End-to-End Cypress Testing Project

Project Overview

This project implements end-to-end testing for a Notes application using Cypress, a modern web testing framework. The tests are designed to verify the functionality of a full-stack Notes application, ensuring that all user interactions work as expected.

Detailed Test Coverage

1. Application Reset and Setup

• Before each test, the application state is reset using a dedicated testing endpoint
• A test user is created with predefined credentials
• The application ensures a clean state for each test case

2. Authentication Testing

• Front Page Verification
  • Checks if the main page loads correctly
  • Verifies the presence of application title and header
• Login Functionality
  • Tests failed login attempts with incorrect credentials
  • Validates error message styling (red color and border)
  • Verifies successful login with correct credentials
  • Confirms user session establishment

3. Note Management

• Note Creation
  • Tests the ability to create new notes
  • Verifies note persistence and display
• Note Properties
  • Tests importance toggling functionality
  • Verifies multiple notes handling
  • Checks note content display

Technical Details

Environment Configuration

The project uses environment variables for flexible configuration:

• Backend URL configuration
• Test user credentials
• Other environment-specific settings

Test Data Management

• Uses Cypress fixtures for data mocking
• Implements proper test isolation
• Maintains consistent test data across runs

Custom Commands

The project includes custom Cypress commands for:

• User login
• Note creation
• State management

Best Practices Implemented

1. Test Independence

   • Each test runs in isolation
   • State is reset before each test
   • No dependencies between test cases

2. Proper Selectors Usage

   • Uses data-testid attributes for reliable element selection
   • Implements best practices for DOM traversal
   • Avoids brittle selectors

3. Error Handling

   • Validates error states
   • Checks error message content and styling
   • Ensures proper user feedback