I will show how to create test automation with ddt and python, with code clean and adaptable in Real Project: Part 3

Appeared an unexpected pre-requirement of our client, our client asked that the tests they are run on multiple browsers, Firefox, Chrome, Internet Explorer by default, of dynamic form and simple. For this lets go now create another class, class with the browsers name, with function to set browser specific chosen and return the browser instantiated.


Create directory classes and create browsers.py:
Our class for example:

__author__ = 'Reinaldo Mateus Rossetti Junior'
from selenium import webdriver
from selenium.webdriver.common.desired_capabilities import DesiredCapabilities

class browsers(object):

    def setBrowser(self,browser):

        if browser == "FIREFOX":
            #Running Standalone Selenium Server for use with RemoteDrivers, port 4441
            WEB_DRIVER = webdriver.Remote(command_executor='http://127.0.0.1:4441/wd/hub',
                   desired_capabilities=DesiredCapabilities.FIREFOX)
            return WEB_DRIVER

        elif browser == "CHROME":
            WEB_DRIVER = webdriver.Remote(command_executor='http://127.0.0.1:4441/wd/hub',
                   desired_capabilities=DesiredCapabilities.CHROME)
            return WEB_DRIVER

        elif browser == "IE":
            WEB_DRIVER = webdriver.Remote(command_executor='http://127.0.0.1:4441/wd/hub',
                   desired_capabilities=DesiredCapabilities.INTERNETEXPLORER)
            return WEB_DRIVER

Now let's go change login_password_ok.csv, include new variables, test_number and browsers:

test_number,login, password, user_type, browsers
001,alex,test@2015,tester,IE
002,luis,luis123,senior tester,IE
003,admin,admin,admin,IE
004,daniel,daniel123,guest,IE
005, jaque,jaque@2015,leader,IE
006,luis,luis123,senior tester,FIREFOX
007,admin,admin,admin,FIREFOX
008,daniel,daniel123,guest,FIREFOX
009,alex,test@2015,tester,FIREFOX
010,jaque,jaque@2015,leader,FIREFOX
011,luis,luis123,senior tester,CHROME
012,admin,admin,admin,CHROME
013,daniel,daniel123,guest,CHROME
014,alex,test@2015,tester,CHROME
015,jaque,jaque@2015,leader,CHROME

Need import new classe, as follows:

from classes.browsers_test import *

Let's go now instantiate the class, as follows:

def setUp(self):

    self.test_browser = browsers()

In our test in login_test.py, need change a little, on function change to receive new variables, as follows:

    def test_login_password_ok(self,test_number,tl_login,tl_password,user_type,browser_type):

For last, now set browser function and pass the browser variable and return instantiates the same.

self.driver = self.test_browser.setBrowser(browser_type)

Too let's go create a list with results of tests.
Test Ok:

list_result.append([test_number,"Passed"])

Test Fail:

list_result.append([test_number,"Failed"])

Now new code with changes:

"""
Author: Reinaldo Mateus R J, Test version: 0.1
Fist Step - Imports modules, in Python code in one module gains access to the code in another module by
    the process of importing.
Second Step - create function get_data in csv file.
Third Step - create class and function specific for test.
"""

import csv, unittest, time, os
from ddt import ddt, data, unpack
from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.support.ui import WebDriverWait
from variables_test import *
from classes.browsers_test import *
global list_result
list_result = []

def get_data(file_name):
    # create an empty list to store rows
    rows = []
    # open the CSV file
    print file_name
    data_file = open(file_name, "rb")
    # create a CSV Reader from CSV file
    reader = csv.reader(data_file)
    # skip the headers
    next(reader, None)
    # add rows from reader to list
    for row in reader:
         rows.append(row)
    return rows

# DDT consists of a class decorator @ddt (for your TestCase subclass)
@ddt
class LoginTestClass(unittest.TestCase,object):

    def setUp(self):

        self.test_browser = browsers()
        # url base of website
        self.base_url = BASE_URL

