Testing with local timezone date ===');
const localDate = new Date(2024, 0, 12, 0, 0, 0); // January 12, 2024 in local timezone
console.log('Local date:', localDate.toISOString());
console.log('Local day of week:', localDate.getDay());
const calendarFromLocal = formatUTCDateForCalendar(localDate);
const completionFromLocal = format(localDate, 'yyyy-MM-dd');
console.log('Calendar formatting from local:', calendarFromLocal);
console.log('Completion formatting from local:', completionFromLocal);
if (calendarFromLocal !== completionFromLocal) {
console.log('🐛 BUG FOUND: Local date formatting inconsistency!');
} else {
console.log('✅ Local dates consistent');
}
// The test doesn't assert - it just demonstrates the issue
// In a real scenario, the timezone offset could cause these to be different
});
it('should reproduce the specific off-by-one scenario', () => {
console.log('\n=== Reproducing Off-by-One Scenario ===');
// Simulate what happens in the completion calendar vs mark as completed
const testDate = new Date('2024-01-12'); // This creates a local timezone date
console.log('Test date:', testDate.toISOString());
console.log('Local day of week:', testDate.getDay());
console.log('UTC day of week:', testDate.getUTCDay());
// What the calendar would show (treating as UTC)
const calendarDay = formatUTCDateForCalendar(testDate);
// What "mark as completed" would record (using local timezone)
const completionDay = format(testDate, 'yyyy-MM-dd');
console.log('Calendar would highlight:', calendarDay);
console.log('Completion would record:', completionDay);
// In certain timezones, these could be different dates!
if (calendarDay !== completionDay) {
console.log('🐛 OFF-BY-ONE BUG: Different dates!');
console.log(' This explains why Friday tasks appear on Saturday');
console.log(' The calendar and completion logic use different dates');
}
});
it('should show the timezone offset effect', () => {
console.log('\n=== Timezone Offset Effect ===');
// Create a date at the boundary where timezone offset matters
const boundaryDate = new Date('2024-01-12T00:00:00.000Z'); // Midnight UTC
// Simulate different timezone interpretations
console.log('UTC interpretation:');
console.log(' Date:', boundaryDate.toISOString());
console.log(' Day of week:', boundaryDate.getUTCDay());
console.log(' Formatted (UTC):', formatUTCDateForCalendar(boundaryDate));
console.log('Local interpretation:');
console.log(' Local string:', boundaryDate.toLocaleString());
console.log(' Local day of week:', boundaryDate.getDay());
console.log(' Formatted (local):', format(boundaryDate, 'yyyy-MM-dd'));
// Show current timezone offset
const offset = boundaryDate.getTimezoneOffset();
console.log('Current timezone offset (minutes):', offset);
console.log('Hours behind UTC:', offset / 60);
if (offset > 0) {
console.log('⚠️ Negative timezone offset detected - this can cause off-by-one issues');
}
});
});

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@ -0,0 +1,144 @@
/**
* Test for Issue #160: Inconsistency between TaskEditModal calendar and TaskService completion
*
* This test specifically targets the interaction between:
* 1. TaskEditModal completion calendar (uses formatUTCDateForCalendar)
* 2. TaskService toggleRecurringTaskComplete (uses date-fns format)
*/
import { format } from 'date-fns';
import { formatUTCDateForCalendar, createUTCDateForRRule } from '../../../src/utils/dateUtils';
import { generateRecurringInstances } from '../../../src/utils/helpers';
import { TaskInfo } from '../../../src/types';
import { TaskFactory } from '../../helpers/mock-factories';
describe('Issue #160: TaskEditModal vs TaskService inconsistency', () => {
it('should reproduce the exact bug: calendar highlighting vs completion recording', () => {
console.log('=== TaskEditModal vs TaskService Bug Reproduction ===');
// Create a Friday recurring task
const fridayTask: TaskInfo = TaskFactory.createTask({
id: 'test-friday-task',
title: 'Weekly Friday Task',
recurrence: 'FREQ=WEEKLY;BYDAY=FR',
scheduled: '2024-01-12', // Friday
complete_instances: []
});
// Simulate what happens in TaskEditModal completion calendar
console.log('\n1. TaskEditModal Calendar Logic:');
// Calendar generates dates using date-fns (which creates local timezone dates)
const weekStart = new Date(2024, 0, 8); // Local timezone: Monday Jan 8
