Here's a real-life example: In our web application, many of our pages return a "200" response code, but the actual page returned is an error message to the end user. In our system, all of our "end user error messages" follow a consistent pattern in the HTML of the returned page. So we have a negative assertion that checks that these patterns don't exist in any returned page - so we know that the system did not return an error during the JMeter run.
Likewise, on most pages we have an assertion for some HTML pattern that will only be present if the correct successful page is returned. BUT, assertions are relatively expensive in JMeter - meaning they add a lot of test of processing to the script, and slow down throughput of JMeter. (They use regular expressions to parse the returned data fro the server, which takes a lot of compute power.) So use them efficiently... -- Robin D. Wilson VOICE: 512-777-1861 On Oct 9, 2014, at 4:26 AM, ZK <stevesenio...@gmail.com> wrote: Hi, Assertions let you check the response you receive are the correct expected responses See here: http://blazemeter.com/blog/how-use-jmeter-assertions-3-easy-steps ZK -- View this message in context: http://jmeter.512774.n5.nabble.com/what-is-the-use-of-assertion-tp5721177p5721178.html Sent from the JMeter - User mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscr...@jmeter.apache.org For additional commands, e-mail: user-h...@jmeter.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscr...@jmeter.apache.org For additional commands, e-mail: user-h...@jmeter.apache.org