Deps: Bump @babel/generator from 7.22.10 to 7.22.15

jest-eslint.config.js

@@ -10,6 +10,7 @@
 module.exports = {
 	testEnvironment: 'node',
 	runner: 'jest-runner-eslint',
+	testSequencer: '<rootDir>/test/support/eslintSequencer.js',
 	testMatch: ['<rootDir>/**/*.(js|cjs|mjs|jsx)'],
 	// Jest by default uses a number of workers equal to number of CPU cores minus 1.
 	// Github Actions runners provide 2 cores and running with 2 workers is faster than 1.

jest.config.js

@@ -26,6 +26,8 @@ module.exports = {
 		'<rootDir>/test/support/register.js'
 	],
 	testSequencer: '<rootDir>/test/support/sequencer.js',
+	// Disable babel-jest transformation
+	transform: {},
 	// Jest by default uses a number of workers equal to number of CPU cores minus 1.
 	// Github Actions runners provide 2 cores and running with 2 workers is faster than 1.
 	...(process.env.CI && {maxWorkers: '100%'})

package.json

@@ -36,7 +36,7 @@
   },
   "dependencies": {
     "@babel/core": "^7.22.11",
-    "@babel/generator": "^7.22.10",
+    "@babel/generator": "^7.22.15",
     "@babel/helper-module-transforms": "^7.22.9",
     "@babel/parser": "^7.22.13",
     "@babel/plugin-transform-modules-commonjs": "^7.22.11",

test/support/eslintSequencer.js

@@ -0,0 +1,26 @@
+/* --------------------
+ * livepack
+ * Custom test sequencer for Jest ESLint
+ * ------------------*/
+
+'use strict';
+
+// Modules
+const fs = require('fs'),
+	Sequencer = require('@jest/test-sequencer').default;
+
+// Exports
+
+// Custom sequencer to ensure the largest files are run first.
+// `jest-runner-eslint` doesn't seem to sequence automatically.
+// https://github.com/jest-community/jest-runner-eslint/issues/204
+// TODO: Remove this workaround once above issue is fixed.
+
+module.exports = class CustomSequencer extends Sequencer {
+	sort(tests) {
+		tests = super.sort(tests);
+		const testsWithFileSizes = tests.map(test => ({test, size: fs.statSync(test.path).size}));
+		testsWithFileSizes.sort((t1, t2) => (t1.size > t2.size ? -1 : t1.size < t2.size ? 1 : 0));
+		return testsWithFileSizes.map(({test}) => test);
+	}
+};

test/support/register.js

@@ -3,22 +3,39 @@
  * Tests install require hook to intrument test files' code
  * ------------------*/
 
-/* eslint-disable import/order, import/newline-after-import */
+/* eslint-disable import/order, import/no-dynamic-require, global-require */
 
 'use strict';
 
+// Imports
+const {
+	useInternalModuleCache, useGlobalModuleCache, usingInternalModuleCache, Module
+} = require('../../lib/shared/moduleCache.js');
+
 // Patch filesystem for virtual fixtures files
 require('./fixturesFs.js');
 
+// Pre-load `fast-json-stable-stringify`.
+// `jest-light-runner` imports `jest-snapshot` which requires `@jest/transform`.
+// After `jest-light-runner`'s worker loads the test file, it runs a method on `jest-snapshot`
+// which causes `@jest/transform` to lazily require `fast-json-stable-stringify`.
+// Trigger this now, so `fast-json-stable-stringify` is not loaded later and unnecessarily instrumented.
+// `createScriptTransformer()` when called with no arguments throws an error before it does anything.
+const {createRequire} = Module,
+	jestLightRunnerPath = require.resolve('jest-light-runner'),
+	jestSnapshotPath = createRequire(jestLightRunnerPath).resolve('jest-snapshot'),
+	jestTransformPath = createRequire(jestSnapshotPath).resolve('@jest/transform');
+if (Module._cache[jestTransformPath]) {
+	const jestTransform = require(jestTransformPath);
+	jestTransform.createScriptTransformer().catch(() => {});
+}
+
 // Install register require hook.
 // Disable instrumentation cache. Tests run in multiple threads, so it'd be read from and written to
 // concurrently unless disabled.
 require('../../register.js')({cache: false});
 
 // Use internal module cache to avoid transpiling modules
-const {
-	useInternalModuleCache, useGlobalModuleCache, usingInternalModuleCache
-} = require('../../lib/shared/moduleCache.js');
 useInternalModuleCache();
 
 // Modules