I recorded a jmeter script, it has all the resources BUT the 3rd party call. If I put only main html URL and check download embedded resources with 6 parallel connection, it downloads all the resources which were downloaded when I recorded the script but also has 3rd party calls which are not there in recorded script. Why is that so? Your help would be deeply appreciated. Thanks.
My expectation is that this 3rd-party call is being filtered by the HTTP(S) Test Script Recorder, if you use the Recording Template - there are some pre-defined suggested excludes, so most probably your 3rd-party call matches one of them:
There is a possibility to filter out 3rd-party calls for the "embedded resources" as well, you can put the patterns you don't need to test i.e. in the HTTP Requests Defaults
Related
i am still new to JMeter and i was assigned to a work that I will need to use JMeter to perform automation testing. The idea is to write script using JMeter and run the script to fill in the forms in the website. I was curious that can JMeter use different data from the database to fill in the form of the website everytime it execute?(unique data for every user)
I have followed this tutorial (https://www.blazemeter.com/blog/fill-forms-and-submit-with-jmeter-made-easy/ ) and it succeed, however, when i try to change the parameter name (to some other names that do not matches the field name found in the inpect mode), it still works. So i was wondering how JMeter knows where to put in the parameter even i have change to a wrong field name?
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).
Browsers don't do any magic, they execute HTTP Requests, wait for response and render it. JMeter in its turn can execute the same HTTP requests so traffic would be the same, however it will not render the response, but rather measure the time and collect some more metrics.
If you change the names of the inputs in the form most probably the request will be successful, to wit you will get HTTP Status Code below 400 hence JMeter will mark the result as "green", however if you inspect the response using View Results Tree listener you will see that the form is not filled and/or you still at the same page.
If you want to use JMeter for checking the data returned by the application you're testing consider using JMeter Assertions to test presence of expected values, absence of errors, set response time thresholds, etc.
You can automate the form submission or order placement usin JMeter. You can JMeter for API testing as well by adding assertions. But the main purpose of the JMeter is to test the performance of the application. Its not like selenium which performs actions on the browser whereas JMeter sends the request in various protocols to relevant server and can also simulate many users at the same time.
If you want to do extensive automation testing,JMeter isnt the ideal tool for that.
You can use webdriver sampler to run the selenium with jmeter. It requires to configure sampler and browser config which are plugin and can be downloaded using plugin manager.
For more info:-https://www.blazemeter.com/blog/jmeter-webdriver-sampler/
Now, without the plugin it is working on protocol level and not on the frontend as pointed out in the above comments.
So, yes it can depend on which layer you want to work. It can work on frontend like selenium using the webdriver plugin and can submit the form with different data as a direct request to the server without using the frontend/GUI.
Hope this helps.
It depends on what you are trying to automate. If you plan to automate API invocation where there are some pre-requisites like grabbing tokens, cookies, session IDs from the browser, then JMeter can probably be used where existing JMeter capabilities can be leveraged using BeanShell scripting and other plugins.
But if you plan to have a full blown UI automation framework then JMeter might not be an ideal choice.
I am in a process to capture all the request when an HTML page is loaded. My end goal is to create a report with the time taken for each individual request and also for the total time taken to load the entire page. I have tried to use the performance.getEntries() but it is limited to store only 150 request in the buffer. To overcome this I tried to set the performance.setResourceTimingBufferSize(size) but this buffer size is reset to default 150 when i refresh the page.
I would like to know the solution for below few things,
how to set the performance.setResourceTimingBufferSize(size) before loading any page (if I set it when the page is loading it misses to capture some of the request). Few suggested to set this in HTML head tag, but this is not possible in my case because i need to use selenium and i cant modify anything in source file.
I also found that we can save all the request as HAR file in chrome console. is there any way to do it in automated way?
Is there any other way to capture all the request ?
PS: I a using Jmeter (to simulate multiple users) to run the selenium scripts using web driver sampler. The automated way in the sense it should be done using selenium.
You can use BrowserMob proxy in order to create and start a proxy server which will capture data and save it in form of .har
Download BrowserMob proxy and put .jar files somewhere into JMeter Classpath
Restart JMeter to pick the .jars put
In setUp Thread Group add JSR223 Sampler and put the following code into "Script" area
import net.lightbody.bmp.BrowserMobProxy
import net.lightbody.bmp.BrowserMobProxyServer
import net.lightbody.bmp.proxy.CaptureType
def proxy = new BrowserMobProxyServer()
def captureTypes = new HashSet<>();
captureTypes.addAll(CaptureType.getAllContentCaptureTypes());
captureTypes.addAll(CaptureType.getHeaderCaptureTypes());
captureTypes.addAll(CaptureType.getCookieCaptureTypes());
proxy.setHarCaptureTypes(captureTypes);
proxy.start(8080)
proxy.newHar()
props.put('proxy', proxy)
Set up your Chrome Driver Config to use proxy from the step 3
Add tearDown Thread Group to your Test Plan and in another JSR223 Sampler use the following code to store requests made by the WebDriver Sampler(s) into a .har file:
def proxy = props.get('proxy')
proxy.getHar().writeTo(new File('some.har'))
proxy.stop()
That's it, now you should have .har file generated during test execution.