    # Read the users in rows, and Passing variables tl_login,tl_password,user_type to function test_run.
    @data(*get_data(PATH_TEST_OK))
    # will automatically unpack tuples and lists into multiple arguments, and dictionaries into multiple
    # keyword arguments.
    @unpack
    def test_login_password_ok(self,test_number,tl_login,tl_password,user_type,browser_type):

        self.driver = self.test_browser.setBrowser(browser_type)
        wait = WebDriverWait(self.driver, 90)
        # Try three times if fail.
        for i in range(3):
            try:
                self.driver.get(self.base_url+ LOGIN_PAGE)
                elem = wait.until(lambda driver: driver.find_element_by_name("tl_login"))
                # Send user name in tl_login field
                elem.send_keys(tl_login)
                # Next we are sending keys, this is similar to entering keys using your keyboard.
                elem.send_keys(Keys.RETURN)
                elem = self.driver.find_element_by_name("tl_password")
                # Send password in tl_password field
                elem.send_keys(tl_password)
                # This is similar to entering keys using your keyboard.
                elem.send_keys(Keys.RETURN)
                time.sleep(DELAY_FAST)
                # timeout five seconds
                time.sleep(DELAY_FAST)
                self.driver.get(self.base_url+ MAIN_MENU)
                print "\nTest: ", test_number, tl_login, tl_password, user_type, browser_type
                time.sleep(DELAY_FAST)
                confirm = wait.until(lambda driver: driver.find_element_by_xpath\
                    ("/html/body/div[2]/span[contains(text(),'"+user_type+"')]" ))
                print  confirm.text
                elem_test = str(confirm.text)
                time.sleep(DELAY_FAST)
                # split text in two words in the string.
                elem_test = elem_test.split(" ", 1)
                time.sleep(DELAY_FAST)
                print "Tag value: " + str(elem_test)
                # compare second word with user_type
                if elem_test[1] == "["+user_type+"]":
                    if (self.driver.find_element_by_xpath(XPATH_TOP_TEXT_MAIN_PAGE)):
                        # Test - compare text expected with XPATH_TOP_TEXT_MAIN_PAGE in browser.
                        self.assertTrue((self.driver.find_element_by_xpath(XPATH_TOP_TEXT_MAIN_PAGE).text\
                                         == TOP_TEXT_MAIN_PAGE))
                        print "Test User " +user_type+ " Passed with success! Test Number: ", test_number
                        self.driver.get(self.base_url+ INDEX_MENU)
                        time.sleep(DELAY_HIGH)
                        screenshot = self.driver.get_screenshot_as_file(SCREEN_SAVE + tl_login + "_" + tl_password + "" + user_type +'.png')
                        print "Screenshot saved to: %s" % screenshot
                        list_result.append([test_number,"Passed"])
                        return True
                    else:
                        # Inform if not found the field expected.
                        time.sleep(DELAY_HIGH)
                        # Test - compare text expected with XPATH_TOP_TEXT_MAIN_PAGE in browser.
                        self.assertTrue((self.driver.find_element_by_xpath(XPATH_TOP_TEXT_MAIN_PAGE).text\
                                         == TOP_TEXT_MAIN_PAGE))
                        print "Element Xpath not found: ", tl_login, tl_password, user_type , browser_type

            except:
                pass
                print "Failed! Test Number: ",test_number, tl_login, tl_password, user_type, browser_type
                print "Failed attempts: ", i
                if (i >= 2):
                    list_result.append([test_number,"Failed"])
                time.sleep(DELAY_HIGH)
            # Logout this web application
        self.driver.get(self.base_url+ LOGOUT_PAGE)


    def tearDown(self):

        # function which returns a new sorted list
        list_result.sort()
        print "\nTest Number / Result   "
        for i in xrange(0,len(list_result)):
                print "----------------------------------"
                print list_result[i][0],list_result[i][1]
        self.driver.close()
        # will end the whole session.
        #self.driver.quit()

To execution new test, need selenium-server-standalone-2.47.1.jar
Page to download: http://www.seleniumhq.org/download/
I created .bat file to run selenium-server in windows, follow the tip:
Create new file .txt in desktop and add commands below, rename the file to server selenium.bat

cd\
cd C:\selenium_server\
java -jar selenium-server-standalone-2.47.1.jar -port 4441
pause

Tests Result:
Test Number / Result  
----------------------------------
001 Passed
----------------------------------
002 Passed
----------------------------------
003 Passed
----------------------------------
004 Passed
----------------------------------
005 Passed
----------------------------------
006 Passed
----------------------------------
007 Passed
----------------------------------
008 Passed
----------------------------------
009 Passed
----------------------------------
010 Passed
----------------------------------
011 Passed
----------------------------------
012 Passed
----------------------------------
013 Passed
----------------------------------
014 Passed
----------------------------------
015 Passed


The code is simple is efficient, could use the jenkins for this, but it's good to get out a bit outside the box to good results.

