To ensure that your action doesn't have any functional issues, you may have to test your action before deploying it to production. In addition to that, you can also verify the user experience and ensure that it works as you have configured.
To test your action before deploying it, use the sample chat window on the right-side panel of the Edit Functions page. This sample chat window would look similar to the actual chat window of your bot in the production.
Using this, you can test only the current action. If the given invoking sentence is irrelevant to the current action, the bot wouldn't be able to understand it and would reply the same. Even the other actions of this skill will not work here.
Override Session Data
If your functions use the sessionData argument in its logic, then you can test your action with different sets of mock session data using the Override Session Data option. For instance, if you have written any code logic specific to the mobile client, you can set the apt session data values and mock how the logic would work, if the bot is being accessed from an actual mobile client in production. Click on the Override Session Data option and provide apt values to the attributes. Upon saving, the configured values will be passed to the sessionData argument from the next conversation.