A good system is one who keeps its performance remarkable no matter what the amount of data its dealing with. So for short scope systems testing with few records is manageable but when it comes to vast systems creating 1000's of records manually for multiple fields is really boring.

it's great when we have an existing set of data to use for the system but there are plenty of times where we’re tasked with an entirely new system concept that might not have years and years of data to work with. At that point, we need to generate our own data.

With the release of FileMaker 19, this task becomes much easier. Now, FileMaker19 can simply use JS (JavaScript) to generate our Test Data. We luckily have access to robust libraries whose sole purpose is to generate fake data for testing purposes. The library is called faker.js. This library exposes a wealth of different methods for generating various types of fake data. It ranges from contact names, company names, dates, currency amounts, internet domains, lorem ipsum text, phone numbers, file names, and more.

Here's a full guide.