Is it possible to do Functional Testing w/ JMeter - Invalid input test and required field input test?
I need to know if it's possible to do functional testing (frontend or backend) with JMeter only - w/o 3rd party software. I need to be able to test required fields and bad data input in a form.
You cannot test frontend using JMeter mainly due to its main constraint, as per JMeter project main page:
However you can easily send invalid data inside a HTTP Request and then use Response Assertion to ensure that the response contains expected value(s) or vice versa, doesn't contain something which it shouldn't be containing. You can also mark HTTP status codes above 400 as successful by ticking