Now let's go the good practices, Refactoring the code.

create new class in classes directory with name:

common_functions.py

Put here all common functions:

 __author__ = 'Reinaldo M. R. Junior'
import csv, unittest, time, os

class functions(object):

    def get_data(self,file_name):
        # create an empty list to store rows
        rows = []
        # open the CSV file
        print file_name
        data_file = open(file_name, "rb")
        # create a CSV Reader from CSV file
        reader = csv.reader(data_file)
        # skip the headers
        next(reader, None)
        # add rows from reader to list
        for row in reader:
             rows.append(row)
        return rows

Create class login in classes:

login.py

Perform Login is used by many classes, and the need to separate, to be used by other classes.

"""
Author: Reinaldo Mateus R J, Test version: 0.1
Fist Step - Imports modules, in Python code in one module gains access to the code in another module by
    the process of importing.
Second Step - create function get_data in csv file.
Third Step - create class and function specific for test.
"""

import time
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.support.ui import WebDriverWait
from variables_test import *


class loginTest(object):

    def test_login_password_ok(self,tl_login,tl_password,user_type,driver):

        #self.test_browser = browsers()
        # url base of website
        self.base_url = BASE_URL
        self.driver = driver
        wait = WebDriverWait(self.driver, 90)

        try:
            self.driver.get(self.base_url+ LOGIN_PAGE)
            elem = wait.until(lambda driver: driver.find_element_by_name("tl_login"))
            # Send user name in tl_login field
            elem.send_keys(tl_login)
            # Next we are sending keys, this is similar to entering keys using your keyboard.
            elem.send_keys(Keys.RETURN)
            elem = self.driver.find_element_by_name("tl_password")
            # Send password in tl_password field
            elem.send_keys(tl_password)
            # This is similar to entering keys using your keyboard.
            elem.send_keys(Keys.RETURN)
            time.sleep(DELAY_FAST)
            # timeout five seconds
            time.sleep(DELAY_FAST)
            self.driver.get(self.base_url+ MAIN_MENU)
            print "\nTest: ", tl_login, tl_password, user_type
            time.sleep(DELAY_FAST)
            confirm = wait.until(lambda driver: driver.find_element_by_xpath\
                ("/html/body/div[2]/span[contains(text(),'"+user_type+"')]" ))
            print  confirm.text
            elem_test = str(confirm.text)
            time.sleep(DELAY_FAST)
            # split text in two words in the string.
            elem_test = elem_test.split(" ", 1)
            time.sleep(DELAY_FAST)
            print "Tag value: " + str(elem_test)
            # compare second word with user_type
            if elem_test[1] == "["+user_type+"]":
                    time.sleep(DELAY_FAST)
                    return elem_test[1]
            else:
                return False

        except (RuntimeError, TypeError, NameError):
            print "Failed! Test Number: ",tl_login, tl_password, user_type
            time.sleep(DELAY_HIGH)
            pass


In variables_test.py create:

list_result = []

Now login_test.py, as follows:

"""
Author: Reinaldo Mateus R J, Test version: 0.1
Fist Step - Imports modules, in Python code in one module gains access to the code in another module by
    the process of importing.
Second Step - create function get_data in csv file.
Third Step - create class and function specific for test.
"""
import unittest, time
from ddt import ddt, data, unpack
from selenium import webdriver
from selenium.webdriver.support.ui import WebDriverWait
from variables_test import *
from classes.browsers_test import *
from classes.common_functions import *
from classes.login import *
commom = functions()
login = loginTest()

# DDT consists of a class decorator @ddt (for your TestCase subclass)
@ddt
class LoginTestClass(unittest.TestCase,object):

    def setUp(self):

        self.test_browser = browsers()
        # url base of website
        self.base_url = BASE_URL
        self.driver = ''

