Summary: I have set up Selenium hub on my Mac and launched two browsers, but the test only runs in one. What could be causing this issue?
I recently installed Selenium hub on my Mac running OS X 10.11.5 using the instructions from this link. After installation, I launched the hub in a terminal tab with the following command:
selenium-standalone start -- -role hub
Next, in another terminal tab on the same machine, I registered a node as follows:
selenium-standalone start -- -role node -hub http://localhost:4444/grid/register -port 5556
Upon checking the console, I can see that there are 5 available Firefox and Chrome browsers.
In my Python file named globes.py, I have defined the desired capabilities for each browser like so:
class globes:
def __init__(self, number):
self.number = number
base_url = "https://fake-example.com"
desired_cap = []
desired_cap.append ({'browserName':'chrome', 'javascriptEnabled':'true', 'version':'', 'platform':'ANY'})
desired_cap.append ({'browserName':'firefox', 'javascriptEnabled':'true', 'version':'', 'platform':'ANY'})
selenium_server_url = 'http://127.0.0.1:4444/wd/hub'
The test I am attempting to run looks like this:
import unittest
from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import Select
from selenium.common.exceptions import NoSuchElementException
from globes import *
class HeroCarousel(unittest.TestCase):
def setUp(self):
for driver_instance in globes.desired_cap:
self.driver = webdriver.Remote(
command_executor=globes.selenium_server_url,
desired_capabilities=driver_instance)
self.verificationErrors = []
def test_hero_carousel(self):
driver = self.driver
driver.get(globes.base_url)
hero_carousel = driver.find_element(By.CSS_SELECTOR, 'div.carousel-featured')
try: self.assertTrue(hero_carousel.is_displayed())
except AssertionError, e: self.verificationErrors.append("home_test: Hero Carousel was not visible")
def tearDown(self):
self.driver.close()
self.assertEqual([], self.verificationErrors)
if __name__ == "__main__":
unittest.main()
Although both Firefox and Chrome browsers are launched, the test runs only in Firefox. Chrome does not execute the test and remains on a blank page without closing. I suspect there might be an issue with how I have structured the test. Can someone point out what I might be missing? I recently started learning Python specifically for writing Selenium tests, so any guidance would be appreciated.
I believe the hub is functioning correctly since it launches both browsers. I attempted adding a second node on a different port on the same machine, but encountered the same problem. Here's the output from the hub for reference:
INFO - Got a request to create a new session: Capabilities [{browserName=chrome, javascriptEnabled=true, version=, platform=ANY}]
INFO - Available nodes: [http://192.168.2.1:5557]
INFO - Trying to create a new session on node http://192.168.2.1:5557
INFO - Trying to create a new session on test slot {seleniumProtocol=WebDriver, browserName=chrome, maxInstances=5, platform=MAC}
INFO - Got a request to create a new session: Capabilities [{browserName=firefox, javascriptEnabled=true, version=, platform=ANY}]
INFO - Available nodes: [http://192.168.2.1:5557]
INFO - Trying to create a new session on node http://192.168.2.1:5557
INFO - Trying to create a new session on test slot {seleniumProtocol=WebDriver, browserName=firefox, maxInstances=5, platform=MAC}