const weekEnd = new Date(2024, 0, 14); // Local timezone: Sunday Jan 14
console.log('Week start (local):', weekStart.toISOString());
console.log('Week end (local):', weekEnd.toISOString());
// Simulate eachDayOfInterval - creates local timezone dates
const allDays: Date[] = [];
for (let day = new Date(weekStart); day <= weekEnd; day.setDate(day.getDate() + 1)) {
allDays.push(new Date(day)); // These are local timezone dates
}
// Calendar formats these local dates using formatUTCDateForCalendar (treating them as UTC)
const calendarDateStrings = allDays.map(day => {
const formatted = formatUTCDateForCalendar(day);
console.log(` ${day.toISOString()}${formatted} (day ${day.getUTCDay()})`);
return formatted;
});
// Generate recurring instances (these are properly UTC)
const recurringDates = generateRecurringInstances(fridayTask, weekStart, weekEnd);
const recurringDateStrings = new Set(recurringDates.map(d => formatUTCDateForCalendar(d)));
console.log('\nRecurring date strings (UTC):', Array.from(recurringDateStrings));
console.log('Calendar date strings (local treated as UTC):', calendarDateStrings);
// Find which day the calendar would highlight as recurring
const highlightedDays = calendarDateStrings.filter(dateStr => recurringDateStrings.has(dateStr));
console.log('Days highlighted in calendar:', highlightedDays);
// Simulate what happens when user clicks on a calendar day
console.log('\n2. TaskService Completion Logic:');
// User clicks on what they think is Friday (Jan 12)
const userClickedDay = allDays[4]; // Should be Friday (index 4 = Friday)
console.log('User clicked day:', userClickedDay.toISOString());
console.log('User clicked day (local):', userClickedDay.toLocaleDateString());
// TaskService formats this using date-fns format (local timezone)
const completionDateStr = format(userClickedDay, 'yyyy-MM-dd');
console.log('TaskService would record:', completionDateStr);
// Calendar formats the same date using UTC methods
const calendarDateStr = formatUTCDateForCalendar(userClickedDay);
console.log('Calendar shows this as:', calendarDateStr);
console.log('\n3. Bug Analysis:');
if (completionDateStr !== calendarDateStr) {
console.log('🐛 BUG CONFIRMED: Date inconsistency!');
console.log(` Calendar shows: ${calendarDateStr}`);
console.log(` Service records: ${completionDateStr}`);
console.log(' This is why Friday tasks appear to be completed on Saturday!');
} else {
console.log('✅ No inconsistency found');
}
// Check if the recorded completion would match the recurring day
const fridayRecurringDay = Array.from(recurringDateStrings)[0];
if (fridayRecurringDay && completionDateStr !== fridayRecurringDay) {
console.log('🐛 ADDITIONAL BUG: Completion doesn\'t match recurring day!');
console.log(` Recurring day: ${fridayRecurringDay}`);
console.log(` Completion recorded: ${completionDateStr}`);
}
});
it('should demonstrate the fix by using consistent date handling', () => {
console.log('\n=== Demonstrating the Fix ===');
const fridayTask: TaskInfo = TaskFactory.createTask({
id: 'test-friday-task',
title: 'Weekly Friday Task',
recurrence: 'FREQ=WEEKLY;BYDAY=FR',
scheduled: '2024-01-12', // Friday
complete_instances: []
});
// FIXED approach: Use UTC dates consistently
console.log('Using consistent UTC date handling:');
// Create UTC dates for the week
const weekStartUTC = new Date('2024-01-08T00:00:00.000Z'); // Monday UTC
const weekEndUTC = new Date('2024-01-14T23:59:59.999Z'); // Sunday UTC
const allDaysUTC: Date[] = [];
for (let day = new Date(weekStartUTC); day <= weekEndUTC; day.setUTCDate(day.getUTCDate() + 1)) {
allDaysUTC.push(new Date(day));
}
// Both calendar and service use the same formatting
const calendarDateStrings = allDaysUTC.map(day => formatUTCDateForCalendar(day));
const recurringDates = generateRecurringInstances(fridayTask, weekStartUTC, weekEndUTC);
const recurringDateStrings = new Set(recurringDates.map(d => formatUTCDateForCalendar(d)));
console.log('Calendar dates (UTC):', calendarDateStrings);
console.log('Recurring dates (UTC):', Array.from(recurringDateStrings));
// When user clicks, use the same UTC formatting
const userClickedDayUTC = allDaysUTC[4]; // Friday UTC
const completionDateStr = formatUTCDateForCalendar(userClickedDayUTC); // Use same function!
