Update supported Node.js version and dependencies

.github/workflows/ci.yml

@@ -13,7 +13,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node-version: [^10.18.0, ^12.14.0, ^13.5.0]
+        node-version: [^12.22, ^14.16, ^16]
         os: [ubuntu-latest, windows-latest]
     steps:
       - uses: actions/checkout@v1

.gitignore

@@ -1,3 +1,2 @@
-/.nyc_output
 /coverage
 /node_modules

index.js

@@ -1,4 +1,3 @@
-'use strict';
 const fs = require('fs');
 const path = require('path');
 const installPrecompiler = require('@ava/require-precompiled');
@@ -9,7 +8,7 @@ const convertSourceMap = require('convert-source-map');
 const dotProp = require('dot-prop');
 const escapeStringRegexp = require('escape-string-regexp');
 const findUp = require('find-up');
-const isPlainObject = require('is-plain-object');
+const {isPlainObject} = require('is-plain-object');
 const md5Hex = require('md5-hex');
 const packageHash = require('package-hash');
 const pkgConf = require('pkg-conf');
@@ -37,8 +36,8 @@ function enableParserPlugins(api) {
 
 	return {
 		name: 'ava-babel-pipeline-enable-parser-plugins',
-		manipulateOptions(_, parserOpts) {
-			parserOpts.plugins.push(
+		manipulateOptions(_, parserOptions) {
+			parserOptions.plugins.push(
 				'bigInt',
 				'classPrivateProperties',
 				'classProperties',
@@ -77,13 +76,13 @@ function wantsStage4(babelOptions, projectDir) {
 		return true;
 	}
 
-	const stage4 = require('./stage-4');
-	return babelOptions.presets.every(arr => {
-		if (!Array.isArray(arr)) {
+	const stage4 = require('./stage-4.js');
+	return babelOptions.presets.every(array => {
+		if (!Array.isArray(array)) {
 			return true; // There aren't any preset options.
 		}
 
-		const [ref, options] = arr;
+		const [ref, options] = array;
 		// Require the preset to handle any aliasing that may be taking place.
 		const resolved = require(babel.resolvePreset(ref, projectDir));
 		return resolved !== stage4 || options !== false;
@@ -119,12 +118,7 @@ function hashPartialConfig({babelrc, config, options: {plugins, presets}}, proje
 		}
 
 		const [firstComponent] = path.relative(projectDir, filename).split(path.sep);
-		let hash;
-		if (firstComponent === 'node_modules') {
-			hash = packageHash.sync(findUp.sync('package.json', {cwd: path.dirname(filename)}));
-		} else {
-			hash = md5Hex(stripBomBuf(fs.readFileSync(filename)));
-		}
+		const hash = firstComponent === 'node_modules' ? packageHash.sync(findUp.sync('package.json', {cwd: path.dirname(filename)})) : md5Hex(stripBomBuf(fs.readFileSync(filename)));
 
 		pluginAndPresetHashes.set(filename, hash);
 		inputs.push(hash);
@@ -182,12 +176,12 @@ function createCompileFn({babelOptions, cacheDir, compileEnhancements, projectDi
 		const {options: partialOptions} = partialConfig;
 		partialOptions.plugins.push(enableParserPlugins);
 
-		if (ensureStage4 && !partialOptions.presets.some(containsStage4)) {
+		if (ensureStage4 && !partialOptions.presets.some(preset => containsStage4(preset))) {
 			// Apply last.
 			partialOptions.presets.unshift(createConfigItem('./stage-4', 'preset'));
 		}
 
-		if (compileEnhancements && !partialOptions.presets.some(containsTransformTestFiles)) {
+		if (compileEnhancements && !partialOptions.presets.some(preset => containsTransformTestFiles(preset))) {
 			// Apply first.
 			partialOptions.presets.push(createConfigItem('./transform-test-files', 'preset', {powerAssert: true}));
 		}
@@ -344,13 +338,13 @@ module.exports = ({negotiateProtocol}) => {
 					}
 
 					return {
-						extensions: extensions.slice(),
+						extensions: [...extensions],
 						lookup
 					};
 				},
 
 				get extensions() {
-					return extensions.slice();
+					return [...extensions];
 				}
 			};
 		},

