Integrating Jasmine with Creator TS files?

Have any of you guys successfully integrated Jasmine with Typescript? I’ve tried to transpile the TS files into JS so Jasmine can execute the tests but Creator complains about duplicated files (same file twice: js and ts).

How do you guys managed to integrate TDD/BDD into your typescript projects?

Edit: I’m aware I can use tsc --outDIR to aoutput js to a folder otside the project, but I would prefer to find a more elegant way of doing it, if possible.