refactor: better testbed

.gitignore

@@ -1,2 +1,2 @@
 node_modules
-
+package_node_modules

package.json

@@ -5,11 +5,14 @@
   "license": "MIT",
   "devDependencies": {
     "chai": "^4.2.0",
+    "glob": "7.1.4",
+    "mkdirp": "0.5.1",
     "mocha": "6.0.2",
     "mochapack": "1.1.0",
     "webpack": "4.29.6"
   },
+  "private": true,
   "scripts": {
-    "test": "find packages -type d -name node_modules -exec rm -r {} \\; && mochapack --watch --webpack-config webpack.test.config.js 'packages/**/*.spec.js'"
+    "test": "./sync-package-modules.sh && find packages -type d -name node_modules -exec rm -r {} \\; && mochapack --watch --webpack-config webpack.test.config.js 'packages/**/*.spec.js'"
   }
 }

sync-package-modules.sh

@@ -0,0 +1,44 @@
+#!/usr/bin/env node
+const child_process = require('child_process');
+const fs = require('fs');
+const path = require('path');
+
+const glob = require('glob');
+const mkdirp = require('mkdirp');
+
+// Package node modules.
+mkdirp.sync('package_node_modules');
+const modules = [];
+for (const package of glob.sync('packages/*')) {
+  const packageJSON = JSON.parse(
+    fs.readFileSync(path.join(package, 'package.json'))
+  );
+  modules.push(...Object.keys(packageJSON.dependencies || {}));
+  modules.push(...Object.keys(packageJSON.devDependencies || {}));
+}
+// Filter out packages.
+const remoteModules = modules.filter((module) => {
+  return 0 !== module.indexOf('@avocado');
+})
+// Enter and run yarn.
+const options = {
+  cwd: path.join(__dirname, 'package_node_modules'),
+  stdio: 'inherit',
+};
+child_process.spawnSync(
+  'yarn',
+  [
+    'init',
+    '-y',
+  ],
+  options
+);
+child_process.spawnSync(
+  'yarn',
+  [
+    '--modules-folder',
+    options.cwd,
+    'add'
+  ].concat(remoteModules),
+  options
+);

webpack.test.config.js

@@ -1,3 +1,14 @@
+const path = require('path');
+
 module.exports = {
   mode: 'development',
+  resolve: {
+    alias: {
+      '@avocado': path.resolve(__dirname, 'packages'),
+    },
+    modules: [
+      'node_modules',
+      'package_node_modules',
+    ],
+  },
 };