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Testing Window Open Null Parameter Handling in NW.js

This test suite validates window opening behavior in NW.js applications using Selenium WebDriver for automation. It specifically tests handling of window.open() calls with null parameters, verifying both new instance creation and same instance reuse scenarios.

Test Coverage Overview

The test coverage focuses on window management functionality in NW.js applications, specifically verifying the behavior of window.open() calls. Key areas tested include:

New window instance creation
Same window instance reuse
Proper success state verification
Window handle management

Implementation Analysis

The implementation uses Selenium WebDriver with Python to automate browser interactions. The test leverages Chrome options for NW.js app configuration and implements a systematic approach to window management verification.

Key patterns include explicit waits, element location by ID, and attribute verification through innerHTML checks.

Technical Details

Selenium WebDriver for browser automation
Chrome Options for NW.js app configuration
Python test implementation
Implicit wait timing of 2 seconds
Chrome driver with verbose logging
Element location by ID selectors

Best Practices Demonstrated

The test demonstrates several testing best practices including proper resource cleanup in finally blocks, explicit success criteria validation, and clear test case separation. The code organization follows a linear flow with setup, execution, and verification phases clearly defined.

Proper exception handling
Resource cleanup
Clear success criteria
Systematic verification approach

nwjs/nwJs

test/sanity/issue4691-win-open-null/test.py

            
import time
import os
import subprocess

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, service_log_path="log", service_args=["--verbose"])
driver.implicitly_wait(2)
try:
    print(driver.current_url)
    driver.find_element_by_id('new-inst').click()
    result = driver.find_element_by_id('new-inst-result').get_attribute('innerHTML')
    print('opening new instance returned "%s"' % result)
    assert('success' in result)
    driver.find_element_by_id('same-inst').click()
    result = driver.find_element_by_id('same-inst-result').get_attribute('innerHTML')
    print('opening same instance returned "%s"' % result)
    assert('success' in result)
finally:
    driver.quit()