Test script for webpages that have captcha

Author: ShubhraJain

Selenium/captcha.py

@@ -0,0 +1,33 @@
+# This program illustrates a technique that can be used on pages that have 
+# a captcha.
+# A Captha input can never by completely automated via Selenium. Usual workaround
+# is to sleep for some time to allow the user (usually the Tester) to enter captcha
+# text in input field. 
+
+# But in this example we are using WebDriverWait to allow the tester enough time to
+# manually enter the captcha text, but as soon as the captcha is entered, the test can
+# proceed. This is better than time.sleep()
+
+from selenium import webdriver
+from selenium.webdriver.common.keys import Keys
+from selenium.webdriver.support.ui import WebDriverWait
+
+driver = webdriver.Firefox()
+# This opens up contact trainer page on http://hadoopbigdatatutorial.com/
+driver.get("http://hadoopbigdatatutorial.com/home/contact_trainer/hadoop-development")
+
+def check_captcha_length(driver):
+    """
+    This function finds the captcha INPUT element and 
+    returns true when length of input text entered
+    is greater than 2 characters.
+    """
+    elem = driver.find_element_by_css_selector("input.captcha_input[name='userCaptcha']")
+    return len(elem.get_attribute('value')) > 2
+
+# return true if captcha input is filled with a text of length more than 2 in 30 seconds
+result = WebDriverWait(driver, 30).until(check_captcha_length)
+
+# print title of the webpage
+print(driver.title)
+driver.close()