    # Read the users in rows, and Passing variables tl_login,tl_password,user_type to function test_run.
    @data(*commom.get_data(PATH_TEST_OK))
    # will automatically unpack tuples and lists into multiple arguments, and dictionaries into multiple
    # keyword arguments.
    @unpack
    def test_login_password_ok(self,test_number,tl_login,tl_password,user_type,browser_type):

        self.driver = self.test_browser.setBrowser(browser_type)
        wait = WebDriverWait(self.driver, 90)
        # Try three times if fail.
        for i in range(3):
            try:
                elem_test = login.test_login_password_ok(tl_login,tl_password,user_type,self.driver)
                if elem_test == "["+user_type+"]":
                    if (self.driver.find_element_by_xpath(XPATH_TOP_TEXT_MAIN_PAGE)):
                        # Test - compare text expected with XPATH_TOP_TEXT_MAIN_PAGE in browser.
                        self.assertTrue((self.driver.find_element_by_xpath(XPATH_TOP_TEXT_MAIN_PAGE).text\
                                         == TOP_TEXT_MAIN_PAGE))
                        print "Test User " +user_type+ " Passed with success! Test Number: ", test_number
                        self.driver.get(self.base_url+ INDEX_MENU)
                        time.sleep(DELAY_HIGH)
                        screenshot = self.driver.get_screenshot_as_file(SCREEN_SAVE + tl_login + "_" + tl_password + "" + user_type +'.png')
                        print "Screenshot saved to: %s" % screenshot
                        list_result.append([test_number,"Passed"])
                        return True
                    else:
                        # Inform if not found the field expected.
                        time.sleep(DELAY_HIGH)
                        # Test - compare text expected with XPATH_TOP_TEXT_MAIN_PAGE in browser.
                        self.assertTrue((self.driver.find_element_by_xpath(XPATH_TOP_TEXT_MAIN_PAGE).text\
                                         == TOP_TEXT_MAIN_PAGE))
                        print "Element Xpath not found: ", tl_login, tl_password, user_type , browser_type

            except:
                pass
                print "Failed! Test Number: ",test_number, tl_login, tl_password, user_type, browser_type
                print "Failed attempts: ", i
                if (i >= 2):
                    list_result.append([test_number,"Failed"])
                time.sleep(DELAY_HIGH)
            # Logout this web application
        self.driver.get(self.base_url+ LOGOUT_PAGE)


    def tearDown(self):

        # function which returns a new sorted list
        list_result.sort()
        print "\nTest Number / Result   "
        for i in xrange(0,len(list_result)):
                print "----------------------------------"
                print list_result[i][0],list_result[i][1]
        self.driver.close()
        # will end the whole session.
        self.driver.quit()


Now is the half the size it was, and still going be used for functions other classes, refactoring the code is good practice.


Another good practice is commit this code in version control system, below our code committed in bitbucket:

git clone https://reiload@bitbucket.org/reiload/selenium-webdriver-ddt-and-python-with-real-project.git 


In the next Topic about Design Patterns in Selenium.

Read:
http://www.seleniumhq.org/docs/04_webdriver_advanced.jsp
http://www.seleniumhq.org/docs/03_webdriver.jsp#webdriver-and-the-selenium-server

I will show how to create test automation with ddt and python, with code clean and adaptable in Real Project: Part 2

We will expand our project to other operating systems, Linux and windows for example, our project will be multi-platform, now let's go get the way of our directory and add to our links.

import platform,sys

# GET FULL PATH DIRETORY
f = sys.path[0]
# GET DIRECTORY OF PROJECT
project = f.split("sanity_test", 1)
PROJECT_PATH = project[0]

LOGIN_PAGE = "/login.php?note=expired"
BASE_URL = "http://localhost//testlink-1.9.13"
MAIN_MENU = "/lib/general/navBar.php?tproject_id=0&tplan_id=0&updateMainPage=1"
INDEX_MENU = "//index.php?caller=login"
LOGOUT_PAGE = "/logout.php"
LOGIN_PASS_WIN = PROJECT_PATH + "data\\login_password_ok.csv"
LOGIN_PASS_LIN = PROJECT_PATH + "data/login_password_ok.csv"
LOGIN_FAIL_WIN = PROJECT_PATH + "data\\loginOrPass_failed.csv"
LOGIN_FAIL_LIN = PROJECT_PATH + "data/loginOrPass_failed.csv"
TOP_TEXT_MAIN_PAGE = "TestLink 1.9.13 (Stormbringer)"
XPATH_TOP_TEXT_MAIN_PAGE = "/html/body/div[2]/span[3]"
DELAY_FAST = 3
DELAY_HIGH = 7
SCREEN_SAVE= PROJECT_PATH + "sanity_test\\screenshots\\"

