Skip to main content

Environment Variables

Environment Variables


Environment variables in QTP are similar to global variables which can be accessed through any part of the script.These variables can prove to be very useful when we want a variable to be shared across various reusable actions and functions.

Two Types of Environment variable:

1. Built in variables

2. User Defined variables
         ♦ Internal
         ♦ External

Built in variable:

Built-in: Variables that represent information about the test on which the test is run, such as Test path and Operating system. These variables are accessible from all tests, and are designated as read-only.

Syntax:
Variable = Environment("environment variable name")

Example:
'Some of the In built Environment Variables
 
Msgbox Environment("OS")
Msgbox Environment("OSVersion")
Msgbox Environment.value("ProductDir")
Msgbox Environment.value("ProductName")
 
'path where Test result for the current test is stored 
Msgbox Environment("ResultDir")

Internal User defined variable:
User defined Internal: are the variables that we define within the test.The variables are saved with the test and are accessible only within the test.

Example:
'User can create their own enviroment variables like "Url"
 
Environment.Value("Url")= "http:\\www.gmail.com" 
 
URL=Environment.Value("Url")
 
Systemutil.Run "iexplore.exe",URL

External User defined variable

User defined External: are the variables that we predefine in the active external environment variables file.These can be created using a list of variable-value pairs in an external file in .xml format.
Steps to follow:
1. Create External user defined variable

File --> settings --> Environment --> select variable type as user defined --> click add icon (+) --> enter variable name & Value --> click OK --> click export --> browse path and enter file name --> save with xml extension --> click OK.
2. Associate environment variable file(xml)

File --> settings -->Environment --> select variable type as user defined --> check “load variables and values from the external file” --> browse path of the xml file --> click apply --> Click OK.

XML file with variable name and value should be mentioned
Labels:

Comments

Post a Comment

Popular posts from this blog

JMeter Exceeded Maximum Number of Redirects Error Solution

While running performance test, JMeter allows maximum 5 redirects by default. However, if your system demands more than 5 redirects, it may result in JMeter exceeded maximum number of redirects error. In this post, we have listed down steps to overcome this error. Actual error in JMeter: Response code: “Non HTTP response code: java.io.IOException” Response message: “Non HTTP response message: Exceeded maximum number of redirects: 5” This error is noticed because  JMeter  allows maximum 5 redirects by default and your system may be using more than 5 redirects. You need to increase this count to more than 5 in jmeter.properties file. Follow below steps to achieve this. Navigate to /bin directory of your JMeter installation. Locate jmeter.properties file and open it in any editor. Search for “httpsampler.max_redirects” property in opened file. Uncomment the above property by removing # before it. Change to value to more than 5 Eg. 20. Save the file and restart JMet...
Post a Comment
Read more

Performance Testing in the Cloud with JMeter & AWS

JMeter is a wonderful tool  to stress test your website and  your application architecture , however if you are trying to simulate many users (>1000) one JMeter instance (=pc) will not be sufficient. You will have to set up a JMeter cluster with multiple machines. JMeter is capable or running  distributed tests , but it comes with limitations. Since most of us don’t have multiple servers laying around somewhere, we usually go to cloud service providers like  AWS , spin up a couple of  EC2 instances  and turn them off whenever we’re done. Here is the problem, JMeter uses  Java RMI (Remote Method Invocation)  to communicate to its slaves, but these connections require all machines to be on the same subnet and this is not feasible with EC2 instances. Below, I explain how to get around this problem using a 3 node configuration in AWS to execute tests. I assume that you have a written the test already and have the .jmx file r...
Post a Comment
Read more

Difference Between Redirect Automatically and Follow Redirects in JMeter

In this post, we will highlight important difference between Redirect Automatically and Follow Redirects options. These options are found in HTTP Request sampler of JMeter. Knowing the difference will help you decide your performance test strategy. When you check Redirect Automatically option, JMeter will not consider redirect as separate HTTP request. This in turn may result as lower response time in your overall performance test. Whereas Follow Redirect option will consider each redirection as separate requests. This may result in comparatively higher response time. This only has any effect if “Redirect Automatically” is not enabled. To see the difference between these two, record a sample script and run it by checking Redirect Automatically and Follow Redirects option. The second option will generate more requests in your result listener. As you can see from the above post, knowing the difference between Redirect Automatically and Follow Redirects option makes difference i...
Post a Comment
Read more