Consider testing types

[literat]

• https://www.totaltypescript.com/how-to-test-your-types
• https://github.com/tsdjs/tsd

[mrazauskas]

Please consider using TSTyche, https://github.com/tstyche/tstyche

This is my project. It loads TypeScript already installed in a project instead of installing it again. Hence TSTyche install size is only 227kB (in contrary tsd is 48MB).

It allows testing on specific version of TypeScript: tstyche --target 5.2. Or version range: tstyche --target '>=5.2'.

It has test() and describe() with .only and .skip. These are invaluable for a larger project.

Also --watch mode. And other features we are used to have in JavaScript testing tools.