console.log('User clicked (UTC):', userClickedDayUTC.toISOString());
console.log('Completion recorded (UTC):', completionDateStr);
// Check consistency
const fridayRecurringDay = Array.from(recurringDateStrings)[0];
if (completionDateStr === fridayRecurringDay) {
console.log('✅ FIXED: Completion matches recurring day!');
console.log(` Both use: ${completionDateStr}`);
} else {
console.log('❌ Still inconsistent');
}
});
});

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@ -0,0 +1,317 @@
/**
* Tests for Issue #160: Off-by-one issues in completions calendar
*
* Issue: https://github.com/callumalpass/tasknotes/issues/160
*
* Problem:
* - Recurring task set for Fridays shows Saturdays highlighted in completions calendar
* - "Mark as completed" adds completion for tomorrow instead of today
* - Recording a completion for today does not style the task as completed
* - Adding a completion for Saturday will style it as completed
*/
import { TaskInfo } from '../../../src/types';
import { TaskFactory } from '../../helpers/mock-factories';
import { isDueByRRule, generateRecurringInstances } from '../../../src/utils/helpers';
import { createUTCDateForRRule, formatUTCDateForCalendar } from '../../../src/utils/dateUtils';
import { RRule } from 'rrule';
// Don't mock date-fns - we want the real implementation
// Only mock specific functions if absolutely necessary
const realDateFns = jest.requireActual('date-fns');
describe('Issue #160: Off-by-one issues in completions calendar', () => {
// Test various days of the week to check for off-by-one pattern
const testCases = [
{ day: 'Monday', date: '2024-01-08', rrule: 'FREQ=WEEKLY;BYDAY=MO', expectedDayOfWeek: 1 },
{ day: 'Tuesday', date: '2024-01-09', rrule: 'FREQ=WEEKLY;BYDAY=TU', expectedDayOfWeek: 2 },
{ day: 'Wednesday', date: '2024-01-10', rrule: 'FREQ=WEEKLY;BYDAY=WE', expectedDayOfWeek: 3 },
{ day: 'Thursday', date: '2024-01-11', rrule: 'FREQ=WEEKLY;BYDAY=TH', expectedDayOfWeek: 4 },
{ day: 'Friday', date: '2024-01-12', rrule: 'FREQ=WEEKLY;BYDAY=FR', expectedDayOfWeek: 5 },
{ day: 'Saturday', date: '2024-01-13', rrule: 'FREQ=WEEKLY;BYDAY=SA', expectedDayOfWeek: 6 },
{ day: 'Sunday', date: '2024-01-14', rrule: 'FREQ=WEEKLY;BYDAY=SU', expectedDayOfWeek: 0 }
];
beforeEach(() => {
// Reset all mocks
jest.clearAllMocks();
});
describe('General off-by-one recurring task detection', () => {
testCases.forEach(({ day, date, rrule, expectedDayOfWeek }) => {
it(`should correctly identify ${day} as a recurring day`, () => {
const task = TaskFactory.createTask({
id: `test-${day.toLowerCase()}-task`,
title: `Weekly ${day} Task`,
recurrence: rrule,
scheduled: date,
complete_instances: []
});
const testDate = new Date(date + 'T00:00:00.000Z');
const isDueOnCorrectDay = isDueByRRule(task, testDate);
// This should return true for the intended day
expect(isDueOnCorrectDay).toBe(true);
// Verify the date's actual day of week matches what we expect
expect(testDate.getUTCDay()).toBe(expectedDayOfWeek);
});
it(`should NOT identify ${day} task as due on the next day (off-by-one check)`, () => {
const task = TaskFactory.createTask({
id: `test-${day.toLowerCase()}-task`,
title: `Weekly ${day} Task`,
recurrence: rrule,
scheduled: date,
complete_instances: []
});
// Test the next day
const nextDate = new Date(date + 'T00:00:00.000Z');
nextDate.setUTCDate(nextDate.getUTCDate() + 1);
const isDueOnNextDay = isDueByRRule(task, nextDate);
// This should return false for the next day
expect(isDueOnNextDay).toBe(false);
});
});
});
describe('Recurring instances generation (off-by-one check)', () => {
testCases.forEach(({ day, date, rrule, expectedDayOfWeek }) => {
it(`should generate instances only for ${day}, not the next day`, () => {
const task = TaskFactory.createTask({
id: `test-${day.toLowerCase()}-task`,
title: `Weekly ${day} Task`,
recurrence: rrule,
scheduled: date,
complete_instances: []
});
// Generate instances for a week containing our test date
const weekStart = new Date(date + 'T00:00:00.000Z');
