Testing in TS

As noted in the testing intro, you are free to test your Sway and TS-SDK code with any JS framework available. Below we have an example of how to load and test a contract using Vitest, but the general principles and steps are the same for any testing harness.

Here is a simple Sway program that takes an input and then returns it:

Here is JavaScript code testing the above program using a conventional Vitest setup:

Note: The TS-SDK has recently migrated to Vitest however it follows a very similar API to Jest, and the above example applies to Jest also.