How to use different tsconfig file for tests?

Question

in my project I use 2 different tsconfig files

• tsconfig.json
• tsconfig.specs.json - for testing

how can I tell Intellij Idea to use both?
i.e. In Settings - Langauges & Frameworks - TypeScript I can switch between different Compile scopes, but the Options are not per compile scope (but only once per project).

Notes:

• I use IntelliJ IDEA Ultimate 18.2.5
• I found a related issue WEB-15538: TypeScript WebStorm 10 EAP: Scope & by module configuration- but maybe this was only fixed for WebStorm - not in Idea Ultimate?

Answer 1

I think we only need to register the file-types:

In Settings | Editor | File Types > TypeScript Config add your custom tsconfig file names, e.g.

• tsconfig.app.json
• tsconfig.lib.json
• tsconfig.spec.json
• etc.

With these settings in place:

• IntelliJ should show syntax highlighting and completion suggestions in your tsconfig files
• the IntelliJ typescript service should recognize all these tsconfig files and compile everything:
  i.e. it is important that you use include/exclude in each of the tsconfig files, so that only the relevant files are compiled