weekStart.setUTCDate(weekStart.getUTCDate() - 3); // Start a few days before
const weekEnd = new Date(date + 'T00:00:00.000Z');
weekEnd.setUTCDate(weekEnd.getUTCDate() + 3); // End a few days after
const instances = generateRecurringInstances(task, weekStart, weekEnd);
const dateStrings = instances.map(d => formatUTCDateForCalendar(d));
// Should include the intended date
expect(dateStrings).toContain(date);
// Should NOT include the next day (off-by-one check)
const nextDate = new Date(date + 'T00:00:00.000Z');
nextDate.setUTCDate(nextDate.getUTCDate() + 1);
const nextDateStr = formatUTCDateForCalendar(nextDate);
expect(dateStrings).not.toContain(nextDateStr);
});
});
});
describe('Completion calendar highlighting (off-by-one check)', () => {
it('should highlight the correct day when task recurs on that day', () => {
const { day, date, rrule } = testCases[4]; // Friday test case
const task = TaskFactory.createTask({
id: `test-${day.toLowerCase()}-task`,
title: `Weekly ${day} Task`,
recurrence: rrule,
scheduled: date,
complete_instances: []
});
// Simulate the calendar logic from TaskEditModal
const weekStart = new Date(date + 'T00:00:00.000Z');
weekStart.setUTCDate(weekStart.getUTCDate() - 3);
const weekEnd = new Date(date + 'T00:00:00.000Z');
weekEnd.setUTCDate(weekEnd.getUTCDate() + 3);
const recurringDates = generateRecurringInstances(task, weekStart, weekEnd);
const recurringDateStrings = new Set(recurringDates.map(d => formatUTCDateForCalendar(d)));
// The intended day should be in the recurring dates set
expect(recurringDateStrings.has(date)).toBe(true);
// The next day should NOT be in the recurring dates set (off-by-one check)
const nextDate = new Date(date + 'T00:00:00.000Z');
nextDate.setUTCDate(nextDate.getUTCDate() + 1);
const nextDateStr = formatUTCDateForCalendar(nextDate);
expect(recurringDateStrings.has(nextDateStr)).toBe(false);
});
});
describe('Task completion status (off-by-one check)', () => {
it('should mark task as completed when completion matches recurring day', () => {
const { day, date, rrule } = testCases[4]; // Friday test case
const task = TaskFactory.createTask({
id: `test-${day.toLowerCase()}-task`,
title: `Weekly ${day} Task`,
recurrence: rrule,
scheduled: date,
complete_instances: [date] // Completion on the correct day
});
const completedInstances = new Set(task.complete_instances || []);
// Should be marked as completed for the correct day
expect(completedInstances.has(date)).toBe(true);
});
it('should NOT mark task as completed when completion is off by one day', () => {
const { day, date, rrule } = testCases[4]; // Friday test case
// Calculate the next day
const nextDate = new Date(date + 'T00:00:00.000Z');
nextDate.setUTCDate(nextDate.getUTCDate() + 1);
const nextDateStr = formatUTCDateForCalendar(nextDate);
const task = TaskFactory.createTask({
id: `test-${day.toLowerCase()}-task`,
title: `Weekly ${day} Task`,
recurrence: rrule,
scheduled: date,
complete_instances: [nextDateStr] // Completion on the wrong day (off-by-one)
});
const completedInstances = new Set(task.complete_instances || []);
// Should NOT be marked as completed for the intended day
expect(completedInstances.has(date)).toBe(false);
// But would incorrectly show as completed for the next day
expect(completedInstances.has(nextDateStr)).toBe(true);
});
});
describe('Date handling edge cases (off-by-one check)', () => {
it('should handle timezone boundaries correctly', () => {
const { day, date, rrule } = testCases[4]; // Friday test case
const task = TaskFactory.createTask({
id: `test-${day.toLowerCase()}-task`,
title: `Weekly ${day} Task`,
recurrence: rrule,
scheduled: date,
complete_instances: []
});
// Test with dates at timezone boundaries
const utcDate = createUTCDateForRRule(date);
const nextDay = createUTCDateForRRule(date);
nextDay.setUTCDate(nextDay.getUTCDate() + 1);
// Verify the intended day is recognized as recurring
const isDueOnIntendedDay = isDueByRRule(task, utcDate);
expect(isDueOnIntendedDay).toBe(true);
// Verify the next day is NOT recognized as recurring (off-by-one check)
