Testing with Jest and Jasmine in Typescript (tests successful, tslint errors)

My tests are passing successfully with jasmine (library tests) and jest (snapshot tests) thanks to including these lines at the top of my test files:

/// <reference path="../../node_modules/@types/jasmine/index.d.ts" />

// -> in my jest test files
/// <reference path="../../node_modules/@types/jest/index.d.ts" />

However, when I use tslint, I encounter Duplicate errors like:

ERROR in [at-loader] ./node_modules/@types/jest/index.d.ts:12:13
    TS2300: Duplicate identifier 'fdescribe'.

The issue arises because I can't exclude the d.ts files for jasmine and jest since they're necessary for my tests. But I want to exclude them from tslint. Is there a configuration solution that allows me to do this? I've come across some discussions on this matter but no definitive solutions have been proposed.

typescriptjestjs

Answer №1

I was able to solve the issue by updating my tsconfig file and excluding all my test files that have the extension spec.tsx.

"exclude": [
    "node_modules",
    "**/*.spec.tsx",
    // ... etc

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