Vue Test Utils
Component testing utils for Vue 3.
Languages
🇫🇷 French version of this README.md
Installation and Usage
- yarn:
yarn add @vue/test-utils --dev - npm:
npm install @vue/test-utils --save-dev
Get started with the documentation.
Coming from Vue 2 + Test Utils v1?
Check the migration guide. It's still a work in progress. If you find a problem or something that doesn't work that previously did in Vue Test Utils v1, please open an issue.
Documentation
See the docs.
Development
Get started by running pnpm install. You can run the tests with pnpm test. That's it!
Comparison with Vue Test Utils v1 (targeting Vue 2)
This is table for those coming from VTU 1, comparing the two APIs. Some things are still a work in progress.
- ✅ - implemented
- ❌ - not yet implemented
- ⚰️ - will not be implemented (if you have a compelling use case, please open an issue)
Mounting Options
| option | status | notes |
|---|---|---|
| data | ✅ | |
| slots | ✅ | |
| mocks | ✅ | nested in global |
| propsData | ✅ | now called props |
| provide | ✅ | nested in global |
| mixins | ✅ | (new!) nested in global |
| plugins | ✅ | (new!) nested in global |
| component | ✅ | (new!) nested in global |
| directives | ✅ | (new!) nested in global |
| stubs | ✅ | |
| attachToDocument | ✅ | renamed attachTo. See here |
| attrs | ✅ | |
| scopedSlots | ⚰️ | scopedSlots are merged with slots in Vue 3 |
| context | ⚰️ | different from Vue 2, does not make sense anymore. |
| localVue | ⚰️ | no longer required - Vue 3 there is no global Vue instance to mutate. |
| listeners | ⚰️ | no longer exists in Vue 3 |
| parentComponent | ⚰️ |
Wrapper API (mount)
| method | status | notes |
|---|---|---|
| attributes | ✅ | |
| classes | ✅ | |
| exists | ✅ | |
| find | ✅ | only querySelector syntax is supported. find(Comp) under discussion here |
| emitted | ✅ | |
| findAll | ✅ | see above. .vm is different to Vue 2. We are exploring options. |
| get | ✅ | |
| html | ✅ | |
| setValue | ✅ | works for select, checkbox, radio button, input, textarea. Returns nextTick. |
| text | ✅ | |
| trigger | ✅ | returns nextTick. You can do await wrapper.find('button').trigger('click') |
| setProps | ✅ | |
| props | ✅ | |
| setData | ✅ | |
| destroy | ✅ | renamed to unmount to match Vue 3 lifecycle hook name. |
| props | ✅ | |
| isVisible | ✅ | |
| contains | ⚰️ | use find |
| emittedByOrder | ⚰️ | use emitted |
| setSelected | ⚰️ | now part of setValue |
| setChecked | ⚰️ | now part of setValue |
| is | ⚰️ | |
| isEmpty | ⚰️ | use matchers such as this |
| isVueInstance | ⚰️ | |
| name | ⚰️ | |
| setMethods | ⚰️ |