feat(e2e-webdriverio): add e2e plugin for WebdriverIO (#5479)

Author: christian-bromann

docs/.vuepress/config.js

@@ -184,7 +184,8 @@ module.exports = {
               '/core-plugins/unit-jest.md',
               '/core-plugins/unit-mocha.md',
               '/core-plugins/e2e-cypress.md',
-              '/core-plugins/e2e-nightwatch.md'
+              '/core-plugins/e2e-nightwatch.md',
+              '/core-plugins/e2e-webdriverio.md'
             ]
           }],
 

docs/config/README.md

@@ -446,3 +446,7 @@ See [@vue/cli-plugin-e2e-cypress](https://github.com/vuejs/vue-cli/tree/dev/pack
 ### Nightwatch
 
 See [@vue/cli-plugin-e2e-nightwatch](https://github.com/vuejs/vue-cli/tree/dev/packages/%40vue/cli-plugin-e2e-nightwatch) for more details.
+
+### WebdriverIO
+
+See [@vue/cli-plugin-e2e-webdriverio](https://github.com/vuejs/vue-cli/tree/dev/packages/%40vue/cli-plugin-e2e-webdriverio) for more details.

docs/core-plugins/README.md

@@ -12,3 +12,4 @@ This section contains documentation for core Vue CLI plugins:
 - [Mocha](unit-mocha.md)
 - [Cypress](e2e-cypress.md)
 - [Nightwatch](e2e-nightwatch.md)
+- [WebdriverIO](e2e-webdriverio.md)

docs/core-plugins/e2e-webdriverio.md

@@ -0,0 +1,64 @@
+# @vue/cli-plugin-e2e-nightwatch
+
+> e2e-webdriverio plugin for vue-cli
+
+## Injected Commands
+
+- **`vue-cli-service test:e2e`**
+
+  Run end-to-end tests with [WebdriverIO](https://webdriver.io/).
+
+  Options:
+
+  ```
+  --url                 run the tests against given url instead of auto-starting dev server
+  --headless            use chrome or firefox in headless mode
+  --remote              run e2e tests on a cloud provider
+  ```
+
+  Additionally, all [WebdriverIO CLI options](https://webdriver.io/docs/clioptions.html) are also supported.
+  E.g.: `--spec`, `--watch` etc.
+
+
+## Project Structure
+
+The following structure will be generated when installing this plugin. It includes a spec file a page object definition for the Vue.js app as example.
+
+```
+tests/e2e/
+  ├── pageobjects/
+  |   └── app.page.js
+  ├── specs/
+  |   ├── app.spec.js
+  └── .eslintrc.js
+```
+
+#### `pageobjects`
+Working with page objects is a popular methodology in end-to-end UI testing. See [working with page objects](https://webdriver.io/docs/pageobjects.html) section for details.
+
+#### `specs`
+The main location where tests are located. You can specify specific tests or define suites to run various subsets of these tests. [More info](https://webdriver.io/docs/organizingsuites.html).
+
+## Installing in an Already Created Project
+
+``` sh
+vue add e2e-webdriverio
+```
+
+## Running Tests
+
+By default, all tests inside the `specs` folder will be run using Chrome. If you'd like to run end-to-end tests against Chrome (or Firefox) in headless mode, simply pass the `--headless` argument.
+
+```sh
+$ vue-cli-service test:e2e
+```
+
+This will run the tests automatically in parallel on Firefox and Chrome.
+
+**Running a single test**
+
+To run a single test supply the filename path. E.g.:
+
+```sh
+$ vue-cli-service test:e2e --spec tests/e2e/specs/test.js
+```

