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Testing DOM Storage Quota Implementation in NW.js

This test suite validates DOM storage quota functionality in NW.js using Selenium WebDriver. It automates browser interactions to verify storage limits and quota management, ensuring proper implementation of web storage constraints.

Test Coverage Overview

The test coverage focuses on DOM storage quota verification through automated browser testing.

Validates storage success conditions via DOM elements
Tests multiple storage operations through result elements
Verifies proper quota enforcement and success states
Covers cross-platform compatibility scenarios

Implementation Analysis

The testing approach utilizes Selenium WebDriver with Chrome options for NW.js app testing.

Key implementation patterns include:

Chrome WebDriver initialization with custom app directory
Implicit wait handling for DOM element availability
Element location and attribute validation
Automated cleanup through driver quit operations

Technical Details

Selenium WebDriver for browser automation
Chrome Options configuration for NW.js testing
Environment-based ChromeDriver path configuration
DOM element identification using ID selectors
Assertion-based validation of storage operations

Best Practices Demonstrated

The test implementation showcases robust automated testing practices for web storage functionality.

Proper test cleanup and resource management
Explicit success criteria validation
Error handling through try-finally blocks
Platform-independent test execution
Clear separation of setup and verification logic

nwjs/nwJs

test/sanity/dom-storage-quota/test.py

            
import time
import os
import shutil
import platform

from selenium import webdriver
from selenium.webdriver.chrome.options import Options

testdir = os.path.dirname(os.path.abspath(__file__))
chrome_options = Options()
chrome_options.add_argument("nwapp=" + testdir)

driver = webdriver.Chrome(executable_path=os.environ['CHROMEDRIVER'], chrome_options=chrome_options)
try:
    print(driver.current_url)
    driver.implicitly_wait(5)
    result = driver.find_element_by_id('result')
    print(result.get_attribute('innerHTML'))
    assert("success" in result.get_attribute('innerHTML'))
    result = driver.find_element_by_id('result2')
    print(result.get_attribute('innerHTML'))
    assert("success" in result.get_attribute('innerHTML'))
finally:
    driver.quit()