References:
BrowserMob Proxy: Embedded Mode
Apache Groovy - Why and How You Should Use It
For your goal, you can try https://gtmetrix.com/. This will give you a report for the load time and all the requests in waterfall model like in browser. Moreover, you can download the full report in pdf and can do compare and retest.
There you can also download the HAR file.
Though, it is not related to selenium but may fit your goal and It can be automated.
I wanted to know if JMeter has a option where you wait until some element disappears.
Example a loading bar only once that has completed or no longer visible then to carry on. (Also being able to monitor the length of time taken)
I have through about writing it as a webdriver test and then running it as a Junit test in JMeter but wanted to know if there is a simpler solution.
Any ideas welcome :)
First of all you need to realize that JMeter is not a browser
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 JMeter doesn't execute any client-side JavaScript, the only way of implementing "wait until" option is using While Controller in order to re-execute the same request again and again until response data will contain (or stop containing) the element you're looking for.
If you need to evaluate client-side JavaScript the only option would be going for Selenium. I would recommend using WebDriver Sampler instead of going for JUnit as this way you won't have to recompile your script for any change, it will be inlined into .jmx
You can use Transaction Controller to monitor the time taken by the whole process and to wait for a change , have a look at this:
http://www.sourcepole.ch/2011/1/4/waiting-for-a-page-change-in-jmeter
I have recorded a user journey in JMeter (using AngularJS). When I click a link that spawns a GET request to a page, in-turn it spawns additional sub-requests to some page resources (images).
In Short:
Test Plan
-- Thread Group
---- Transaction Controller
------ HTTP Request (Main sample)
Here the main sample triggers additional sub-samples for resources and they fail due to path issues however this works manually using a browser.
I am in need to change the path of the sub-samples or not fail on a 404 for these sub-samples.
The fact you are getting different results in browser and JMeter indicates that your JMeter test is not well-behaved as it doesn't replicate browser requests with 100% accuracy therefore your load test doesn't make a lot of sense as "good" load tests must represent real user sitting behind real browser as close as possible. I would recommend comparing requests which are being sent from browser and JMeter with a sniffer tool like Fiddler or Wireshark, identify the differences and amend JMeter configuration so JMeter-driven requests would be exact replica of browser-driven ones (apart from dynamic parameters)
For the time being I can tell you only how to convert failed sub-samples into successful ones.
Add JSR223 PostProcessor as a child of your main request
Put the following code into "Script" area:
prev.getSubResults().each {
it.setSuccessful(true)
}
That's it, the above Groovy code will mark all sub-samples as successful no matter of original status (the response status code, message, body, etc. will remain original, JMeter just won't consider them as failed anymore). See Apache Groovy - Why and How You Should Use It article to learn more about using Groovy scripting in JMeter tests.
Let me describe the issue which i have been facing.
i want to do performance and load testing on our internal website. which has login and other functionalities.
the issue i am facing that when i hit 12 or any number of request using http sampler then i am getting same response from all the 12 request. But actual scenario is that webpage displays different data for different page.
I checked using firebug and everything is working fine over there using correct response from request but when i use jmeter i am using same response from every request.
Please let me know if anybody had faced same kind of issue of is there anything i am doing wrong in configuring script.
Try to add HTTP Cookie Manager to your test-plan to the root (Test Plan) node or to the Thread Group node.
As per jmeter documentation:
The last element is a HTTP Cookie Manager. A Cookie Manager should be
added to all web tests - otherwise JMeter will ignore cookies. By
adding it at the Thread Group level, we ensure that all HTTP requests
will share the same cookies.
Ensure that parameters values that are dynamic are not hard-coded (after recording jmeter scripts, for example): no hard-coded JSessionID values in your HTTP requests, e.g..
Ensure you don't miss any necessary params in your HTTP requests.
JMeter does not process Javascript or applets embedded in HTML pages.
Your problem may be caused by this feature.
As per jmeter documentation:
JMeter does not process Javascript or applets embedded in HTML pages.
JMeter can download the relevant resources (some embedded resources
are downloaded automatically if the correct options are set), but it
does not process the HTML and execute any Javascript functions.
If the page uses Javascript to build up a URL or submit a form, you
can use the Proxy Recording facility to create the necessary sampler.
If this is not possible, then manual inspection of the code may be
needed to determine what the Javascript is doing.
I would also recommend your to look first into Jmeter reference before further scripting activities - this may prevent from some faults and frustration.
At least these:
Building a Test Plan
Elements of a Test Plan
Building a Web Test Plan
Building an Advanced Web Test Plan
Hope this helps.
I would suggest - Use Jmeter's Regular Expressions. You may be able to resolve this issue with RegEx. Post using regex, use 'View Results Tree' listener to check if you are getting apt response for each of your threads.
You can also analyze your results using Blazemeter's listener that gives you more insights into your test.