packages/@vue/cli-plugin-e2e-webdriverio/.npmignore

@@ -0,0 +1,2 @@
+__tests__
+__mocks__

packages/@vue/cli-plugin-e2e-webdriverio/README.md

@@ -0,0 +1,81 @@
+# @vue/cli-plugin-e2e-webdriverio
+
+> e2e-webdriverio plugin for vue-cli
+
+## Injected Commands
+
+- **`vue-cli-service test:e2e`**
+
+  Run end-to-end tests with [WebdriverIO](https://webdriver.io/).
+
+  Options:
+
+  ```
+  --remote          Run tests remotely on SauceLabs
+
+  All WebdriverIO CLI options are also supported.
+
+  ```
+
+  Additionally, all [WebdriverIO CLI options](https://webdriver.io/docs/clioptions.html) are also supported.
+  E.g.: `--baseUrl`, `--bail` etc.
+
+
+## Project Structure
+
+The following structure will be generated when installing this plugin:
+
+```
+tests/e2e/
+  ├── pageobjects/
+  |   └── app.js
+  ├── specs/
+  |   ├── app.spec.js
+  └── globals.js
+```
+
+In addition to that there will be 3 configuration files generated:
+
+- `wdio.shared.conf.js`: a shared configuration with all options defined for all environments
+- `wdio.local.conf.js`: a local configuration for local testing
+- `wdio.sauce.conf.js`: a remote configuration for testing on a cloud provider like [Sauce Labs](https://saucelabs.com/)
+
+The directories contain:
+
+#### `pageobjects`
+Contains an example for an page object. Read more on using [PageObjects](https://webdriver.io/docs/pageobjects.html) with WebdriverIO.
+
+#### `specs`
+Your e2e tests.
+
+## Installing in an Already Created Project
+
+``` sh
+vue add e2e-webdriverio
+```
+
+For users with older CLI versions you may need to run `vue add @vue/e2e-webdriverio`.
+
+## Running Tests
+
+By default, all tests inside the `specs` folder will be run using Chrome. If you'd like to run end-to-end tests against Chrome (or Firefox) in headless mode, simply pass the `--headless` argument. Tests will be automatically run in parallel when executed in the cloud.
+
+```sh
+$ vue-cli-service test:e2e
+```
+
+**Running a single test**
+
+To run a single test supply the filename path. E.g.:
+
+```sh
+$ vue-cli-service test:e2e --spec tests/e2e/specs/test.js
+```
+
+**Skip Dev server auto-start**
+
+If the development server is already running and you want to skip starting it automatically, pass the `--url` argument:
+
+```sh
+$ vue-cli-service test:e2e --baseUrl=http://localhost:8080/
+```

packages/@vue/cli-plugin-e2e-webdriverio/__tests__/wdioPlugin.spec.js

@@ -0,0 +1,41 @@
+jest.setTimeout(process.env.APPVEYOR ? 120000 : 60000)
+
+const create = require('@vue/cli-test-utils/createTestProject')
+
+test('should work', async () => {
+  const project = await create('e2e-webdriverio', {
+    plugins: {
+      '@vue/cli-plugin-babel': {},
+      '@vue/cli-plugin-e2e-webdriverio': {},
+      '@vue/cli-plugin-eslint': {
+        config: 'airbnb',
+        lintOn: 'save'
+      }
+    }
+  })
+
+  if (!process.env.CI) {
+    await project.run(`vue-cli-service test:e2e`)
+  } else if (!process.env.APPVEYOR) {
+    await project.run(`vue-cli-service test:e2e --headless`)
+  }
+})
+
+test('should work with TS', async () => {
+  const project = await create('e2e-webdriverio-ts', {
+    plugins: {
+      '@vue/cli-plugin-typescript': {
+        'classComponent': true,
+        'tsLint': true,
+        'lintOn': ['save']
+      },
+      '@vue/cli-plugin-e2e-webdriverio': {}
+    }
+  })
+
+  if (!process.env.CI) {
+    await project.run(`vue-cli-service test:e2e`)
+  } else if (!process.env.APPVEYOR) {
+    await project.run(`vue-cli-service test:e2e --headless`)
+  }
+})

packages/@vue/cli-plugin-e2e-webdriverio/generator/index.js

@@ -0,0 +1,35 @@
+const { installedBrowsers } = require('@vue/cli-shared-utils')
+
+module.exports = (api, { webdrivers }) => {
+  api.render('./template', {
+    hasTS: api.hasPlugin('typescript'),
+    hasESLint: api.hasPlugin('eslint')
+  })
+
+  const devDependencies = {}
+
+  // Use devDependencies to store latest version number so as to automate update
+  const pluginDeps = require('../package.json').devDependencies
+
+  if (webdrivers && webdrivers.includes('firefox')) {
+    devDependencies.geckodriver = pluginDeps.geckodriver
+    devDependencies['wdio-geckodriver-service'] = pluginDeps['wdio-geckodriver-service']
+  }
+  if (webdrivers && webdrivers.includes('chrome')) {
+    // chromedriver major version bumps every 6 weeks following Chrome
+    // so there may be a mismatch between
+    // user's installed browser version and the default provided version
+    // fallback to the devDependencies version in case detection fails
+    devDependencies['wdio-chromedriver-service'] = pluginDeps['wdio-chromedriver-service']
+    devDependencies.chromedriver = installedBrowsers.chrome
+      ? installedBrowsers.chrome.match(/^(\d+)\./)[1]
+      : pluginDeps.chromedriver
+  }
+
+  api.extendPackage({
+    scripts: {
+      'test:e2e': 'vue-cli-service test:e2e'
+    },
+    devDependencies
+  })
+}

packages/@vue/cli-plugin-e2e-webdriverio/generator/template/logs/.gitkeep

@@ -0,0 +1,12 @@
+<%_ if (hasESLint) { _%>
+module.exports = {
+  plugins: ['wdio'],
+  extends: 'plugin:wdio/recommended',
+  env: {
+    mocha: true
+  },
+  rules: {
+    strict: 'off'
+  }
+}
+<%_ } _%>