api testing using python requests

api testing using python requests

Here's a comprehensive guide on how to perform API testing using Python and the requests library.

What is API Testing?

API (Application Programming Interface) testing involves verifying that an application's API functions as expected, returning the correct data and responses. This process ensures that APIs are reliable, secure, and efficient for consuming applications.

Why Use Python Requests?

The requests library in Python provides a simple, intuitive way to send HTTP requests and interact with web services. Its popularity stems from its ease of use, flexibility, and extensive community support. Here's why you should choose Python requests for API testing:

How to Use Python Requests for API Testing

Here's a step-by-step guide on how to use the requests library for API testing:

pip install requests

import requests

api_endpoint = "https://api.example.com/users"
method = "GET"

headers = {"Authorization": "Bearer YOUR_API_KEY"}
params = {"page": 1}

response = requests.request(method, api_endpoint, headers=headers, params=params)

if response.status_code == 200:
print("API returned a successful response!")
else:
print(f"API returned an error: {response.text}")

try:
response = requests.request(method, api_endpoint, headers=headers, params=params)
except requests.exceptions.RequestException as e:
print(f"Error occurred: {e}")

Best Practices and Tips

When using Python requests for API testing:

By following these steps and best practices, you can effectively use Python requests to perform API testing and ensure the reliability and security of your APIs.

playwright python api testing

I'd be happy to help with that! Here's a detailed guide on how to use the Python API for playwright:

What is Playwright?

Playwright is a Node.js library to automate Chromium, Firefox and WebKit with a single API. It provides high-level APIs and interfaces first-class support for browsers ecosystem. You can run your test scripts in parallel across multiple browsers and platforms.

Getting Started with Playwright Python API

To use the Playwright Python API, you need to install it using pip:

pip install playwright

Once installed, you can import the playwright module in your Python script:

import asyncio
from playwright.core import Playwright, Browser, Page

Launching a Browser

You can launch a browser instance using the Playwright().launch() method:

async def run():
playwright = Playwright()
browser = await playwright.chromium.launch(headless=False)
page = await browser.new_page()
Your test script here...
await page.close()
await browser.close()

Creating a New Page

To create a new page, you can use the browser.new_page() method:

page = await browser.new_page()

You can then navigate to a URL using the page.goto() method:

await page.goto('https://example.com')

Waiting for Elements

Playwright provides several methods for waiting for elements, such as:

await page.wait_for_selector('#my-element')

Filling Out Forms

To fill out forms, you can use the page.fill() method:

await page.fill('input[name="username"]', 'your-username')

Submitting Forms

To submit a form, you can use the page.click() method:

await page.click('button[type="submit"]')

Verifying Page Content

Playwright provides several methods for verifying page content, such as:

assert await page.contains_text('Example Text')

Asynchronous Testing

Playwright provides support for asynchronous testing using the asyncio library:

import asyncio
async def run():
playwright = Playwright()
browser = await playwright.chromium.launch(headless=False)
page = await browser.new_page()
Your test script here...
await page.close()
await browser.close()
asyncio.run(run())

Parallel Testing

Playwright provides support for parallel testing using the concurrent.futures library:

import concurrent.futures
def run_tests(tests):
with Playwright() as pwa:
browsers = [pwa.chromium.launch(headless=False) for _ in range(3)]
pages = [browser.new_page() for browser in browsers]
Run your tests here...
for page in pages:
await page.close()
for browser in browsers:
await browser.close()
def main():
with concurrent.futures.ThreadPoolExecutor(max_workers=3) as executor:
futures = {executor.submit(run_tests, tests): tests for _ in range(3)}
for future in futures:
run_tests(future.result())
if name == "main":
main()

This is just a basic overview of how to use the Playwright Python API. You can learn more about its features and capabilities by visiting their official documentation.

Advantages

Disadvantages

In conclusion, the Playwright Python API provides a powerful way to automate browser-based testing and offers many advantages over traditional testing approaches. However, it also has some limitations that you should consider when deciding whether to use it in your project.