# GET PATH OF ACCORDING WITH OPERATING SYSTEM
platform = platform.uname()[0]
if platform == "Windows":
    PATH_TEST_OK = LOGIN_PASS_WIN
    PATH_TEST_FAIL = LOGIN_FAIL_WIN
elif platform == "Linux":
    PATH_TEST_OK = LOGIN_PASS_LIN
    PATH_TEST_FAIL = LOGIN_FAIL_LIN



Now our main test modified, with screen slot now, need create subdirectoy screenshots in sanity_test.


"""
Author: Reinaldo Mateus R J, Test version: 0.1
Fist Step - Imports modules, in Python code in one module gains access to the code in another module by
    the process of importing.
Second Step - create function get_data in csv file.
Third Step - create class and function specific for test.
"""

import csv, unittest, time, os
from ddt import ddt, data, unpack
from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.support.ui import WebDriverWait
from variables_test import *

def get_data(file_name):
    # create an empty list to store rows
    rows = []
    # open the CSV file
    print file_name
    data_file = open(file_name, "rb")
    # create a CSV Reader from CSV file
    reader = csv.reader(data_file)
    # skip the headers
    next(reader, None)
    # add rows from reader to list
    for row in reader:
         rows.append(row)
    return rows

# DDT consists of a class decorator @ddt (for your TestCase subclass)
@ddt
class LoginTestClass(unittest.TestCase):

    def setUp(self):
        # create a new Firefox session
        self.driver = webdriver.Firefox()
        self.driver.implicitly_wait(10)
        self.driver.maximize_window()
        # url base of website
        self.base_url = BASE_URL

    # Read the users in rows, and Passing variables tl_login,tl_password,user_type to function test_run.
    @data(*get_data(PATH_TEST_OK))
    # will automatically unpack tuples and lists into multiple arguments, and dictionaries into multiple
    # keyword arguments.
    @unpack
    def test_login_password_ok(self,tl_login,tl_password,user_type):

        wait = WebDriverWait(self.driver, 90)
        # Try three times if fail.
        for i in range(3):
            try:
                self.driver.get(self.base_url+ LOGIN_PAGE)
                elem = wait.until(lambda driver: driver.find_element_by_name("tl_login"))
                # Send user name in tl_login field
                elem.send_keys(tl_login)
                # Next we are sending keys, this is similar to entering keys using your keyboard.
                elem.send_keys(Keys.RETURN)
                elem = self.driver.find_element_by_name("tl_password")
                # Send password in tl_password field
                elem.send_keys(tl_password)
                # This is similar to entering keys using your keyboard.
                elem.send_keys(Keys.RETURN)
                time.sleep(DELAY_FAST)
                # timeout five seconds
                time.sleep(DELAY_FAST)
                self.driver.get(self.base_url+ MAIN_MENU)
                print "Test: ", tl_login, tl_password, user_type
                time.sleep(DELAY_FAST)
                confirm = wait.until(lambda driver: driver.find_element_by_xpath\
                    ("/html/body/div[2]/span[contains(text(),'"+user_type+"')]" ))
                print  confirm.text
                elem_test = str(confirm.text)
                time.sleep(DELAY_FAST)
                # split text in two words in the string.
                elem_test = elem_test.split(" ", 1)
                time.sleep(DELAY_FAST)
                print "Tag value: " + str(elem_test)
                # compare second word with user_type
                if elem_test[1] == "["+user_type+"]":
                    if (self.driver.find_element_by_xpath(XPATH_TOP_TEXT_MAIN_PAGE)):
                        # Test - compare text expected with XPATH_TOP_TEXT_MAIN_PAGE in browser.
                        self.assertTrue((self.driver.find_element_by_xpath(XPATH_TOP_TEXT_MAIN_PAGE).text\
                                         == TOP_TEXT_MAIN_PAGE))
                        print "Test User " +user_type+ " Passed with success!", tl_login, tl_password, user_type
                        self.driver.get(self.base_url+ INDEX_MENU)
                        time.sleep(DELAY_HIGH)
                        screenshot = self.driver.get_screenshot_as_file(SCREEN_SAVE + tl_login + "_" + tl_password + "" + user_type +'.png')
                        print "Screenshot saved to: %s" % screenshot
                        return True
                    else:
                        # Inform if not found the field expected.
                        time.sleep(DELAY_HIGH)
                        # Test - compare text expected with XPATH_TOP_TEXT_MAIN_PAGE in browser.
                        self.assertTrue((self.driver.find_element_by_xpath(XPATH_TOP_TEXT_MAIN_PAGE).text\
                                         == TOP_TEXT_MAIN_PAGE))
                        print "Element Xpath not found: ", tl_login, tl_password, user_type

