In my script i have multiple checkboxes,upon selecting which it populate values(like in first group -- Phone,tablets and in other group it --mac,android).I know that jmeter does not support javascript.If i want to automate it in my script that it selects random checkbox during execution.How can i do that?
There are two ways webpages handle dynamic data population.
Pre-caching
All the needed data is fetched from the server during the initial page load, and as the user makes selections, checkboxes or drop-down boxes or tags etc, the data is filtered on the client end and presented to the user. All of this happens through JavaScript execution on the front end and there is no server interaction. If you used JMeter proxy to record the page load, the pre-load should already be included in your test.
In the traditional JMeter testing sense, the subsequent UI interactions cannot be tested with JMeter - as there are no server interactions to simulate. However you can use the web-driver plugin to simulate and measure UI interactions if you so desire, with certain performance caveats as noted on the plugin webpage.
Lazy Loading
Only a minimal amount of data is fetched during page load, and when the user makes a selection a HTTP call (usually a XHR call) is made to fetch additional relevant data from the server. You can use JMeter proxy, fiddler, wireshark or any other HTTP inspection tools to capture the information in this call and convert it to a JMeter HTTP sampler.
The HTTP request url or body should contain parameters indicating what selection the user made in the UI, You need to parametrize/randomize this value to simulate random checkbox selections.
Related
jmeter http request results in a page that has div's, but the div's do not contain the rest of the http page.
If I use a browser's developer's view, I can expand the div's to see the rest of the http page results.
How do I get jmeter to show everything that is below the div's? The problem with getting all of the embedded resources is that the embedded resource shows ALL of the possible resulting page code for many different pages. I simply need the RESULT of ONE page to do testing that is specific to THAT page result.
You need to tick Retrieve All Embedded Resources on "Advanced" tab of the HTTP Request sampler (or even better HTTP Request Defaults). If you're receiving resources you're not interested in you have URLs must match input which acts in 2 modes:
You can put specify URL pattern which will match your ONLY ONE PAGE
You can specify URL pattern which will not match specified pages, i.e. something like ^((?!google|facebook|cdn|yahoo|microsoft).)*$ will exclude requests originating from google, facebook, cdn, yahoo and microsoft domains.
Patterns should be in form of Perl-5 style regular expressions. See Excluding Domains from the Load Test for more details.
As per JMeter project main page
JMeter is not a browser, it works at protocol level. As far as web-services and remote services are concerned, JMeter looks like a browser (or rather, multiple browsers); however JMeter does not perform all the actions supported by browsers. In particular, JMeter does not execute the Javascript found in HTML pages. Nor does it render the HTML pages as a browser does
So if you "divs" are populated by AJAX calls - JMeter will not execute them automatically, you will need to add the relevant HTTP Request samplers to mimic each AJAX call separately. As real browsers execute JavaScript asynchronously (in parallel) you should put these requests under Parallel Controller
And finally to put everything together it makes sense to place all the requests under Transaction Controller so you could measure how much time does whole sequence take.
I have a form, which is inside a div on page. When page is loaded, form start to load with a loading screen. JMeter capture it, when page is loaded, it doesn't wait for the form, so page loader is on 0 % when I view results. I tried to use Constant Timer to delay processing. JMeter says too early in this case, that request is successful, because a failure can happen during loading of input fields.
JMeter waits for the whole response with one little exception, as per JMeter project main page:
JMeter is not a browser, it works at protocol level. As far as web-services and remote services are concerned, JMeter looks like a browser (or rather, multiple browsers); however JMeter does not perform all the actions supported by browsers. In particular, JMeter does not execute the Javascript found in HTML pages. Nor does it render the HTML pages as a browser does (it's possible to view the response as HTML etc., but the timings are not included in any samples, and only one sample in one thread is ever displayed at a time).
So if your form is being loaded via AJAX request JMeter won't automatically execute it, you will have to add a separate HTTP Request sampler to invoke the relevant AJAX request(s) which will load your form.
In order to mimic real browser's behavior you can put the main and the "AJAX" requests under Parallel Controller (you can install it using JMeter Plugins Manager)
As we all know JMeter is not supporting JavaScript till now, but is there any alternative way to extract data from JavaScript's Response Data (Not generating exact response which we can get using Browser) using Regular Expression Extractor and inject it as parameter for another HTTP Request?
