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Validating Event Loading Sequence Implementation in nw.js

This test suite validates the proper loading and event handling sequence in NW.js applications using Selenium WebDriver. It specifically focuses on verifying DOM onload events and NW.js loaded events are triggered in the correct order.

Test Coverage Overview

The test provides comprehensive coverage of the NW.js application loading lifecycle.

Key areas tested include:

DOM onload event sequence
NW.js framework initialization
Event timing verification
Browser automation integration

Implementation Analysis

The implementation utilizes Selenium WebDriver with Chrome options to automate browser interactions. The test employs a wait-and-verify pattern to ensure proper event sequencing, using explicit content checks and timing controls to validate the application’s loading behavior.

Framework-specific features include:

Chrome WebDriver configuration
Custom NW.js app initialization
Element content verification
Automated cleanup procedures

Technical Details

Testing tools and configuration:

Selenium WebDriver for browser automation
Chrome Options for NW.js app configuration
Custom utility functions for element verification
Environment-based ChromeDriver path configuration
Implicit wait timing of 5 seconds
Try-finally block for proper resource cleanup

Best Practices Demonstrated

The test demonstrates several quality testing practices including proper resource management, explicit wait conditions, and robust error handling. Notable practices include:

Proper driver cleanup in finally block
Use of utility functions for element verification
Clear assertion conditions
Modular test structure
Environment variable usage for configuration

nwjs/nwJs

test/sanity/issue7306-loaded/test.py

            
import time
import os
import sys

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

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

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(5)
try:
    wait_for_element_id_content(driver, 'result', 'DOM onload event<br>NW.js loaded event<br>')
    driver.find_element_by_tag_name('a').click()
    time.sleep(1)
    result = driver.find_element_by_id('result').get_attribute('innerHTML')
    print(result)
    assert(result == 'DOM onload event<br>NW.js loaded event<br>')
finally:
    driver.quit()