            except:
                pass
                print "Failed!", tl_login, tl_password, user_type
                print "Failed attempts: ", i
                time.sleep(DELAY_HIGH)
            # Logout this web application
            self.driver.get(self.base_url+ LOGOUT_PAGE)


    def tearDown(self):
            # will end the whole session.
            self.driver.quit()


Now our simple code without need another classes, adaptable to multiple platforms!

Let's go now complicate our project, our client asked that the tests they are run on multiple browsers, Firefox, Chrome, Internet Explorer by default.

http://www.vidadetestador.com/2015/09/i-will-show-how-to-create-test_22.html
 

I will show how to create test automation with ddt and python, with code clean and adaptable in Real Project:

By using the data-driven testing approach, we can use a single test to verify different
sets of test cases or test data by driving the test with input and expected values from
an external data source instead of using the hardcoded values every time a test is run.

The ddt library provides the ability to parameterize the test cases written using the
unittest library in Python. We can provide a set of data using ddt to a test case for
data-driven tests.
The ddt library provides a set of class and method decorators that we can use to
create data-driven tests.

 Unmesh Gundecha - A practical guide on automated web testing with Selenium using Python.

 I will show how to create test automation with ddt and python, with code clean and adaptable in Real Project:

 1. Step - Install ddt pack:
We can download and install ddt using the following command line in shell or cmd windows:
pip install ddt
  
Home Page: https://github.com/txels/ddt

 2. Step - Reading values from CSV:
We will use the previous test case and move the data that we supplied to
the @data decorator into a separate CSV file called login_password_ok.csv instead of
keeping it in the script. This data will be stored in a tabular format as shown
in the following screenshot:

3. Install the TestLink in localhost:

Follow the video below:
https://www.youtube.com/watch?v=BaOxsJOpk30

4. Step - Create the users in TestLink :

Follow the video below:

Link this video on youtube.

5. Step - Creating the code:

5.1- Now let's go create two files in python:

- login_test.py

- variables_url_test.py - Will contain data that can change at any time.

5.1.1 Create file variables_url_test.py and insert data below:

LOGIN_PAGE = "/login.php?note=expired"
BASE_URL = "http://localhost//testlink-1.9.13"
MAIN_MENU = "/lib/general/navBar.php?tproject_id=0&tplan_id=0&updateMainPage=1"
LOGOUT_PAGE = "/logout.php"
LOGIN_PASS= "C:\\xxx\\xxx\\xxx\\xxx\\data\\login_password_ok.csv"
TOP_TEXT_MAIN_PAGE = "TestLink 1.9.13 (Stormbringer)"
XPATH_TOP_TEXT_MAIN_PAGE = "/html/body/div[2]/span[3]"
DELAY_FAST = 3

5.1.1 Create file login_test.py and insert data below:

"""
Author: Reinaldo Mateus R J, Test version: 0.1
Fist Step - Imports modules, in Python code in one module gains access to the code in another module by
    the process of importing.
Second Step - create function get_data in csv file.
Third Step - create class and function specific for test.
"""

import csv, unittest, time
from ddt import ddt, data, unpack
from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.support.ui import WebDriverWait
from variables_test import *


def get_data(file_name):
    # create an empty list to store rows
    rows = []
    # open the CSV file
    print file_name
    data_file = open(file_name, "rb")
    # create a CSV Reader from CSV file
    reader = csv.reader(data_file)
    # skip the headers
    next(reader, None)
    # add rows from reader to list
    for row in reader:
         rows.append(row)
    return rows

