API Testing Completed

API Testing Framework

Comprehensive API testing for FinTech startup, ensuring security and reliability

Role QA Engineer
Duration 5 months
Team Size 3 members
Year 2024
View on GitHub β†— Live Demo β†’

Technology Stack

Postman
Node.js
REST API
Newman
Jenkins
JavaScript
MongoDB
Git

Project Overview

Developed a comprehensive test automation framework for a high-traffic e-commerce platform processing over 10,000 daily transactions. The framework reduced manual testing time by 70% and increased test coverage from 40% to 85%.

Implemented end-to-end testing, API testing, and performance testing suites with parallel execution capabilities. Integrated with CI/CD pipeline for automated regression testing on every deployment.

Key Features

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Test Automation

800+ automated test cases covering critical user journeys, payment flows, and inventory management.

  • Page Object Model architecture
  • Data-driven testing
  • Parallel execution support
πŸ”„

CI/CD Integration

Seamless integration with Jenkins pipeline for automated testing on every commit and deployment.

  • Automated smoke tests
  • Scheduled regression runs
  • Slack notifications
πŸ“Š

Reporting

Comprehensive test reports with screenshots, video recordings, and detailed failure analysis.

  • Allure Reports integration
  • Historical trend analysis
  • Failure categorization

Performance

Load testing and performance monitoring to ensure platform stability under high traffic.

  • JMeter test scripts
  • API response time tracking
  • Resource utilization monitoring

Code Showcase

Sample implementation demonstrating framework architecture

Python test_checkout.py 
import pytest
from pages.product_page import ProductPage
from pages.cart_page import CartPage
from pages.checkout_page import CheckoutPage

@pytest.mark.smoke
def test_successful_checkout(driver, test_data):
    """Test complete checkout flow with valid payment"""
    
    # Add product to cart
    product_page = ProductPage(driver)
    product_page.navigate_to(test_data['product_url'])
    product_page.add_to_cart()
    
    # Proceed to checkout
    cart_page = CartPage(driver)
    cart_page.proceed_to_checkout()
    
    # Complete purchase
    checkout_page = CheckoutPage(driver)
    checkout_page.fill_shipping_info(test_data['shipping'])
    checkout_page.select_payment_method('credit_card')
    checkout_page.enter_payment_details(test_data['payment'])
    checkout_page.place_order()
    
    # Verify success
    assert checkout_page.is_order_confirmed()
    assert checkout_page.get_order_number() is not None

Results & Impact

70%
Reduction in Manual Testing

Automated 800+ test cases, freeing up QA team for exploratory testing

85%
Test Coverage

Increased from 40% to 85% coverage across all critical features

90%
Defect Detection Rate

Caught 90% of bugs before production deployment

50%
Faster Release Cycles

Reduced testing time from 2 weeks to 1 week per release

Challenges & Solutions

Challenge

Flaky Tests

Initial test suite had 20% failure rate due to timing issues and unstable test environment.

Solution

Stability Improvements

Implemented explicit waits, retry logic, and isolated test data. Reduced flakiness to under 2%.

Challenge

Test Execution Time

Full regression suite took 6+ hours to complete, slowing down release cycles.

Solution

Parallel Execution

Implemented parallel test execution across 8 nodes, reducing runtime to 45 minutes.

Screenshots

Test reports, dashboards, and framework architecture

Test Report Dashboard
Test Report Dashboard - Overall test execution status
CI/CD Pipeline
Jenkins Pipeline - Automated test execution
Test Coverage
Coverage Report - 85% test coverage achieved
Framework Architecture
Framework Architecture - Page Object Model design

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