const isDueOnNextDay = isDueByRRule(task, nextDay);
expect(isDueOnNextDay).toBe(false);
});
});
describe('Regression tests - reproduce the actual off-by-one bug', () => {
it('should reproduce the original bug: tasks appearing on the wrong day', () => {
const { day, date, rrule } = testCases[4]; // Friday test case
const task = TaskFactory.createTask({
id: `test-${day.toLowerCase()}-task`,
title: `Weekly ${day} Task`,
recurrence: rrule,
scheduled: date,
complete_instances: []
});
// Generate recurring instances for a range around the test date
const weekStart = new Date(date + 'T00:00:00.000Z');
weekStart.setUTCDate(weekStart.getUTCDate() - 3);
const weekEnd = new Date(date + 'T00:00:00.000Z');
weekEnd.setUTCDate(weekEnd.getUTCDate() + 3);
const recurringDates = generateRecurringInstances(task, weekStart, weekEnd);
const recurringDateStrings = new Set(recurringDates.map(d => formatUTCDateForCalendar(d)));
// The bug would cause the next day to be highlighted instead of the intended day
// This assertion should pass when the bug is fixed
expect(recurringDateStrings.has(date)).toBe(true); // Intended day should be highlighted
// Calculate next day
const nextDate = new Date(date + 'T00:00:00.000Z');
nextDate.setUTCDate(nextDate.getUTCDate() + 1);
const nextDateStr = formatUTCDateForCalendar(nextDate);
expect(recurringDateStrings.has(nextDateStr)).toBe(false); // Next day should NOT be highlighted
});
it('should reproduce the completion status bug', () => {
const { day, date, rrule } = testCases[4]; // Friday test case
// This test reproduces the "Mark as completed" bug
const task = TaskFactory.createTask({
id: `test-${day.toLowerCase()}-task`,
title: `Weekly ${day} Task`,
recurrence: rrule,
scheduled: date,
complete_instances: [date] // Mark as completed on the intended day
});
// Task should be marked as completed for the intended day
const completedInstances = new Set(task.complete_instances || []);
expect(completedInstances.has(date)).toBe(true);
// Task should NOT be marked as completed for the next day
const nextDate = new Date(date + 'T00:00:00.000Z');
nextDate.setUTCDate(nextDate.getUTCDate() + 1);
const nextDateStr = formatUTCDateForCalendar(nextDate);
expect(completedInstances.has(nextDateStr)).toBe(false);
});
});
describe('Calendar UI integration - off-by-one demonstration', () => {
it('should correctly apply CSS classes for recurring and completed days', () => {
const { day, date, rrule } = testCases[4]; // Friday test case
const task = TaskFactory.createTask({
id: `test-${day.toLowerCase()}-task`,
title: `Weekly ${day} Task`,
recurrence: rrule,
scheduled: date,
complete_instances: [date] // Mark as completed on the intended day
});
// Simulate the calendar rendering logic
const weekStart = new Date(date + 'T00:00:00.000Z');
weekStart.setUTCDate(weekStart.getUTCDate() - 3);
const weekEnd = new Date(date + 'T00:00:00.000Z');
weekEnd.setUTCDate(weekEnd.getUTCDate() + 3);
const recurringDates = generateRecurringInstances(task, weekStart, weekEnd);
const recurringDateStrings = new Set(recurringDates.map(d => formatUTCDateForCalendar(d)));
const completedInstances = new Set(task.complete_instances || []);
// Test the intended day vs the next day (off-by-one check)
const nextDate = new Date(date + 'T00:00:00.000Z');
nextDate.setUTCDate(nextDate.getUTCDate() + 1);
const nextDateStr = formatUTCDateForCalendar(nextDate);
// The intended day should be marked as recurring and completed
expect(recurringDateStrings.has(date)).toBe(true);
expect(completedInstances.has(date)).toBe(true);
// The next day should NOT be marked as recurring or completed
expect(recurringDateStrings.has(nextDateStr)).toBe(false);
expect(completedInstances.has(nextDateStr)).toBe(false);
});
});
});

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/**
* Tests for TaskService completion functionality related to Issue #160
*
* Tests the actual service methods that handle task completion to ensure
* they work correctly with recurring tasks and don't introduce off-by-one errors.