Note: In the response page getting message as "JavaScript is required. This web browser does not support JavaScript or JavaScript in this web browser is not enabled."
I think you are looking at HTML view. As documentation states:
The HTML view attempts to render the response as HTML. The rendered HTML is likely to compare poorly to the view one would get in any web browser; however, it does provide a quick approximation that is helpful for initial result evaluation.
Images, style-sheets, etc. aren't downloaded.
In your case that view is not very helpful, since page has <noscript> tag, which ensures that you only see one message about missing JavaScript. So don't look at it, use Text mode instead, which gives you the actual page source.
Another confusion you seems have is that JavaScript has some sort of "response data". It does not. JavaScript is a client-side technology, while JMeter is working directly with HTTP requests/responses. So when client issues a new HTTP request (which could be result of JavaScript code, user operation, or anything else), JMeter representation of such request is always the same: HTTP Sampler, which has some response data, which, as I said, bast viewed in Text mode.
So bottom line is: likely you have no problem with recording or playback of your script, you are just not checking it correctly.
If you send the same request as the browser you should get the same response. If you are receiving only the error message regarding not-enabled JavaScript - your test is not working properly and doesn't mimic all the requests which are being sent by a real browser with 100% accuracy (i.e. you are sending only main request with JMeter while browser does few more AJAX requests which fetch data from the server and actually render the content).
It also means that your test does not make a lot of sense as each JMeter virtual user needs to represent real user using real browser as close as possible with all its stuff (cookies, headers, cache, think times, etc.)
So I would recommend the next steps:
Make sure you have correlation in place.
Make sure you are following recommendations from the How to make JMeter behave more like a real browser article.
Once done - compare the request(s) which are being sent by browser and JMeter using a sniffer tool like Fiddler or Wireshark the requests should be exactly the same (apart from dynamic data which needs to be correlated). If there are inconsistencies or missing requests you need to amend JMeter configuration to so JMeter requests would exactly match the browser ones.
I tried to write manual scripts in JMETER.
How the parameters to pass for button click from HTTP Request?
While I inspect the button, I am getting.. class, button name.
Normally when you click HTML Button it should trigger submission of HTML Form so inspect the associated form to see the relevant URL, method and parameters.
However I believe that recording your test using JMeter's HTTP(S) Test Script Recorder is much faster and easier way of generating necessary HTTP Request samplers.
You can also consider an alternative way of recording JMeter tests which is capable of exporting recorded scenarios in "SmartJMX" mode performing automatic detection and correlation of dynamic parameters so you will be even just record and replay without taking extra steps manually, check out How to Cut Your JMeter Scripting Time by 80% article for details.
I have a site that I want to load links in the centre column, so why would I use AJAX over an iframe?
AJAX is a system which allows you to get data - any data - from a server. This is in contrast to iframes which simply load in a HTML document or fragment based on a given URL.
THe strength of AJAX's flexibility over iframes is their ability to give you back raw data with which you then use to build or update your view. Consider this example: you have a dataset that needs to be displayed in tabular form, so you could set up a page that contains the table with your data in it and load that in via iframe.
A better option however, is to get the raw data from the server with AJAX and send it to your application uncluttered by markup and extra tags. Your page then builds the table in whatever part of the page it needs, according to how your application needs it to appear right at that point.
Where iframes can load HTML content that must be presented as it is built, AJAX allows the developer to separate the data from the way it is presented, giving them the freedom to manipulate it as much as they like and use it in as many ways, pages and applications as they need.
More Information
AJAX allows the client or web page to send data back to the server to do things with (such as changing passwords, updating settings, or transaction processing, etc.) so if your page or application needs two-way communication without refreshing the page, AJAX is probably the technology you'd use.
Also, using iframes restricts your ability to work with the data inside. An iframe creates a new context which you can think of as a container of sorts - the data inside is safe from the outside and vice versa. This often means your CSS won't flow down into your iframe giving you unexpected results. On some browsers, clicking a link in an iframe can actually cause the link's destination to load inside the iframe instead of changing the whole page - usually not what you want.