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Integrating Adonis.js with Nightwatch for End-to-End Testing

Adonis.js is a popular Node.js framework for building web applications, and Nightwatch.js is a powerful end-to-end testing framework. While Adonis.js comes with its own testing framework, you may want to use Nightwatch.js for its advanced features and flexibility. In this article, we'll explore how to integrate Adonis.js with Nightwatch.js for end-to-end testing.

Setting up Adonis.js and Nightwatch.js

To get started, you'll need to set up both Adonis.js and Nightwatch.js in your project. First, create a new Adonis.js project using the following command:

npm init adonis-ts-app@latest my-adonis-app

Next, install Nightwatch.js using npm:

npm install nightwatch

Configuring Nightwatch.js

To configure Nightwatch.js, create a new file called `nightwatch.conf.js` in the root of your project:

module.exports = {
  // We use a custom config file to avoid conflicts with Adonis.js
  // config file
  config: './nightwatch.conf.js',
  // We use the Chrome browser for our tests
  test_settings: {
    default: {
      desiredCapabilities: {
        browserName: 'chrome',
      },
    },
  },
  // We use the Adonis.js server for our tests
  selenium: {
    start_process: false,
  },
  // We use the Adonis.js test environment for our tests
  env: 'testing',
}

Writing End-to-End Tests with Nightwatch.js

Now that you have Nightwatch.js set up, you can start writing end-to-end tests for your Adonis.js application. Create a new file called `tests/e2e/example.test.js`:

const { Client } = require('nightwatch-api');

module.exports = {
  'example test': (browser) => {
    browser
      .url('http://localhost:3333')
      .waitForElementVisible('body')
      .assert.title('My Adonis.js App')
      .end();
  },
};

Running End-to-End Tests with Nightwatch.js

To run your end-to-end tests with Nightwatch.js, use the following command:

npx nightwatch

Integrating Nightwatch.js with Adonis.js

To integrate Nightwatch.js with Adonis.js, you'll need to create a custom test runner that starts the Adonis.js server before running the Nightwatch.js tests. Create a new file called `tests/e2e/runner.js`:

const { exec } = require('child_process');
const { Client } = require('nightwatch-api');

const startServer = () => {
  return new Promise((resolve, reject) => {
    const server = exec('node ace serve --watch', { cwd: process.cwd() });
    server.stdout.on('data', (data) => {
      if (data.includes('Server started on port 3333')) {
        resolve();
      }
    });
    server.stderr.on('data', (data) => {
      reject(data);
    });
  });
};

const runTests = async () => {
  await startServer();
  const client = new Client();
  await client.init();
  await client.runTests();
  await client.end();
};

runTests();

Conclusion

In this article, we explored how to integrate Adonis.js with Nightwatch.js for end-to-end testing. We set up both Adonis.js and Nightwatch.js, configured Nightwatch.js, wrote end-to-end tests, and integrated Nightwatch.js with Adonis.js. With this setup, you can now use Nightwatch.js to write advanced end-to-end tests for your Adonis.js application.

Frequently Asked Questions

Q: What is Nightwatch.js?

Nightwatch.js is a powerful end-to-end testing framework for Node.js applications.

Q: How do I configure Nightwatch.js?

You can configure Nightwatch.js by creating a custom config file called `nightwatch.conf.js` in the root of your project.

Q: How do I write end-to-end tests with Nightwatch.js?

You can write end-to-end tests with Nightwatch.js by creating a new file in the `tests/e2e` directory and using the Nightwatch.js API.

Q: How do I run end-to-end tests with Nightwatch.js?

You can run end-to-end tests with Nightwatch.js by using the `npx nightwatch` command.

Q: How do I integrate Nightwatch.js with Adonis.js?

You can integrate Nightwatch.js with Adonis.js by creating a custom test runner that starts the Adonis.js server before running the Nightwatch.js tests.

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