package.json

@@ -3,7 +3,7 @@
   "version": "1.0.1",
   "description": "Babel provider for AVA",
   "engines": {
-    "node": ">=10.18.0 <11 || >=12.14.0 <13 || >=13.5.0"
+    "node": ">=12.22 <13 || >=14.16 <15 || >=16"
   },
   "files": [
     "espower-patterns.json",
@@ -21,46 +21,46 @@
     "babel"
   ],
   "scripts": {
-    "test": "xo && nyc ava"
+    "test": "xo && c8 ava"
   },
   "dependencies": {
     "@ava/require-precompiled": "^1.0.0",
-    "@babel/core": "^7.8.4",
-    "@babel/generator": "^7.8.4",
-    "@babel/plugin-proposal-dynamic-import": "^7.8.3",
-    "@babel/plugin-proposal-nullish-coalescing-operator": "^7.8.3",
-    "@babel/plugin-proposal-optional-chaining": "^7.8.3",
-    "@babel/plugin-transform-modules-commonjs": "^7.8.3",
+    "@babel/core": "^7.14.6",
+    "@babel/generator": "^7.14.5",
+    "@babel/plugin-proposal-dynamic-import": "^7.14.5",
+    "@babel/plugin-proposal-nullish-coalescing-operator": "^7.14.5",
+    "@babel/plugin-proposal-optional-chaining": "^7.14.5",
+    "@babel/plugin-transform-modules-commonjs": "^7.14.5",
     "babel-plugin-espower": "^3.0.1",
-    "concordance": "^4.0.0",
-    "convert-source-map": "^1.7.0",
-    "dot-prop": "^5.2.0",
+    "concordance": "^5.0.4",
+    "convert-source-map": "^1.8.0",
+    "dot-prop": "^6.0.1",
     "empower-core": "^1.2.0",
-    "escape-string-regexp": "^2.0.0",
-    "find-up": "^4.1.0",
-    "is-plain-object": "^3.0.0",
+    "escape-string-regexp": "^4.0.0",
+    "find-up": "^5.0.0",
+    "is-plain-object": "^5.0.0",
     "md5-hex": "^3.0.1",
     "package-hash": "^4.0.0",
     "pkg-conf": "^3.1.0",
-    "source-map-support": "^0.5.16",
+    "source-map-support": "^0.5.19",
     "strip-bom-buf": "^2.0.0",
-    "write-file-atomic": "^3.0.1"
+    "write-file-atomic": "^3.0.3"
   },
   "devDependencies": {
-    "ava": "^3.2.0",
-    "execa": "^4.0.0",
-    "nyc": "^15.0.0",
+    "ava": "^3.15.0",
+    "c8": "^7.7.3",
+    "execa": "^5.1.1",
     "proxyquire": "^2.1.3",
-    "tempy": "^0.3.0",
-    "xo": "^0.25.3"
+    "tempy": "^1.0.1",
+    "xo": "^0.39.1"
   },
   "ava": {
     "files": [
       "test/**/*.js",
       "!test/fixtures/**/*.js"
     ]
   },
-  "nyc": {
+  "c8": {
     "reporter": [
       "html",
       "lcov",

stage-4-plugins/best-match.js

@@ -1,4 +1,3 @@
-'use strict';
 const process = require('process'); // eslint-disable-line node/prefer-global/process
 
 function getClosestVersion() {
@@ -7,7 +6,7 @@ function getClosestVersion() {
 		return 'v8-6.8';
 	}
 
-	const v8 = parseFloat(process.versions.v8);
+	const v8 = Number.parseFloat(process.versions.v8);
 	if (v8 >= 6.8) {
 		return 'v8-6.8';
 	}

stage-4.js

@@ -1,7 +1,6 @@
-'use strict';
 module.exports = (api, options) => {
 	const transformModules = !options || options.modules !== false;
-	const plugins = require('./stage-4-plugins/best-match')
+	const plugins = require('./stage-4-plugins/best-match.js')
 		.filter(module => {
 			if (transformModules) {
 				return true;

test/fixtures/esm-export.js

@@ -1 +1,2 @@
-export default 'value from esm-export.js';
+const value = 'value from esm-export.js';
+export default value;

test/fixtures/esm-import.cjs

@@ -1,3 +1,3 @@
-import value from './esm-export';
+import value from './esm-export.js';
 
 console.log('logging in esm-import.cjs:', value);

test/fixtures/esm-import.js

@@ -1,3 +1,3 @@
-import value from './esm-export';
+import value from './esm-export.js';
 
 console.log('logging in esm-import.js:', value);

test/fixtures/install-and-load.js

@@ -1,5 +1,5 @@
 const path = require('path');
-const makeProvider = require('../..');
+const makeProvider = require('../../index.js');
 
 const provider = makeProvider({
 	negotiateProtocol() {

test/protocol-ava-3.js

@@ -124,7 +124,7 @@ test('worker(): load compiled files', withProvider, async (t, provider) => {
 			t.log(stderr);
 		}
 
-		t.snapshot(stdout, file);
+		t.snapshot(stdout, `${file}`);
 	}
 });
 

test/snapshots/protocol-ava-3.js.md

@@ -2,31 +2,31 @@
 
 The actual snapshot is saved in `protocol-ava-3.js.snap`.
 
-Generated by [AVA](https://ava.li).
+Generated by [AVA](https://avajs.dev).
 
