Test-cases

Testing : 

• It involves identifying bug/error/defect in a software without correcting it.

• Testing is the process of evaluating a system or its component(s) with the intent to find whether it satisfies the specified requirements or not.

Debugging : 

• It involves identifying and fixing the problems/bugs. 

Who does Testing?

• In the IT industry, large companies have a team with responsibilities to evaluate the developed software in context of the given requirements. 

different types of testing:

• Manual Testing

• Automation Testing

Manual Testing:

• Manual testing includes testing a software manually, i.e., without using any automated tool or any script.

Automation Testing:

• Automation testing, which is also known as Test Automation, is when the tester writes scripts and uses another software to test the product.

• Selenium

• QTP

• Jmeter

• Loadrunner

• TestLink

• Quality Center(ALM)

Selenium

It is a software testing tool used for regression testing. It is an open source testing tool that provides playback and recording facility for regression testing. The Selenium IDE only supports Mozilla Firebox web browser.

• It provides the provision to export recorded script in other languages like Python,Java, Ruby, C#.

• It can execute multiple tests at a time

• Autocomplete for Selenium commands that are common Walk through tests

• Identifies the element using id, name , X-path, etc.

• Store tests as Python Script,Ruby Script, HTML, and any other format.

• It provides an option to assert the title for every page

• It supports selenium user-extensions file

• It allows to insert comments in the middle of the script for better understanding and debugging

In-order to work with selenium with python program first we install selenium.

pip install selenium

we are testing web-applications through web browsers, we need some web-browser related drivers.download that drivers and install that drivers.

download and install geckodriver for Chrome or Firefox or IE.

What is Gecko and GeckoDriver? 

• Gecko is a web browser engine used in many applications developed by Mozilla Foundation and the Mozilla Corporation.

• Gecko Driver is the link between your tests in Selenium and the Firefox browser.

•  GeckoDriver is a proxy for using W3C WebDriver-compatible clients to interact with Gecko-based browsers i.e. Mozilla Firefox

example1:

from selenium import webdriver

browser=webdriver.Chrome()

browser.get('https://www.facebook.com')

example2:

from selenium import webdriver

from selenium.webdriver.common.keys import Keys

import time

browser=webdriver.Chrome()

browser.get('https://www.facebook.com')

element=browser.find_element_by_name('email')

element.send_keys('divyakola43@gmail.com'+Keys.RETURN)

element1=browser.find_element_by_name('pass')

element1.send_keys('sivakrishna143'+Keys.RETURN)

example3:

import time

from selenium import webdriver

from selenium.webdriver.common.action_chains import ActionChains

from selenium.webdriver.common.keys import Keys

driver = webdriver.Chrome()

driver.get('http://google.com')

element = driver.find_element_by_link_text('About')

ActionChains(driver) \

    .key_down(Keys.CONTROL) \

    .click(element) \

    .key_up(Keys.CONTROL) \

    .perform()

time.sleep(30) # Pause to allow you to inspect the browser.

driver.quit()

example4:

from selenium import webdriver

from selenium.webdriver.common.keys import Keys

browser = webdriver.Chrome()

browser.get('http://www.yahoo.com')

elem = browser.find_element_by_name('p')  # Find the search box

elem.send_keys('seleniumhq' + Keys.RETURN)

browser.quit()

example5:

from selenium import webdriver

from selenium.webdriver.common.keys import Keys

driver = webdriver.Chrome()

driver.get("http://www.python.org")

assert "Python" in driver.title

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()

example6: unittest

import unittest2 as unittest

from selenium import webdriver

from selenium.webdriver.common.keys import Keys

class PythonOrgSearch(unittest.TestCase):

    def setUp(self):

        self.driver = webdriver.Chrome()

    def test_search_in_python_org(self):

        driver = self.driver

        driver.get("http://www.python.org")

        self.assertIn("Python", driver.title)

        elem = driver.find_element_by_name("q")

        elem.send_keys("pycon")

        elem.send_keys(Keys.RETURN)

        assert "No results found." not in driver.page_source

    def tearDown(self):

        self.driver.close()