How to Configure & Use JMeter Plugins

The Problem

One challenge while working on JMeter is managing plug-in. It is a tedious task to download appropriate *.jar file, store jar file at relevant folder. If new version of plug-in comes, as a JMeter user, I need to repeat all the steps. In addition, I have to visit JMeter plugin website & check if any new version is released or not.

A Solution

The idea of JMeter Plugins Manager is simple, Install Plugins Manager once and it will do it all for you – like installing, upgrading, uninstalling of JMeter plugins.

       

• In order to install JMeter Plugins Manager, we need to Download the Plugins Manager JAR file and store it into JMeter's lib/ext directory.  JMeter Plugins Manager can be downloaded from link jmeter-plugins-manager.
• Restart JMeter and go to “Options” menu to access Plugins Manager

• In case any of your installed plugins have upgrades, The label on the menu item will say "has upgrades".

•      Clicking on menu item will bring up the plugins manager dialog:

•       The dialog has two tabs, "Installed Plugins" and "Available Plugins" button.
•       Removing ticks from plugins on "Installed Plugins"  & click on button “Apply Changes and Restart JMeter” tab will uninstall them. Same way, setting ticks on "Available Plugins" tab and click on “Apply Changed and Restart JMeter” will install the plugin.

Outro

Keep in mind that JMeter Plugin Manager is still in beta phase, so in coming time many more new feature might get added.

Happy Testing

Does QTP testing require in depth knowledge of VB script

You need to understand what you are trying to do with QTP. Generally, QTP testers work on three different levels -

1. User - Framework and automation test scripts are created by other people in this scenario. The user only executes the prewritten scripts and analyze the results. You will need little knowledge of vbscript in this case, just to be able to troubleshoot if something goes wrong. You should know following in VB Script - Focus on flow controls, creating methods, basic string operations, date operations, variables type, reading and writing to Excel, and commonly used VB script methods.

2. Script developer - In this case, you will need to prepare test scripts, adhering to the guidelines of the framework in your organization. You will need deeper understanding of VBScript and programming in general to play this role.

3. Framework designer/developer - This is a highly specialized role. You will need in depth knowledge of VBScript and at least another high level language, understanding of design patterns and good grasp of data structures and algorithms to play this role.

Think where you want to be in your career. In case you want to opt for #3, You should start learning VBScript.

You can visit W3Schools Online Web Tutorials and complete online tutorial on VB. 

Write Positive and Negative test cases for login page

This is one of frequent question asked by interviewer. In order to answer this question, you need to understand the difference between what a positive test case and a negative test case is.

•       A positive test case confirms some expected functionality. E.g.: A user with a valid username and the corresponding password can log in successfully.
•      A negative test case tests for unexpected or invalid conditions, and confirms that the code can hold up in these circumstances. 

·         Positive Test Case

               1.       Verify the Correct username, Correct password - Login Successfully.

·         Negative Test Cases

                            1.       Verify the Incorrect username, incorrect password- Can't Login

                            2.       Verify valid username and empty password. -Can't Login

                            3.       Verify empty username and valid password. - Can't Login

                            4.       Verify some password(can be a registered/unregistered)- Can't Login

                            5.       Verify case changed username /password.- Can't Login

                            6.       Verify registered user's login id and password -Can't Login

                            7.       Verify registered username and password.- Can't Login

                            8.       Verify to enter disable(Blocked) email address.- Can't Login

                    9.     Verify to unverified Email address. - Can't Login

How To Continue With Script Even If NoSuchElement Exception is Thrown

The Problem

If you selenium script fails to find element on page by provided locator, it throws NoSuchElement exception. NoSuchElement is an exception which is basically like crashing the program into a wall. Whenever this error comes, script execution gets stopped.

A Solution

As an automation developer, I can ensure uninterrupted script execution in two ways

1.       Using try/catch block

Let’s try to implement it in an example –

NoSuchElement error without Try/Catch Handling

     public static void main(String[] args) {

                                WebDriver driver = new FirefoxDriver();

                                driver.get("http://thebuddhatree.blogspot.in/");

                                driver.findElement(By.id("name")).click();

                }

Note – This program will generate error and script execution gets stopped if element with provided locator is not on page.

NoSuchElement error with Try/Catch Block

import org.openqa.selenium.By;

import org.openqa.selenium.NoSuchElementException;

import org.openqa.selenium.WebDriver;

import org.openqa.selenium.firefox.FirefoxDriver;

public class NoSuchElementError {

                public static void main(String[] args) {

                                WebDriver driver = new FirefoxDriver();

                                driver.get("http://thebuddhatree.blogspot.in/");

                                try {

                                                driver.findElement(By.id("name")).click();

                                } catch (NoSuchElementException e) {

                                                System.out.println("In Catch Block");

                                }

                                System.out.println("Outside Block, resume executing other code");

                }

}

Note – This program will generate error but script execution will continue for remaining code.

2.       Using FindElements() method

Build into Selenium is an ability to search multiple elements using single action

findElements() method behavior can be summarized as follows  -

·         On Zero Match : return an empty list

·         On One Match : returns list of one WebElement only

·         On One+ Match : returns list with all matching elements

NoSuchElement error using FindElements()

public static void main(String[] args) {

                                WebDriver driver = new FirefoxDriver();

                                driver.get("http://google.in/");

                               

                                List <WebElement> elements  =driver.findElements(By.id("name"));

                                if (elements.size() == 0){

                                                System.out.println("Element Not Found");

                                }

                }

Expected Behavior

• ·         Open the Browser
• ·         Load the page
• ·         Search for an element
• ·         Fails to find element
• ·         Script execution continued

Conclusion

Happy Learning

Please ask questions on Testing Forum, in case of any issues or doubts or questions.

Fundamental Requirements For an Entry Level QA Engineer

There are different types of roles in Software industry - like problem-solving, problem-finding, problem-defining. As a general rule, programmers focus on solving problems, where testers or QA Engineer focus on finding and defining problems. In other words, QA Engineer focus tends to be more "did we build the right it". If you love finding & defining problems, welcome to world of QA Engineers.

That said, there are generalities I would consider for entry-level QA positions:

·         Ability to communicate and prioritize - QA people needs to create bug reports and convince others that the problems they reported need to be fixed. They are also needed to evaluate the severity of any problems they run into. You need to be good in verbal & written communication and explain defects in simple terms.

·         Fast learner - no matter what level or domain of software QA someone starts at, there's a large learning curve.

·         Any kind of programming skill is a bonus because it helps in automating tests. As of now,  most IT companies require all of their QA resources to write test automation code

·         Analytic mindset

·         Be Curios & Ability to research

·         Ability to multitask and adapt to a constantly changing environment

·         Build good rapport with Developer, it helps you understanding working of application

·         Ability to take decision, as a QA, you are need to advise the business on whether or not to release. Being a QA, I should know every part of system better than anyone else.

Having said that feel free to add skill which you feel should be added.