Unittesting in TypeScript [closed]

Question

I know, TypeScript is one day old. But I`m curious if is here somekind unit test framework or way how to write and run unit tests for TypeScript?

TypeScript can be compiled to JavaScript and I can write test for that JavaScript, but it`s not what I want.

Answer 1

TypeScript is not a runtime language. To execute your TypeScript code you first need to compile it to JavaScript; same applies to testing it. Your tests can be in TypeScript as well, compile both into JavaScript and use your favorite test framework to execute the tests.

Answer 2

You can write your unit tests in TypeScript or JavaScript, using any of the existing JavaScript unit testing frameworks.

Very soon, I imagine the existing frameworks will get TypeScript ambient definition files(update - they have: http://definitelytyped.org/ ), which will make them statically typed as far as TypeScript is concerned. In the meantime, you may need to read up on Ambient Declarations and add a few of your own at the start of your tests.

Alternatively, you can use tsUnit TypeScript Unit Testing Framework, which is a unit testing framework written in TypeScript - so it plays nice with TypeScript (and can be used in JavaScript too).