Jmeter how to find the difference in two time which is stored in string

Question

I have below values String CurrentTime1=${__groovy(${__groovy(Date.parse('yyyy-MM-dd hh:mm:ss.SSS','${Modified_date_1}').getTime(),)},)} log.info("Current time1 ----> "+CurrentTime1); String beforetime=vars.get("beforetime");

log.info(" after time -->"+beforetime);

Result: Current time1 ----> 1611495406402 after time -->1611495402100

As there are stored in string, i am not able to get the difference between these values. Can you please help.

I need to get the difference between current time and before time which are dynamic values.

question from:https://stackoverflow.com/questions/65871300/jmeter-how-to-find-the-difference-in-two-time-which-is-stored-in-string

Answer 1

If you want to do this in Groovy - you need to convert the string to Long like:

def before = vars.get('beforetime') as long
def current =  vars.get('CurrentTime1') as long

def delta = current - before
def deltaAsString = delta as String

If you prefer using JMeter Functions - you can go for __longSum()

${__longSum(${CurrentTime1},-${beforetime},)}

More information on this and other JMeter Functions: How to Use JMeter Functions - Part III

But don't mix both approaches like inlining JMeter functions in Groovy code, as per JSR223 Sampler documentation:

When using this feature, ensure your script code does not use JMeter variables or JMeter function calls directly in script code as caching would only cache first replacement. Instead use script parameters.