Can't find and run generated unit tests

[sntran]

Version

3.0.0-rc.3

Reproduction link

https://github.com/sntran/vue-pwa-boilerplate

Steps to reproduce

$ vue create post-office


Vue CLI v3.0.0-rc.3
? Please pick a preset: Manually select features
? Check the features needed for your project: Babel, TS, PWA, Router, Vuex, Linter, Unit, E2E
? Use class-style component syntax? Yes
? Use Babel alongside TypeScript for auto-detected polyfills? Yes
? Pick a linter / formatter config: TSLint
? Pick additional lint features: Lint on save, Lint and fix on commit
? Pick a unit testing solution: Jest
? Pick a E2E testing solution: Cypress
? Where do you prefer placing config for Babel, PostCSS, ESLint, etc.? In package.json
? Save this as a preset for future projects? No

$ cd post-office
$ yarn test:unit

What is expected?

Tests in "tests/unit/HelloWorld.spec.ts" are found and run.

What is actually happening?

yarn run v1.7.0
$ vue-cli-service test:unit
No tests found
In /Users/sntran/Projects/post-office
  21 files checked.
  testMatch: /Users/sntran/Projects/post-office/(tests/unit/**/*.spec.(js|jsx|ts|tsx)|**/__tests__/*.(js|jsx|ts|tsx)) - 0 matches
  testPathIgnorePatterns: /node_modules/ - 21 matches
Pattern:  - 0 matches
 ERROR  jest exited with code 1.
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

---

E2E tests run fine.

This happens on MacOS High Sierra v10.13.5.

[Akryum]

Duplicate of #1686