chore: add integration tests for migrate

test/migrate/config/migrate-config.test.js

@@ -0,0 +1,22 @@
+'use strict';
+
+const { run } = require('../../utils/test-utils');
+
+describe('migrate command', () => {
+    it('should warn if the source config file is not specified', () => {
+        const { stderr } = run(__dirname, ['migrate'], false);
+        expect(stderr).toContain('Please specify a path to your webpack config');
+    });
+
+    it('should prompt accordingly if an output path is not specified', () => {
+        const { stdout, stderr } = run(__dirname, ['migrate', 'webpack.config.js'], false);
+        expect(stdout).toContain('Migration output path not specified.');
+        expect(stderr).toBeFalsy();
+    });
+
+    it('should work fine', () => {
+        const { stdout, stderr } = run(__dirname, ['migrate', 'webpack.config.js', 'output.js'], false);
+        expect(stdout).toBeTruthy();
+        expect(stderr).toBeFalsy();
+    });
+});

test/migrate/config/webpack.config.js

@@ -0,0 +1,62 @@
+/* eslint-disable */
+const ExtractTextPlugin = require('extract-text-webpack-plugin');
+const HtmlWebpackPlugin = require('html-webpack-plugin');
+const path = require('path');
+const webpack = require('webpack');
+
+module.exports = {
+    entry: {
+        index: './src/index.js',
+        vendor: './src/vendor.js',
+    },
+
+    output: {
+        filename: '[name].[chunkhash].js',
+        chunkFilename: '[name].[chunkhash].js',
+        path: path.resolve(__dirname, 'dist'),
+    },
+
+    module: {
+        rules: [
+            {
+                test: /\.js$/,
+                exclude: /node_modules/,
+
+                use: [{
+                    loader: 'babel-loader',
+
+                    options: {
+                        presets: ['@babel/preset-env'],
+                    }
+                }]
+            },
+            {
+                test: /\.(scss|css)$/,
+                use: ExtractTextPlugin.extract({
+                    fallback: 'style',
+                    use: 'css!sass'
+                }),
+            },
+        ],
+    },
+
+    plugins: [new ExtractTextPlugin('styles-[contentHash].css'), new HtmlWebpackPlugin()],
+
+    optimization: {
+        minimize: true
+    },
+
+    optimizations: {
+        splitChunks: {
+            cacheGroups: {
+                common: {
+                    name: 'common',
+                    chunks: 'initial',
+                    enforce: true,
+                    minChunks: 2,
+                    filename: 'common-[hash].min.js'
+                }
+            }
+        }
+    }
+};