how QA works

The most important foundation level in python is understanding topics like Statements, keywords, Identifiers, Operators, datatypes, methods, class, objects, etc..

Let's see the concepts below on the Operators to begin with,

2 variables A and B, with A =5 and B=10

Arithmetic -> Addition +, Subtraction, -, Multiplication *, Division /, Modulo%, Floor Division //, Floor Multiplication **

A+B ->5+10=15

A-B=5-10 = -5

Conditional operators - lesser than<, Greater than>, less than or equal to<=, Greater than or equal to >=, Not equal to !=, Equal to ==

Boolean data types - TRUE, FALSE

Logical Operators - AND OR NOT

Membership Operators - IN, NOT

Identity Operators - IS, IS NOT

Appium (appium.io) is an open-source tool, used to automate mobile applications, IOS, Android and support windows and platforms like android, iOS, desktop, windows as well. It can be used to automate native, web and hybrid mobile applications. native- an application which is native to mobile OS like iOS or Android web - can run in mobile web browser hybrid- are native applications but still can be opened in a specific native container or browser. Appium uses selenium web driver library, and the client scripts can be written in multiple programming languages Java, python, C# ruby, PHP, JavaScript and robot framework. written in C# created in 2011 by Dan Cuellar under the name iOSAuto, 2012 made open source under Apache license. 2013- sauce labs agreed to support Appium development. Design of Appium: Appium uses selenium web driver script -> and using the web driver wire protocol (Json wire protocol) the client scripts are converted into http rest-based requests-> sends to Appium server-> Appium server runs the request-> and runs automation using the native automation framework on the mobile application in the mobile device. more info is int eh Appium documentation here https://appium.io/docs/en/about-appium/intro/ Install Apium in Windows, option we are going tose eis from node.js Check in command line node --v to check for the version of the node js  

https://www.browserstack.com/guide/appium-with-python-for-app-testing

//Polymorphism
//Compile time polymorphism
//object overloading
//different in data types and diff number of arguments
public class Calculator
{
public static void main(String[]args)

{
Calculator calc =new Calculator();
calc.add(10, 20);
calc.add(10, 20, 30);
calc.add(10, 20, 30.5f);
}

public void add(int a1, int a2)
{
System.out.println(a1+a2);

}
public void add(int a1, int a2, int a3)
{
System.out.println(a1+a2+a3);
}	
	
public void add(int a1, int a2, float a3)
{
System.out.println(a1+a2+a3);
}
}

// object overriding
//run time polymorphism

public class Scicalc extends Calculator
{
public static void main (String[]args)
{
Scicalc scicalc = new Scicalc();
scicalc.add(100, 100);
}
//intentional addition of the below method to override the parents method add
public void add(int a1, int a2)
{

if (a1>100 && a2 >100)
{
System.out.println(a1+a2);
}
else
{
System.out.println("Please enter numbers greater than 100");

}
}
}

//if class made as final, it cannot be inherited, remove the final in the next line to be inherited by child class.

public final class Parent3
{
//final keyword is to make sure the //variable is not updated in the child class	
//child class uses only the parent class //value and is not overridden
final int pocket_money =5;
public static void main(String[]args)
{
Parent3 parent3 =new Parent3();
parent3.watchTV();
}

public final void watchTV()
{
System.out.println("LG");
}
}

//method overriding
//dynamic binding
//run time polymophism - on an inheritance //code 
public class Child3 extends Parent3
{
public static void main (String[]args)
{
//regular mode of creating an obj in parent class
//Parent3 parent3 = new Parent3();
//Parent object reference for a child object
// parent obj ref can only call method of a //child class which is also in the parent //class
Parent3 parent3 = new Child3();
parent3.watchTV();
//parent3.coding();
//Child3 child3 = new Child3();
//child3.watchTV();
//new Child3().watchTV();
System.out.println(parent3.pocket_money);
//to check the value cannot be assigned to alreay declared final
//parent3.pocket_money=10;
}
//public void watchTV()
//{
//System.out.println("Smart TV");
//}

public void coding()
{
	System.out.println("coding");
}
}

First let's see the collections advantages over array

1. Continuous memory
2. Unused memory will be wasted
3. cannot say the array size upfront

Collection is basically called a collection of objects Interfaces - all are contracts

1. Set - ex: playing cards - no order is maintained- no duplicate elements are present
2. List - ex: Grocery list - insertion order- can have duplicates!
3. Map

basics to see, how JavaScript works

Open Browser-> Console-> see basics of JavaScript

Comments in java script is given by //

//This is a comment

Basic data types

All the below are considered as numbers

integers-> 10

floating point-decimal ->12.0

negative numbers-13.5

String -> Ex:1 "hello World" Ex:2 "12"

Boolean -> true , false

undefined and null are basic data types in java script

clear () - used to clear console

Apache JMeter is an Apache project used to in load test, to evaluate the performance of the applications. Let's get started in few simple steps in creating a simple test to understand the basic features of JMeter.

Accessing JMeter -the package can be downloaded from the Apache JMeter - Download Apache JMeter website and extracted, saved in the preferred location from where it could be used. The necessary pre-requisite is provided on the website.

Open the tool in windows OS by navigating to the path and double clicking the batch file, once the tool is opened

Navigate to file->new->Test Plan add necessary info and save the file.

New Test Plan creation in Apache JMeter

Once the Test Plan is created, Right click on the test plan and create a thread Group defining the total number of users, ramp-up time, etc.. to be used in the test.

Adding the users- ramping up and ramping down, here the users are10 and minutes to ramp-up (steadily increase the user count/simulation to do the similar actions) in the 20 seconds.
Adding Samplers

Adding listeners to see the results, here we are seeing 2 listeners View results tree and View Results in table, once the test plan is run the below information can be seen.  

View Results Tree

 

View Results in Table

 

Notes:

1. Create a test plan
   1. View results
      1. Results tree
      2. Results in table
   2. Assertion
   3. Timer
   4. Listener
   5. Thread Group
      1. Ramp up
      2. Ramp down
   6. Heap dump
   7. Enable Debug
   8. HTML Report Viewer
      1. Log Level
         1. Trace
   9. Start->Remote->Stop+All
   10. Test/Sampler-> FTP,HTTP, JDBC, API

Robot framework.org - python based framework - keyword driven approach!
Ex:
open browser url chrome
input text id text info
Close Browser

install on windows OS

1.As a pre-requisite python must be installed in the system you are going to create the automation scripts, once its installed
need to check if pip is available

2. pip install robotframework

3. pip install --upgrade robotframework

4. pip install robotframework==5.0.1

to check if the robot framework is correctly installed, please follow the below commands!
pip freeze

pip list

pip show robotframework

pip check robotframework

If you want to uninstall Robot framework

To check on the version of the Robot framework

robot --version

Set environment variables in the PATH, so python is accessible from across locations in the system from where the code/file is being saved.

Selenium can be considered either as API or a framework, a tool to automate web applications. It is open source and can be programmed in multiple high-level languages.

Ex: Python, Java, C#, etc...

Here, we are going to see the usage of the tool in Java. A foundation level of understanding of the core concepts and object-oriented programming is necessary.

To validate the UI scenarios using Java and Selenium, one can use the jQuery website to practice with the latest UI level usage across the website.

Approach used in Automation framework,

For each page we have a separate class/object ?

Lets See on the General understanding of the few of the topics

object - instance of class

classes - collections of states and behaviours

methods (functions) - logic used for the computation

Return statements - print?

arguments - variables used in methods for the computations

-- Each page has a class. separate file

-- test data can be picked form the excel sheet's specified tab.

-- utility classes - has the details of the excel sheet, tab etc..