New project created with jest and typescript fails to run unit tests

[phil-scott-78]

Version

3.0.3

Reproduction link

https://github.com/phil-scott-78/vue-cli-jest-bug

Node and OS info

Node v8.11.2, npm 5.6, Windows 10

Steps to reproduce

1. vue create project
2. manual options
3. choose at least typescript and unit testing
4. class style component
5. no babel
6. jest for unit testing
7. either config

then

npm run test:unit

What is expected?

successful unit test run

What is actually happening?

receive this error

    Cannot find module 'vue-property-decorator' from 'HelloWorld.vue'

      32 |
      33 | <script lang="ts">
    > 34 | import { Component, Prop, Vue } from 'vue-property-decorator';
         | ^
      35 |
      36 | @Component
      37 | export default class HelloWorld extends Vue {

      at Resolver.resolveModule (node_modules/jest-resolve/build/index.js:221:17)
      at src/components/HelloWorld.vue:34:1
      at Object.<anonymous> (src/components/HelloWorld.vue:27:3)

---

Things work fine if you aren't using typescript, so I suspect ts-jest is at fault. But to be honest this is my first steps into using jest with typescript so I'm a bit in over my head with troubleshooting.

[nklayman]

I get the same error on Ubuntu 18.04, so it's not platform-specific.

[phil-scott-78]

Did some more sleuthing this morning. Looked to be an issue with the version 7.1.0 of vue-property-decorator. Looks like @kaorun343 already pushed up a fix. Updating to version 7.1.1 and everything is happy.