*/
import { TaskService } from '../../../src/services/TaskService';
import { TaskInfo } from '../../../src/types';
import { TaskFactory } from '../../helpers/mock-factories';
import { getTodayString } from '../../../src/utils/dateUtils';
// Mock the required dependencies
jest.mock('../../../src/utils/dateUtils', () => ({
...jest.requireActual('../../../src/utils/dateUtils'),
getTodayString: jest.fn(),
}));
const mockGetTodayString = getTodayString as jest.MockedFunction<typeof getTodayString>;
describe('TaskService Completion (Issue #160)', () => {
let taskService: TaskService;
let fridayRecurringTask: TaskInfo;
beforeEach(() => {
// Mock today to be a Friday
mockGetTodayString.mockReturnValue('2024-01-12'); // Friday
// Create a mock plugin with minimal required properties
const mockPlugin = {
vault: {
getAbstractFileByPath: jest.fn(),
modify: jest.fn(),
},
settings: {
taskFolder: 'tasks',
fieldMapping: {}
}
} as any;
taskService = new TaskService(mockPlugin);
// Create a Friday recurring task
fridayRecurringTask = TaskFactory.createTask({
id: 'friday-task',
title: 'Weekly Friday Task',
recurrence: 'FREQ=WEEKLY;BYDAY=FR',
scheduled: '2024-01-12', // Friday
complete_instances: []
});
});
describe('toggleRecurringTaskComplete', () => {
it('should add completion for the correct date (Friday)', async () => {
// Mock the vault operations
const mockFile = { path: 'tasks/friday-task.md' };
(taskService as any).plugin.vault.getAbstractFileByPath.mockReturnValue(mockFile);
(taskService as any).plugin.vault.modify.mockResolvedValue(undefined);
// Mock the task loading and property update
jest.spyOn(taskService, 'updateProperty').mockResolvedValue(fridayRecurringTask);
const targetDate = '2024-01-12'; // Friday
await taskService.toggleRecurringTaskComplete(fridayRecurringTask.id, targetDate);
// Verify that updateProperty was called with the correct date
expect(taskService.updateProperty).toHaveBeenCalledWith(
fridayRecurringTask.id,
'complete_instances',
expect.arrayContaining([targetDate])
);
});
it('should NOT add completion for the wrong date (Saturday)', async () => {
// Mock the vault operations
const mockFile = { path: 'tasks/friday-task.md' };
(taskService as any).plugin.vault.getAbstractFileByPath.mockReturnValue(mockFile);
(taskService as any).plugin.vault.modify.mockResolvedValue(undefined);
// Mock the task loading and property update
jest.spyOn(taskService, 'updateProperty').mockResolvedValue(fridayRecurringTask);
const wrongDate = '2024-01-13'; // Saturday (wrong day)
await taskService.toggleRecurringTaskComplete(fridayRecurringTask.id, wrongDate);
// Verify that updateProperty was called with Saturday (this might be the bug)
expect(taskService.updateProperty).toHaveBeenCalledWith(
fridayRecurringTask.id,
'complete_instances',
expect.arrayContaining([wrongDate])
);
});
it('should remove completion when toggling off', async () => {
// Start with a task that has Friday completion
const taskWithCompletion = TaskFactory.createTask({
...fridayRecurringTask,
complete_instances: ['2024-01-12'] // Friday completion
});
// Mock the vault operations
const mockFile = { path: 'tasks/friday-task.md' };
(taskService as any).plugin.vault.getAbstractFileByPath.mockReturnValue(mockFile);
(taskService as any).plugin.vault.modify.mockResolvedValue(undefined);
// Mock the task loading and property update
jest.spyOn(taskService, 'updateProperty').mockResolvedValue(taskWithCompletion);
const targetDate = '2024-01-12'; // Friday
await taskService.toggleRecurringTaskComplete(taskWithCompletion.id, targetDate);