# DDT consists of a class decorator @ddt (for your TestCase subclass)
@ddt
class LoginTestClass(unittest.TestCase):

    def setUp(self):
        # create a new Firefox session
        self.driver = webdriver.Firefox()
        self.driver.implicitly_wait(10)
        self.driver.maximize_window()
        # url base of website
        self.base_url = BASE_URL

    # Read the users in rows, and Passing variables tl_login,tl_password,user_type to function test_run.
    @data(*get_data(LOGIN_PASS))
    # will automatically unpack tuples and lists into multiple arguments, and dictionaries into multiple
    # keyword arguments.
    @unpack
    def test_run(self,tl_login,tl_password,user_type):

        wait = WebDriverWait(self.driver, 90)
        # Try three times if fail.
        for i in range(3):
            try:
                self.driver.get(self.base_url+ LOGIN_PAGE)
                elem = wait.until(lambda driver: driver.find_element_by_name("tl_login"))
                # Send user name in tl_login field
                elem.send_keys(tl_login)
                # Next we are sending keys, this is similar to entering keys using your keyboard.
                elem.send_keys(Keys.RETURN)
                elem = self.driver.find_element_by_name("tl_password")
                # Send password in tl_password field
                elem.send_keys(tl_password)
                # This is similar to entering keys using your keyboard.
                elem.send_keys(Keys.RETURN)
                time.sleep(DELAY_FAST)
                # timeout five seconds
                time.sleep(DELAY_FAST)
                self.driver.get(self.base_url+ MAIN_MENU)
                print "Test: ", tl_login, tl_password, user_type
                time.sleep(DELAY_FAST)
                confirm = wait.until(lambda driver: driver.find_element_by_xpath\
                    ("/html/body/div[2]/span[contains(text(),'"+user_type+"')]" ))
                print  confirm.text
                elem_test = str(confirm.text)
                time.sleep(DELAY_FAST)
                # split text in two words in the string.
                elem_test = elem_test.split(" ", 1)
                time.sleep(DELAY_FAST)
                print "Tag value: " + str(elem_test)
                # compare second word with user_type
                if elem_test[1] == "["+user_type+"]":
                    if (self.driver.find_element_by_xpath(XPATH_TOP_TEXT_MAIN_PAGE)):
                        # Test - compare text expected with XPATH_TOP_TEXT_MAIN_PAGE in browser.
                        self.assertTrue((self.driver.find_element_by_xpath(XPATH_TOP_TEXT_MAIN_PAGE).text\
                                         == TOP_TEXT_MAIN_PAGE))
                        print "Test User " +user_type+ " Passed with success!", tl_login, tl_password, user_type
                        break
                    else:
                        # Inform if not found the field expected.
                        time.sleep(10)
                        # Test - compare text expected with XPATH_TOP_TEXT_MAIN_PAGE in browser.
                        self.assertTrue((self.driver.find_element_by_xpath(XPATH_TOP_TEXT_MAIN_PAGE).text\
                                         == TOP_TEXT_MAIN_PAGE))
                        print "Element Xpath not found: ", tl_login, tl_password, user_type

            except:
                pass
                print "Failed!", tl_login, tl_password, user_type
                print "Failed attempts: ", i
                time.sleep(7)
            # Logout this web application
            self.driver.get(self.base_url+ LOGOUT_PAGE)

    def tearDown(self):
            # close the browser window
            self.driver.quit()

From basic mode we finished our tests, but not the testing activity is carried out to find the defects in the code & improve the quality of software application. Testing of application can be carried out in two different ways, Positive testing and Negative testing. Keep in mind that both positive and negative testing is equally important for effective testing which help to improve quality of software.


Negative Test scenarios:
Login and Password wrong, should not accept.
Login ok and Password wrong, should not accept.
Login wrong and Password ok, should not accept.
Password textbox should not exceeds more than 20 characters
Password textbox should not accept special characters.


Now we will expand our project to other operating systems in part two:
http://www.vidadetestador.com/2015/09/i-will-show-how-to-create-test_21.html