mirror of
https://github.com/cypress-io/cypress.git
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84 lines
2.7 KiB
Markdown
84 lines
2.7 KiB
Markdown
# CLI
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The CLI is used to build the [cypress npm module](https://www.npmjs.com/package/cypress) to be run within a terminal.
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**The CLI has the following responsibilities:**
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- Allow users to print CLI commands
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- Allow users to install the Cypress executable
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- Allow users to print their current Cypress version
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- Allow users to run Cypress tests from the terminal
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- Allow users to open Cypress in the interactive Test Runner.
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- Allow users to verify that Cypress is installed correctly and executable
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- Allow users to manages the Cypress binary cache
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- Allow users to pass in options that change way tests are ran or recorded (browsers used, specfiles ran, grouping, parallelization)
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## Building
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See `scripts/build.js`. Note that the built npm package will include [NPM_README.md](NPM_README.md) as its public README file.
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## Testing
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### Automated
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From the repo's root, you can run unit tests with:
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```bash
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yarn test-unit --scope cypress
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yarn test-watch --scope cypress
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yarn test-debug --scope cypress
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```
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### Updating snapshots
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Prepend `SNAPSHOT_UPDATE=1` to any test command. See [`snap-shot-it` instructions](https://github.com/bahmutov/snap-shot-it#advanced-use) for more info.
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```bash
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SNAPSHOT_UPDATE=1 yarn test-unit --scope cypress
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```
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#### Type Linting
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When testing with `dtslint`, you may need to remove existing typescript installations before running the type linter (for instance, on OS X, you might `rm -rf ~/.dts/typescript-installs`) in order to reproduce issues with new versions of typescript (i.e., `@next`).
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### Manual
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To build and test an NPM package:
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- `yarn`
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- `yarn build`
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This creates `build` folder.
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- `cd build; yarn pack`
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This creates an archive, usually named `cypress-v<version>.tgz`. You can install this archive from other projects, but because there is no corresponding binary yet (probably), skip binary download. For example from inside `cypress-example-kitchensink` folder
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```shell
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yarn add ~/{your-dirs}/cypress/cli/build/cypress-3.3.1.tgz --ignore-scripts
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```
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Which installs the `tgz` file we have just built from folder `Users/jane-lane/{your-dirs}/cypress/cli/build`.
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#### Module API
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The module API can be tested locally using something like:
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```typescript
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/* @ts-ignore */
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import cypress from '../../cli/lib/cypress'
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const run = cypress.run as (options?: Partial<CypressCommandLine.CypressRunOptions>) => Promise<CypressCommandLine.CypressRunResult | CypressCommandLine.CypressFailedRunResult>
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run({
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spec: './cypress/component/advanced/framer-motion/Motion.spec.tsx',
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testingType: 'component',
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/* @ts-ignore */
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dev: true,
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}).then(results => {
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console.log(results)
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})
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```
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Note that the `dev` flag is required for local testing, as otherwise the command will fail with a binary error.
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