# My Weekly To Do List - Comprehensive Test Plan

## Overview

This document outlines the comprehensive test strategy for the My Weekly To Do List application, a Next.js-based web application that provides a weekly view for organizing tasks and calendar events with drag-and-drop functionality.

## Application Architecture

The application follows a standard Next.js 14 architecture with:
- Server-side rendering with Next.js App Router
- TypeScript for type safety
- React components for UI
- Tailwind CSS for styling
- Zustand for state management
- React DnD for drag-and-drop functionality

## Core Components

1. **Main Pages**:
   - `/` - Redirects to `/tasks`
   - `/tasks` - Main task management page

2. **Components**:
   - `WeeklyCalendarView` - Displays tasks in a weekly grid
   - `TaskForm` - Form for adding new tasks
   - `TaskItem` - Individual task display and editing
   - `TaskList` - Container for tasks in a day
   - `CalendarSettings` - Calendar integration settings

3. **Key Features**:
   - Weekly task view organized by day
   - Drag and drop between days
   - Calendar integration (Google, Apple)
   - Responsive design
   - Accessible UI (WCAG 2.1 AA compliant)

## Test Suites

### 1. Authentication Tests

#### User Login Flow
- Navigate to application homepage
- Enter valid username/password credentials
- Verify successful authentication and redirection
- Attempt login with invalid credentials
- Verify error handling for invalid credentials

#### User Registration Flow
- Navigate to registration page
- Fill registration form with valid data
- Verify successful registration and redirection
- Attempt registration with duplicate email
- Verify error handling for duplicate emails

### 2. Task Management Tests

#### Add New Task
- Navigate to tasks page
- Fill task form with valid data
- Submit form and verify task creation
- Confirm task appears in correct day column
- Verify form resets after submission

#### Edit Existing Task
- Navigate to tasks page
- Click edit button on existing task
- Modify task details and save
- Verify task updates with new values
- Confirm changes reflect in daily view

#### Delete Task
- Navigate to tasks page
- Click delete button on task
- Verify task removal from list
- Confirm deleted task no longer appears

#### Task Validation
- Navigate to task creation form
- Submit form without required fields
- Verify validation error messages
- Submit form with invalid time format
- Confirm time validation errors

### 3. Weekly View Navigation Tests

#### Week Navigation Controls
- Navigate to weekly view
- Click 'Previous Week' button
- Verify display moves to previous week
- Click 'Next Week' button
- Verify display moves to next week

#### Keyboard Navigation
- Navigate to weekly view
- Press Left Arrow key
- Verify week navigation moves backward
- Press Right Arrow key
- Verify week navigation moves forward

### 4. Drag and Drop Tests

#### Task Drag and Drop Between Days
- Navigate to weekly view
- Drag task from one day column to another
- Verify task drops correctly
- Confirm task appears in new day column
- Verify task data integrity

#### Drag and Drop Edge Cases
- Try dragging task to same day
- Verify no action occurs or repositioning
- Try dragging non-existent task
- Verify graceful failure handling

### 5. Calendar Integration Tests

#### Calendar Settings Modal
- Navigate to calendar settings
- Open calendar settings modal
- Configure calendar integration settings
- Verify settings save successfully
- Confirm integration status updates

## Test Strategy

### Happy Path Testing
- Execute primary user flows in sequence
- Verify all expected elements are present
- Validate successful completion of operations

### Edge Case Testing
- Test boundary conditions for inputs
- Handle invalid data gracefully
- Test unexpected user interactions
- Verify error messages are informative

### Negative Testing
- Attempt invalid operations
- Provide invalid inputs
- Test without required permissions
- Verify graceful degradation

### Accessibility Testing
- Verify WCAG 2.1 AA compliance
- Test keyboard navigation
- Check screen reader compatibility
- Validate proper ARIA attributes

## Technical Implementation Details

### Test Framework
- Playwright for end-to-end testing
- TypeScript for type safety
- Parallel test execution for efficiency

### Test Structure
- Each test has clear title and steps
- Specific expected outcomes defined
- Independent test cases that can run in any order
- Comprehensive error handling and validation

## Assumptions

1. Application runs on localhost:3001 (development server)
2. All components are properly rendered
3. Network connectivity allows for API calls
4. Required environment variables are configured
5. Users have basic computer literacy for interactions

## Success Criteria

1. All test cases pass with expected outcomes
2. UI elements respond appropriately to user actions
3. Data consistency is maintained throughout operations
4. Error handling prevents application crashes
5. Performance meets acceptable thresholds

## Limitations

1. Some tests may require mock API endpoints
2. Calendar integration tests may require real account credentials
3. Some drag-and-drop behavior might be environment-dependent
4. Accessibility tests may require manual verification tools

## Future Enhancements

1. Add API integration tests for backend services
2. Implement performance testing for large datasets
3. Expand cross-browser compatibility testing
4. Add mobile-specific testing scenarios