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Testing localStorage URL Crash Prevention in NW.js

This test suite validates the handling of localStorage.getItem() behavior with URL parameters in NW.js, specifically focusing on crash prevention. The test ensures proper null handling and URL state management across different platforms.

Test Coverage Overview

The test suite provides coverage for localStorage.getItem() functionality with specific focus on URL-related crash scenarios.

Key areas covered include:

Platform-specific execution handling (Darwin/Mac skipping)
URL state verification
Null value handling in localStorage operations
Crash prevention validation

Implementation Analysis

The implementation utilizes Selenium WebDriver for browser automation, with Chrome-specific configurations for NW.js testing.

Notable patterns include:

Chrome WebDriver initialization with custom options
Implicit wait implementation for element synchronization
Try-finally block structure for proper driver cleanup
Platform-aware test execution

Technical Details

Testing infrastructure includes:

Selenium WebDriver for browser automation
Chrome Options configuration for NW.js app testing
Custom utility functions from nw_util
Platform detection mechanisms
Environment variable integration for ChromeDriver path

Best Practices Demonstrated

The test demonstrates robust testing practices including proper resource cleanup, platform-specific handling, and explicit assertion checks.

Key practices include:

Proper driver initialization and cleanup
Platform-specific test skipping
Clear assertion messages
Structured error handling
Modular test organization

nwjs/nwJs

test/sanity/issue5947-localStorage_getItem_url_crash/test.py

            
import time
import os
import platform
import sys

if platform.system() == 'Darwin':
    print('Skipped for Mac platform')
    sys.exit(0)

sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
from nw_util import *

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)
driver.implicitly_wait(2)
try:
    print(driver.current_url)
    res = wait_for_element_id_content(driver, "result", "URL is: null")
    print(res)
    assert("URL is: null" in res)
    print("There is no crash")

finally:
    driver.quit()