What’s selenium?

The python tool can automate web ui behavior.

Prepare

  • Install selenium 
    python -m pip install selenium
  • Download a web driver for the browser. chrome-driver.
  • A simple web browser Fenix.

Simple example

I will create a home page at hdocs directory in my web server. There are two buttons hello and world. I will simulate to click the world button. And it will show an alert message.

index.html

<html>
<div>
    <script>
    function print(){
        alert("world");
    }
    </script>
    <button>hello</button>
    <button onclick="print()">world</button>
</div>
</html>

test.py

from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.common.by import By
driver = webdriver.Chrome("[Location]\chromedriver.exe")
driver.get("http://127.0.0.1:81/")
#assert "127.0.0.1" in driver.title
elems=driver.find_elements(By.XPATH, '//button')
for e in range(len(elems)):
    if e==1:
        elems[e].send_keys(Keys.RETURN)
    print(elems[e].text)
"""
elem = driver.find_element_by_name("q")
elem.clear()
elem.send_keys("pycon")
elem.send_keys(Keys.RETURN)
"""
#assert "No results found." not in driver.page_source
#driver.close()

Reference