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Validating SDK Startup Stability in nw.js

This test suite validates NW.js SDK startup behavior to prevent crashes, utilizing Selenium WebDriver for automated browser testing. The test focuses on verifying proper window loading and version information display.

Test Coverage Overview

The test coverage ensures stable SDK initialization and window management in NW.js applications.

Verifies successful window loading with index.html
Validates version information display
Tests crash prevention during startup
Monitors window switching behavior

Implementation Analysis

The implementation leverages Selenium WebDriver with Chrome options for automated testing. The approach uses implicit waits and custom utility functions for reliable window state verification.

Custom Chrome configuration with nwapp argument
Page load strategy optimization
Window URL switching validation
Element presence verification

Technical Details

Selenium WebDriver with Chrome integration
Custom nw_util helper functions
ChromeDriver with verbose logging
Implicit wait timeout of 2 seconds
None page load strategy for performance
Environment-based ChromeDriver path configuration

Best Practices Demonstrated

The test implements robust automation practices for reliable SDK testing.

Proper test cleanup with driver.quit()
Try-finally block for resource management
Custom wait utilities for synchronization
Modular test structure with utility imports
Clear assertion messages

nwjs/nwJs

test/sanity/issue6171-sdk-start-crash/test.py

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

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__)))
capabilities = {"pageLoadStrategy": "none"}

driver = webdriver.Chrome(executable_path=os.environ['CHROMEDRIVER'], chrome_options=chrome_options, desired_capabilities = capabilities, service_log_path="log", service_args=["--verbose"])
driver.implicitly_wait(2)
try:
    print('waiting for crash')
    wait_switch_window_url(driver, 'index.html')
    result = wait_for_element_id(driver, 'versions')
    #print result
    assert('NWjs version' in result)
    print('There is no crash')
finally:
    driver.quit()