97 lines
3.1 KiB
Markdown
97 lines
3.1 KiB
Markdown
# Cypress Plugin
|
|
|
|
|
|
|
|
Cypress is an e2e test runner built for modern web. It has a lot of great features:
|
|
|
|
- Time travel
|
|
- Real-time reloads
|
|
- Automatic waiting
|
|
- Spies, stubs, and clocks
|
|
- Network traffic control
|
|
- Screenshots and videos
|
|
|
|
## Setting Up Cypress
|
|
|
|
### Generating Applications
|
|
|
|
By default, when creating a new frontend application, Nx will use Cypress to create the e2e tests project.
|
|
|
|
```bash
|
|
nx g @nrwl/web:app frontend
|
|
```
|
|
|
|
### Creating a Cypress E2E project for an existing project
|
|
|
|
You can create a new Cypress E2E project for an existing project.
|
|
|
|
If the `@nrwl/cypress` package is not installed, install the version that matches your `@nrwl/workspace` version.
|
|
|
|
```bash
|
|
yarn add --dev @nrwl/cypress
|
|
```
|
|
|
|
```bash
|
|
npm install --save-dev @nrwl/cypress
|
|
```
|
|
|
|
Next, generate an E2E project based on an existing project.
|
|
|
|
```bash
|
|
nx g @nrwl/cypress:cypress-project your-app-name-e2e --project=your-app-name
|
|
```
|
|
|
|
Replace `your-app-name` with the app's name as defined in your `workspace.json` file.
|
|
|
|
## Using Cypress
|
|
|
|
### Testing Applications
|
|
|
|
Simply run `nx e2e frontend-e2e` to execute e2e tests with Cypress.
|
|
|
|
By default, Cypress will run in headless mode. You will have the result of all the tests and errors (if any) in your terminal. Screenshots and videos will be accessible in `dist/apps/frontend/screenshots` and `dist/apps/frontend/videos`.
|
|
|
|
### Watching for Changes
|
|
|
|
With, `nx e2e frontend-e2e --watch` Cypress will start in the application mode.
|
|
|
|
Running Cypress with `--watch` is a great way to enhance dev workflow - you can build up test files with the application running and Cypress will re-run those tests as you enhance and add to the suite.
|
|
|
|
Cypress doesn't currently re-run your tests after changes are made to application code when it runs in “headed” mode.
|
|
|
|
### Using Cypress in the Headed Mode
|
|
|
|
You can run Cypress in headed mode to see your app being tested. To do this, pass in the `--watch` option. E.g: `nx frontend-e2e --watch`
|
|
|
|
### Testing Against Prod Build
|
|
|
|
You can run your e2e test against a production build like this: `nx e2e frontend-e2e --prod`.
|
|
|
|
## Configuration
|
|
|
|
### Specifying a Custom Url to Test
|
|
|
|
The `baseUrl` property provides you the ability to test an application hosted on a specific domain.
|
|
|
|
```bash
|
|
nx e2e frontend-e2e --baseUrl=https://frontend.com
|
|
```
|
|
|
|
> If no `baseUrl` and no `devServerTarget` are provided, Cypress will expect to have the `baseUrl` property in the `cypress.json` file, or will error.
|
|
|
|
### Using cypress.json
|
|
|
|
If you need to fine tune your Cypress setup, you can do so by modifying `cypress.json` in the e2e project. For instance, you can easily add your `projectId` to save all the screenshots and videos into your Cypress dashboard. The complete configuration is documented on [the official website](https://docs.cypress.io/guides/references/configuration.html#Options).
|
|
|
|
## More Documentation
|
|
|
|
React Nx Tutorial
|
|
|
|
- [Step 2: Add E2E Tests](/react-tutorial/02-add-e2e-test)
|
|
- [Step 3: Display Todos](/react-tutorial/03-display-todos)
|
|
|
|
Angular Nx Tutorial
|
|
|
|
- [Step 2: Add E2E Tests](/angular-tutorial/02-add-e2e-test)
|
|
- [Step 3: Display Todos](/angular-tutorial/03-display-todos)
|