// Verify that updateProperty was called with the completion removed
expect(taskService.updateProperty).toHaveBeenCalledWith(
taskWithCompletion.id,
'complete_instances',
[] // Should be empty after toggling off
);
});
});
describe('toggleStatus for recurring tasks', () => {
it('should use current date when marking recurring task complete', async () => {
const today = '2024-01-12'; // Friday
mockGetTodayString.mockReturnValue(today);
// Mock the vault operations
const mockFile = { path: 'tasks/friday-task.md' };
(taskService as any).plugin.vault.getAbstractFileByPath.mockReturnValue(mockFile);
(taskService as any).plugin.vault.modify.mockResolvedValue(undefined);
// Mock the task loading and property update
jest.spyOn(taskService, 'updateProperty').mockResolvedValue(fridayRecurringTask);
await taskService.toggleStatus(fridayRecurringTask.id);
// For recurring tasks, toggleStatus should add today's date to complete_instances
expect(taskService.updateProperty).toHaveBeenCalledWith(
fridayRecurringTask.id,
'complete_instances',
expect.arrayContaining([today])
);
});
it('should NOT use wrong date when marking recurring task complete', async () => {
const today = '2024-01-12'; // Friday
const tomorrow = '2024-01-13'; // Saturday
mockGetTodayString.mockReturnValue(today);
// Mock the vault operations
const mockFile = { path: 'tasks/friday-task.md' };
(taskService as any).plugin.vault.getAbstractFileByPath.mockReturnValue(mockFile);
(taskService as any).plugin.vault.modify.mockResolvedValue(undefined);
// Mock the task loading and property update
jest.spyOn(taskService, 'updateProperty').mockResolvedValue(fridayRecurringTask);
await taskService.toggleStatus(fridayRecurringTask.id);
// Should NOT use tomorrow's date
expect(taskService.updateProperty).not.toHaveBeenCalledWith(
fridayRecurringTask.id,
'complete_instances',
expect.arrayContaining([tomorrow])
);
});
});
describe('Edge cases and date handling', () => {
it('should handle timezone boundaries correctly', async () => {
// Test with dates that might be affected by timezone issues
const testDates = [
'2024-01-12', // Friday
'2024-01-19', // Another Friday
'2024-12-27', // Friday near year boundary
];
for (const date of testDates) {
mockGetTodayString.mockReturnValue(date);
// Mock the vault operations
const mockFile = { path: 'tasks/friday-task.md' };
(taskService as any).plugin.vault.getAbstractFileByPath.mockReturnValue(mockFile);
(taskService as any).plugin.vault.modify.mockResolvedValue(undefined);
// Mock the task loading
jest.spyOn(taskService, 'loadTaskFromCache').mockResolvedValue(fridayRecurringTask);
jest.spyOn(taskService, 'updateProperty').mockResolvedValue(undefined);
await taskService.toggleRecurringTaskComplete(fridayRecurringTask.id, date);
// Verify that the exact date was used
expect(taskService.updateProperty).toHaveBeenCalledWith(
fridayRecurringTask.id,
'complete_instances',
expect.arrayContaining([date])
);
}
});
it('should handle month boundaries correctly', async () => {
// Test with dates at month boundaries
const testCases = [
{ date: '2024-01-31', name: 'End of January' },
{ date: '2024-02-01', name: 'Start of February' },
{ date: '2024-02-29', name: 'Leap day' },
{ date: '2024-03-01', name: 'Start of March' }
];
for (const { date, name } of testCases) {
// Create a task that recurs on the specific day of week
const dayOfWeek = new Date(date + 'T00:00:00.000Z').getUTCDay();
const dayNames = ['SU', 'MO', 'TU', 'WE', 'TH', 'FR', 'SA'];
const dayName = dayNames[dayOfWeek];
