Back to Repositories

Testing Worker Stream Event Handling in NW.js

This test suite validates worker stream events in NW.js using Selenium WebDriver. It ensures proper event handling between Node.js workers and the main thread through automated browser testing.

Test Coverage Overview

The test coverage focuses on validating worker stream event functionality in NW.js applications.

Key areas tested include:

Worker stream event propagation
Node.js worker integration
Event handling verification
Browser-worker communication

The test ensures proper event flow between worker threads and the main application context.

Implementation Analysis

The implementation utilizes Selenium WebDriver with Chrome options specifically configured for NW.js testing. The approach combines browser automation with Node.js worker capabilities to validate event streaming.

Key patterns include:

Chrome WebDriver initialization with NW.js arguments
Implicit wait handling for async operations
DOM element verification for test results
Automated cleanup through driver quit

Technical Details

Testing tools and configuration:

Selenium WebDriver for browser automation
Chrome Options for NW.js specific settings
Environment variable for ChromeDriver path
Node worker enablement flags
Implicit wait timeout of 5 seconds

Best Practices Demonstrated

The test implementation showcases several testing best practices for worker stream validation.

Notable practices include:

Proper resource cleanup in finally block
Environment-based driver configuration
Explicit assertion checking
Structured setup and teardown
Clear success criteria definition

nwjs/nwJs

test/sanity/worker-stream-event/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__)))
chrome_options.add_nw_argument("--enable-node-worker")

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