yarn/npm run test - runs e2e tests instead of unit tests

[natasher]

Version

3.0.0-alpha.8

Reproduction link

https://github.com/natasher/vue-cli-test/

Steps to reproduce

Terminal:

1. vue create cli-test
2. When @vue/cli asks for test tools, choose Cypress for e2e and Mocha Chai for unit tests.
3. yarn test

What is expected?

Runs test/unit/HelloWorld.spec.js

What is actually happening?

Runs test/e2e/specs/test.js

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If path to unit tests folder is provided in package.json ( scripts / test : vue-cli-service test test/unit ), script runs as expected.
Additionally script complains for module.exports (probably mixed with import ).