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Validating Node.js Require Methods Integration in NW.js

This test suite validates core Node.js require methods within the NW.js environment using Selenium WebDriver. It examines require.resolve, require.cache, and require.extensions functionality through automated browser testing.

Test Coverage Overview

The test coverage focuses on three critical Node.js require methods in the NW.js context.

Validates require.resolve functionality
Tests require.cache behavior
Verifies require.extensions implementation
Ensures proper integration between Node.js and Chromium contexts

Implementation Analysis

The testing approach utilizes Selenium WebDriver to automate Chrome browser interactions and validate require method behaviors.

Uses Chrome options to configure NW.js app context
Implements element location by ID for assertions
Leverages innerHTML attribute extraction for verification
Employs try-finally pattern for proper driver cleanup

Technical Details

Key technical components include:

Selenium WebDriver for browser automation
Chrome Options for NW.js app configuration
Environment variable for ChromeDriver path
HTML element assertions for validation
Python unittest framework integration

Best Practices Demonstrated

The test implementation showcases several testing best practices:

Proper resource cleanup in finally block
Clear assertion messages
Isolated test environment setup
Consistent error handling
Modular test structure

nwjs/nwJs

test/sanity/require-methods/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('require-resolve').get_attribute('innerHTML')
    print(result)
    assert('success' in result)
    result = driver.find_element_by_id('require-cache').get_attribute('innerHTML')
    print(result)
    assert('success' in result)
    result = driver.find_element_by_id('require-extensions').get_attribute('innerHTML')
    print(result)
    assert('success' in result)
finally:
    driver.quit()