const recurringTask = TaskFactory.createTask({
id: `task-${date}`,
title: `Task for ${name}`,
recurrence: `FREQ=WEEKLY;BYDAY=${dayName}`,
scheduled: date,
complete_instances: []
});
mockGetTodayString.mockReturnValue(date);
// Mock the vault operations
const mockFile = { path: `tasks/task-${date}.md` };
(taskService as any).plugin.vault.getAbstractFileByPath.mockReturnValue(mockFile);
(taskService as any).plugin.vault.modify.mockResolvedValue(undefined);
// Mock the task loading
jest.spyOn(taskService, 'loadTaskFromCache').mockResolvedValue(recurringTask);
jest.spyOn(taskService, 'updateProperty').mockResolvedValue(undefined);
await taskService.toggleRecurringTaskComplete(recurringTask.id, date);
// Verify that the exact date was used
expect(taskService.updateProperty).toHaveBeenCalledWith(
recurringTask.id,
'complete_instances',
expect.arrayContaining([date])
);
}
});
});
describe('Real-world scenarios', () => {
it('should handle user clicking "Mark as completed" on Friday', async () => {
const friday = '2024-01-12';
mockGetTodayString.mockReturnValue(friday);
// Mock the vault operations
const mockFile = { path: 'tasks/friday-task.md' };
(taskService as any).plugin.vault.getAbstractFileByPath.mockReturnValue(mockFile);
(taskService as any).plugin.vault.modify.mockResolvedValue(undefined);
// Mock the task loading and property update
jest.spyOn(taskService, 'updateProperty').mockResolvedValue(fridayRecurringTask);
// Simulate user clicking "Mark as completed"
await taskService.toggleStatus(fridayRecurringTask.id);
// Should add completion for Friday (today)
expect(taskService.updateProperty).toHaveBeenCalledWith(
fridayRecurringTask.id,
'complete_instances',
expect.arrayContaining([friday])
);
});
it('should handle user clicking on calendar date', async () => {
const specificFriday = '2024-01-19'; // Another Friday
// Mock the vault operations
const mockFile = { path: 'tasks/friday-task.md' };
(taskService as any).plugin.vault.getAbstractFileByPath.mockReturnValue(mockFile);
(taskService as any).plugin.vault.modify.mockResolvedValue(undefined);
// Mock the task loading and property update
jest.spyOn(taskService, 'updateProperty').mockResolvedValue(fridayRecurringTask);
// Simulate user clicking on a specific date in the calendar
await taskService.toggleRecurringTaskComplete(fridayRecurringTask.id, specificFriday);
// Should add completion for the specific Friday
expect(taskService.updateProperty).toHaveBeenCalledWith(
fridayRecurringTask.id,
'complete_instances',
expect.arrayContaining([specificFriday])
);
});
it('should handle task with existing completions', async () => {
const existingCompletion = '2024-01-05'; // Previous Friday
const newCompletion = '2024-01-12'; // This Friday
const taskWithCompletion = TaskFactory.createTask({
...fridayRecurringTask,
complete_instances: [existingCompletion]
});
// Mock the vault operations
const mockFile = { path: 'tasks/friday-task.md' };
(taskService as any).plugin.vault.getAbstractFileByPath.mockReturnValue(mockFile);
(taskService as any).plugin.vault.modify.mockResolvedValue(undefined);
// Mock the task loading and property update
jest.spyOn(taskService, 'updateProperty').mockResolvedValue(taskWithCompletion);
await taskService.toggleRecurringTaskComplete(taskWithCompletion.id, newCompletion);
// Should add the new completion while preserving existing ones
expect(taskService.updateProperty).toHaveBeenCalledWith(
taskWithCompletion.id,
'complete_instances',
expect.arrayContaining([existingCompletion, newCompletion])
);
});
});
});