-## main() config validation: throw when babelConfig contains keys other than 'compileEnhancements', 'extensions' or 'testOptions'
+## main() config validation: throw when babelConfig is not true or a plain object
 
 > Snapshot 1
 
     Error {
       message: 'Unexpected Babel configuration for AVA. See https://github.com/avajs/babel/blob/v${pkg.version}/README.md for allowed values.',
     }
 
-## main() config validation: throw when babelConfig is not true or a plain object
-
-> Snapshot 1
+> Snapshot 2
 
     Error {
       message: 'Unexpected Babel configuration for AVA. See https://github.com/avajs/babel/blob/v${pkg.version}/README.md for allowed values.',
     }
 
-> Snapshot 2
+> Snapshot 3
 
     Error {
       message: 'Unexpected Babel configuration for AVA. See https://github.com/avajs/babel/blob/v${pkg.version}/README.md for allowed values.',
     }
 
-> Snapshot 3
+## main() config validation: throw when babelConfig contains keys other than 'compileEnhancements', 'extensions' or 'testOptions'
+
+> Snapshot 1
 
     Error {
       message: 'Unexpected Babel configuration for AVA. See https://github.com/avajs/babel/blob/v${pkg.version}/README.md for allowed values.',
@@ -40,23 +40,23 @@ Generated by [AVA](https://ava.li).
       message: 'Unexpected Babel configuration for AVA. See https://github.com/avajs/babel/blob/v${pkg.version}/README.md for allowed values.',
     }
 
-## main() config validation: throw when babelConfig.extensions contains duplicates
+## main() config validation: throw when babelConfig.extensions contains empty strings
 
 > Snapshot 1
 
     Error {
       message: 'Unexpected Babel configuration for AVA. See https://github.com/avajs/babel/blob/v${pkg.version}/README.md for allowed values.',
     }
 
-## main() config validation: throw when babelConfig.extensions contains empty strings
+## main() config validation: throw when babelConfig.extensions contains non-strings
 
 > Snapshot 1
 
     Error {
       message: 'Unexpected Babel configuration for AVA. See https://github.com/avajs/babel/blob/v${pkg.version}/README.md for allowed values.',
     }
 
-## main() config validation: throw when babelConfig.extensions contains non-strings
+## main() config validation: throw when babelConfig.extensions contains duplicates
 
 > Snapshot 1
 

test/snapshots/throws-helper.js.md

@@ -2,7 +2,7 @@
 
 The actual snapshot is saved in `throws-helper.js.snap`.
 
-Generated by [AVA](https://ava.li).
+Generated by [AVA](https://avajs.dev).
 
 ## creates a helper
 

test/stage-4.js

@@ -25,9 +25,9 @@ const buildPreset = (node, v8, options) => proxyquire('../stage-4', {
 
 function buildsCorrectPreset(t, node, v8, mapping) {
 	const {plugins} = buildPreset(node, v8);
-	require(mapping).forEach((module, index) => {
+	for (const [index, module] of require(mapping).entries()) {
 		t.is(require(module).default, plugins[index], `${module} at index ${index}`);
-	});
+	}
 }
 
 buildsCorrectPreset.title = (_, node) => `builds correct preset for Node.js ${node}`;

test/throws-helper.js

@@ -1,6 +1,6 @@
 const test = require('ava');
 const babel = require('@babel/core');
-const fn = require('../throws-helper');
+const fn = require('../throws-helper.js');
 
 function transform(input) {
 	return babel.transform(input, {

test/transform-test-files.js

@@ -2,8 +2,8 @@ const {runInNewContext} = require('vm');
 const test = require('ava');
 const babel = require('@babel/core');
 const empower = require('empower-core');
-const throwsHelper = require('../throws-helper');
-const buildPreset = require('../transform-test-files');
+const throwsHelper = require('../throws-helper.js');
+const buildPreset = require('../transform-test-files.js');
 
 const ESPOWER_PATTERNS = require('../espower-patterns.json');
 
@@ -27,12 +27,9 @@ test('resulting preset transforms assertion patterns', t => {
 
 	const appliedPatterns = [];
 	// Create a stub assertion object that can be enhanced using empower-core
-	const assert = ESPOWER_PATTERNS
-		.map(p => /^t\.(.+)\(/.exec(p)[1]) // eslint-disable-line prefer-named-capture-group
-		.reduce((assert, name) => {
-			assert[name] = () => {};
-			return assert;
-		}, {});
+	const assert = Object.fromEntries(ESPOWER_PATTERNS
+		.map(p => /^t\.(.+)\(/.exec(p)[1])
+		.map(name => [name, () => {}]));
 
 	runInNewContext(code, {
 		t: empower(assert, {

throws-helper.js

@@ -1,5 +1,3 @@
-'use strict';
-
 module.exports = babelCore => {
 	const t = babelCore.types;
 	const wrapArg = babelCore.template('(START(t, ASSERTION, FILE, LINE), END(t, ARG))');

transform-test-files.js

@@ -1,4 +1,3 @@
-'use strict';
 const ESPOWER_PATTERNS = require('./espower-patterns.json');
 
 module.exports = (context, options) => {
@@ -11,7 +10,7 @@ module.exports = (context, options) => {
 		}]);
 	}
 
-	plugins.push(require('./throws-helper'));
+	plugins.push(require('./throws-helper.js'));
 
 	return {plugins};
 };