Back to Repositories

Testing iframe Window Object Isolation in NW.js

This test suite validates iframe behavior and window object access in NW.js applications using Selenium WebDriver. It checks proper object isolation and undefined property handling between iframes and the main window context.

Test Coverage Overview

The test coverage focuses on iframe security boundaries and window object access patterns in NW.js applications. Key functionality tested includes:

Window object type verification in iframe context
Undefined property access validation across frame boundaries
Cross-frame object isolation checks

Implementation Analysis

The test implementation utilizes Selenium WebDriver with Python to automate browser interactions and assertions. The approach leverages Chrome options for NW.js app loading and element location strategies for accessing iframe content.

Key patterns include direct DOM element access using find_element_by_id() and innerHTML attribute extraction for verification.

Technical Details

Testing tools and configuration:

Selenium WebDriver with Chrome driver
Python test runner
Chrome Options for NW.js app configuration
Element location by ID selectors
Automated cleanup with driver.quit()

Best Practices Demonstrated

The test demonstrates strong testing practices including proper test isolation, explicit waits, and cleanup. Notable practices:

Try-finally block for reliable driver cleanup
Explicit assertions for validations
Clear element selection strategy
Proper error handling and resource management

nwjs/nwJs

test/sanity/iframe-nw/test.py

            
import time
import os

from selenium import webdriver
from selenium.webdriver.chrome.options import Options
chrome_options = Options()
chrome_options.add_argument("nwapp=" + os.path.dirname(os.path.abspath(__file__)))

driver = webdriver.Chrome(executable_path=os.environ['CHROMEDRIVER'], chrome_options=chrome_options)
try:
    print(driver.current_url)
    result = driver.find_element_by_id('result').get_attribute('innerHTML')
    print(result)
    assert("object" == result)
    result2 = driver.find_element_by_id('result2').get_attribute('innerHTML')
    print(result2)
    assert("undefined" == result2)
finally:
    driver.quit()