Between my test case execution i want to insert some wait time. how can this be accomplished.
i have tried sleep call in extension tool, but is there any build in feature?
You can use Test Flow Logic to set delay before and after test case execution.
To set it up you need to open test suite containing your test, go to Execution Options tab, then select Test Flow Logic and your test. In the following example test wait 5s before execution starts:
If test is parametrized it will wait for every test iteration.
You can also use extension from marketplace: Wait for X Milliseconds