130 lines
4.0 KiB
Markdown
130 lines
4.0 KiB
Markdown
# End to End Testing Environment
|
|
|
|
A reusable and extendable E2E testing environment for WooCommerce extensions.
|
|
|
|
## Installation
|
|
|
|
```bash
|
|
npm install @woocommerce/e2e-environment --save
|
|
npm install jest --global
|
|
```
|
|
|
|
## Configuration
|
|
|
|
The `@woocommerce/e2e-environment` package exports configuration objects that can be consumed in JavaScript config files in your project. Additionally, it includes a hosting container for running tests and includes instructions for creating your Travis CI setup.
|
|
|
|
### Babel Config
|
|
|
|
Make sure you `npm install @babel/preset-env --save` if you have not already done so. Afterwards, extend your project's `babel.config.js` to contain the expected presets for E2E testing.
|
|
|
|
```js
|
|
const { useE2EBabelConfig } = require( '@woocommerce/e2e-environment' );
|
|
|
|
module.exports = function( api ) {
|
|
api.cache( true );
|
|
|
|
return useE2EBabelConfig( {
|
|
presets: [
|
|
'@wordpress/babel-preset-default',
|
|
],
|
|
} );
|
|
};
|
|
```
|
|
|
|
### ES Lint Config
|
|
|
|
The E2E environment uses Puppeteer for headless browser testing, which uses certain globals variables. Avoid ES Lint errors by extending the config.
|
|
|
|
```js
|
|
const { useE2EEsLintConfig } = require( '@woocommerce/e2e-environment' );
|
|
|
|
module.exports = useE2EEsLintConfig( {
|
|
root: true,
|
|
env: {
|
|
browser: true,
|
|
es6: true,
|
|
node: true
|
|
},
|
|
globals: {
|
|
wp: true,
|
|
wpApiSettings: true,
|
|
wcSettings: true,
|
|
es6: true
|
|
},
|
|
} );
|
|
```
|
|
|
|
### Jest Config
|
|
|
|
The E2E environment uses Jest as a test runner. Extending the base config is needed in order for Jest to run your project's test files.
|
|
|
|
```js
|
|
const path = require( 'path' );
|
|
const { useE2EJestConfig } = require( '@woocommerce/e2e-environment' );
|
|
|
|
const jestConfig = useE2EJestConfig( {
|
|
roots: [ path.resolve( __dirname, '../specs' ) ],
|
|
} );
|
|
|
|
module.exports = jestConfig;
|
|
```
|
|
|
|
**NOTE:** Your project's Jest config file is expected to be: `tests/e2e/config/jest.config.js`.
|
|
|
|
### Jest Puppeteer Config
|
|
|
|
The test sequencer uses the following default Puppeteer configuration:
|
|
|
|
```js
|
|
// headless
|
|
puppeteerConfig = {
|
|
launch: {
|
|
// Required for the logged out and logged in tests so they don't share app state/token.
|
|
browserContext: 'incognito',
|
|
},
|
|
};
|
|
// dev mode
|
|
puppeteerConfig = {
|
|
launch: {
|
|
...jestPuppeteerConfig.launch, // @automattic/puppeteer-utils
|
|
ignoreHTTPSErrors: true,
|
|
headless: false,
|
|
args: [ '--window-size=1920,1080', '--user-agent=chrome' ],
|
|
devtools: true,
|
|
defaultViewport: {
|
|
width: 1280,
|
|
height: 800,
|
|
},
|
|
},
|
|
};
|
|
```
|
|
|
|
You can customize the configuration in `tests/e2e/config/jest-puppeteer.config.js`
|
|
|
|
```js
|
|
const { useE2EJestPuppeteerConfig } = require( '@woocommerce/e2e-environment' );
|
|
|
|
const puppeteerConfig = useE2EJestPuppeteerConfig( {
|
|
launch: {
|
|
headless: false,
|
|
}
|
|
} );
|
|
|
|
module.exports = puppeteerConfig;
|
|
```
|
|
|
|
### Jest Setup
|
|
|
|
Jest provides setup and teardown functions similar to PHPUnit. The default setup and teardown is in [`tests/e2e/env/src/setup/jest.setup.js`](src/setup/jest.setup.js). Additional setup and teardown functions can be added to [`tests/e2e/config/jest.setup.js`](../config/jest.setup.js)
|
|
|
|
### Container Setup
|
|
|
|
Depending on the project and testing scenario, the built in testing environment container might not be the best solution for testing. This could be local testing where there is already a testing container, a repository that isn't a plugin or theme and there are multiple folders mapped into the container, or similar. The `e2e-environment` container supports using either the built in container or an external container. See the the appropriate readme for details:
|
|
|
|
- [Built In Container](https://github.com/woocommerce/woocommerce/tree/master/tests/e2e/env/builtin.md)
|
|
- [External Container](https://github.com/woocommerce/woocommerce/tree/master/tests/e2e/env/external.md)
|
|
|
|
## Additional information
|
|
|
|
Refer to [`tests/e2e/core-tests`](https://github.com/woocommerce/woocommerce/tree/master/tests/e2e/core-tests) for some test examples, and [`tests/e2e`](https://github.com/woocommerce/woocommerce/tree/master/tests/e2e) for general information on e2e tests.
|