xpathwebdriver 1.3.4

Simpler selenium/webdriver API through a wrapper

Codeship Status for joaduo/xpathwebdriver

A python wrapper for interacting with Selenium through XPath and CSS selectors. The main difference is that you can use use XPaths like:

//div/text()

Which will return you a string, something webdriver API makes more complicated. Means you can write all your tests based on XPath without having to do heavy python manipulation of the resulting objects.

Also adds:

• Interactive shell for testing XPath manually and easily against a live browser

• Multiple browser management

• Browser life management (wether to keep the browser open or kill it on exit)

• Useful settings for local and remote (headless) testing

  • Also supports environment variables as settings

  • Plus allowing custom settings that you can also push through environment variables

• Screenshots comparison and diff management

• Virtual display management (so you cah run “headless” in a remote instance)

  • you can use VNC to access the remote Browser

Ubuntu quick installation

You can opt to use Chromium to simplify installation:

sudo apt-get install -y python3-pip imagemagick findimagedupes tightvncserver xserver-xephyr xvfb unzip chromium-browser chromium-chromedriver
sudo pip3 install xpathwebdriver Pillow ipython

You can quickly test it running:

xpathshell

That will open an interactive shell with a browser object. Use TAB to autocomplete available API. Use browser.driver to directly access the webdriver object.

General installation

pip install xpathwebdriver

1. Install xpathwebdriver using pip.

2. Install google chrome.

3. Download chromedriver for your chrome version and install it in your path. https://chromedriver.chromium.org/downloads

4. That generally should work on a modern Linux System (not tested but should also work on other oses). Try example in section below

5. For image comparison install pip install Pillow, findimagedupes and imagemagick packages for your OS. (they are not automatically installed to keep basic requirments low) On ubuntu: sudo apt install imagemagick findimagedupes

6. For interactive shell install pip install ipython

Check “Installing Selenium” section for other browsers and details.

Example

from xpathwebdriver.browser import Browser

browser = Browser()
browser.get_url('https://duckduckgo.com/')
browser.fill(".//*[@id='search_form_input_homepage']", 'xpathwebdriver\n')
# Using xpath that returns text
for idx, t in enumerate(browser.select_xpath('//div/text()')):
    print(idx, t)
# Using css selector which returns elements
for idx, elem in enumerate(browser.select_css('.result__title')):
    print(idx, elem.text)

Documentation and tutorials

• Check examples directory

• The BrowserAPI.md file has a quick list of Browser’s API

• Use xpathsell -e to print available environment variables for settings

• Use xpathsell --settings-help to print settings detailed documentation

  • or optionally check xpathwebdriver/default_settings.py

IPython interactive shell

For a faster development and debugging cycles you can run an interactive shell which will let access the browser. First install ipython pip install ipython (not automatically installed to keep basic requirements low)

Then you can run the xpathshell in your terminal. You should see something like:

$ xpathshell
Python 3.7.5rc1 (default, Oct  8 2019, 16:47:45)
Type 'copyright', 'credits' or 'license' for more information
IPython 7.9.0 -- An enhanced Interactive Python. Type '?' for help.

XpathBrowser in 'b' or 'browser' variables
 Current url: data:,
In [1]: b.get('github.com/joaduo/xpathwebdriver/')
INFO 05:53:35:  Current url: https://github.com/joaduo/xpathwebdriver/

Or pass the url in the command arguments. Eg: xpathshell github.com/joaduo/xpathwebdriver/

Inside IPython you can enter browser.select_xpath? to get documentation and can access API docs.

More XpathBrowser details at:

• https://github.com/joaduo/xpathwebdriver/blob/master/BrowserAPI.md

• https://github.com/joaduo/xpathwebdriver/blob/master/xpathwebdriver/xpath_browser.py

• https://github.com/joaduo/xpathwebdriver/blob/master/xpathwebdriver_tests/test_XpathBrowser.py

Using unittest library

import unittest
from xpathwebdriver.browser import Browser

class SearchEnginesDemo(unittest.TestCase):
    def setUp(self):
        # Get Xpath browser
        self.browser = Browser()

    def tearDown(self):
        # Make sure we quit those webdrivers created in this specific "level of life"
        del self.browser

    def test_duckduckgo(self):
        # Load a local page for the demo
        self.browser.get_url('https://duckduckgo.com/')
        # Type xpathwebdriver and press enter
        self.browser.fill(".//*[@id='search_form_input_homepage']", 'xpathwebdriver\n')

Check a more options in the examples directory.

Installing Selenium

To make sure you installed selenium and webdriver correctly use the code below:

from selenium import webdriver
import time
driver = webdriver.Chrome()
driver.maximize_window()
driver.get('https://www.google.com')
print('You can 10 secs to check the browser window')
time.sleep(10)

Find the easiest way to install selenium in your environment.

Then install driver for chrome and gecko from:

• https://www.seleniumhq.org/download/#thirdPartyDrivers

• http://chromedriver.chromium.org/

• https://github.com/mozilla/geckodriver/releases

• PhantomJs: http://phantomjs.org/download.html (has the driver embedded)

Decompressed executables should be in yor PATH. If you update python’s webdriver package make sure you update browsers and drivers.

Useful links for working with XPath

• https://addons.mozilla.org/es/firefox/addon/firebug/

• https://addons.mozilla.org/es/firefox/addon/firepath/

• http://ricostacruz.com/cheatsheets/xpath.html

• http://xpath.alephzarro.com/content/cheatsheet.html

Killing processes hanging around

Depeding on your configuration from virtualdisplay and browser, processes like:

Xvnc
Xvfb
Xephyr
chromedriver
...

may keep hanging arround. You may want to kill them

# check the wanted process is alive
ps faux | grep Xvnc
# and you can kill it. If you are running as root, make sure you are not killing someone else's process too
pkill Xvnc