@denis
To run unit tests with webpack, you can use a testing framework such as Jest, Mocha, or Karma. Here is a general guide on how to run unit tests with webpack using Jest as an example:
- Install Jest and any necessary dependencies:
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npm install jest webpack jest-cli babel-jest @babel/preset-env --save-dev
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- Create a webpack configuration file (webpack.config.js) to bundle your test files:
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module.exports = {
entry: './test/**/*.js',
output: {
path: path.resolve(__dirname, 'dist'),
filename: 'test.bundle.js'
},
module: {
rules: [
{
test: /.js$/,
exclude: /node_modules/,
use: {
loader: 'babel-loader'
}
}
]
}
};
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- Add a script in your package.json to run Jest with webpack:
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"scripts": {
"test": "jest --config=jest.config.js"
}
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- Create a Jest configuration file (jest.config.js) to specify the test environment and setup files:
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module.exports = {
testEnvironment: 'node',
setupFilesAfterEnv: ['./jest.setup.js']
};
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- Create a setup file (jest.setup.js) to configure Jest with webpack:
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const webpack = require('webpack');
const config = require('./webpack.config.js');
module.exports = async () => {
await new Promise((resolve, reject) => {
webpack(config, (err, stats) => {
if (err || stats.hasErrors()) {
reject(err || stats.toJson().errors);
} else {
resolve();
}
});
});
};
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- Write your unit tests using Jest syntax and run them with the following command:
This will bundle your test files with webpack and run them using Jest. You can customize this setup further based on your specific requirements and testing framework.
