Support .cts and .mts

README.md

@@ -47,7 +47,7 @@ You can enable compilation via the `compile` property. If `false`, AVA will assu
 
 Output files are expected to have the `.js` extension.
 
-AVA searches your entire project for `*.js`, `*.cjs`, `*.mjs` and `*.ts` files (or other extensions you've configured). It will ignore such files found in the `rewritePaths` targets (e.g. `build/`). If you use more specific paths, for instance `build/main/`, you may need to change AVA's `files` configuration to ignore other directories.
+AVA searches your entire project for `*.js`, `*.cjs`, `*.mjs`, `*.ts`, `*.cts` and `*.mts` files (or other extensions you've configured). It will ignore such files found in the `rewritePaths` targets (e.g. `build/`). If you use more specific paths, for instance `build/main/`, you may need to change AVA's `files` configuration to ignore other directories.
 
 ## ES Modules
 

index.js

@@ -83,7 +83,7 @@ export default function typescriptProvider({negotiateProtocol}) {
 			validate(config, configProperties);
 
 			const {
-				extensions = ['ts'],
+				extensions = ['ts', 'cts', 'mts'],
 				rewritePaths: relativeRewritePaths,
 				compile,
 			} = config;
@@ -118,7 +118,7 @@ export default function typescriptProvider({negotiateProtocol}) {
 					return rewritePaths.some(([from]) => filePath.startsWith(from));
 				},
 
-				resolveTestFile(testfile) {
+				resolveTestFile(testfile) { // Used under AVA 3.2 protocol by legacy watcher implementation.
 					if (!testFileExtension.test(testfile)) {
 						return testfile;
 					}
@@ -129,8 +129,14 @@ export default function typescriptProvider({negotiateProtocol}) {
 					}
 
 					const [from, to] = rewrite;
-					// TODO: Support JSX preserve mode — https://www.typescriptlang.org/docs/handbook/jsx.html
-					return `${to}${testfile.slice(from.length)}`.replace(testFileExtension, '.js');
+					let newExtension = '.js';
+					if (testfile.endsWith('.cts')) {
+						newExtension = '.cjs';
+					} else if (testfile.endsWith('.mts')) {
+						newExtension = '.mjs';
+					}
+
+					return `${to}${testfile.slice(from.length)}`.replace(testFileExtension, newExtension);
 				},
 
 				updateGlobs({filePatterns, ignoredByWatcherPatterns}) {
@@ -142,15 +148,19 @@ export default function typescriptProvider({negotiateProtocol}) {
 						],
 						ignoredByWatcherPatterns: [
 							...ignoredByWatcherPatterns,
-							...Object.values(relativeRewritePaths).map(to => `${to}**/*.js.map`),
+							...Object.values(relativeRewritePaths).flatMap(to => [
+								`${to}**/*.js.map`,
+								`${to}**/*.cjs.map`,
+								`${to}**/*.mjs.map`,
+							]),
 						],
 					};
 				},
 			};
 		},
 
 		worker({extensionsToLoadAsModules, state: {extensions, rewritePaths}}) {
-			const useImport = extensionsToLoadAsModules.includes('js');
+			const importJs = extensionsToLoadAsModules.includes('js');
 			const testFileExtension = new RegExp(`\\.(${extensions.map(ext => escapeStringRegexp(ext)).join('|')})$`);
 
 			return {
@@ -160,8 +170,18 @@ export default function typescriptProvider({negotiateProtocol}) {
 
 				async load(ref, {requireFn}) {
 					const [from, to] = rewritePaths.find(([from]) => ref.startsWith(from));
-					// TODO: Support JSX preserve mode — https://www.typescriptlang.org/docs/handbook/jsx.html
-					const rewritten = `${to}${ref.slice(from.length)}`.replace(testFileExtension, '.js');
+					let rewritten = `${to}${ref.slice(from.length)}`;
+					let useImport = true;
+					if (ref.endsWith('.cts')) {
+						rewritten = rewritten.replace(/\.cts$/, '.cjs');
+						useImport = false;
+					} else if (ref.endsWith('.mts')) {
+						rewritten = rewritten.replace(/\.mts$/, '.mjs');
+					} else {
+						rewritten = rewritten.replace(testFileExtension, '.js');
+						useImport = importJs;
+					}
+
 					return useImport ? import(pathToFileURL(rewritten)) : requireFn(rewritten); // eslint-disable-line node/no-unsupported-features/es-syntax
 				},
 			};

package.json

@@ -52,7 +52,8 @@
   },
   "xo": {
     "ignores": [
-      "test/broken-fixtures"
+      "test/broken-fixtures",
+      "test/fixtures/**/compiled/**"
     ]
   }
 }

test/fixtures/load/compiled/index.cjs

@@ -0,0 +1,3 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+console.log('logged in fixtures/load/index.cts');

test/fixtures/load/compiled/index.js

@@ -0,0 +1,2 @@
+console.log('logged in fixtures/load/index.ts');
+export {};

test/fixtures/load/compiled/index.mjs

@@ -0,0 +1,2 @@
+console.log('logged in fixtures/load/index.mts');
+export {};

test/fixtures/load/index.cts

@@ -0,0 +1 @@
+console.log('logged in fixtures/load/index.cts');

test/fixtures/load/index.mts

@@ -0,0 +1 @@
+console.log('logged in fixtures/load/index.mts');

test/fixtures/load/index.ts

@@ -0,0 +1 @@
+console.log('logged in fixtures/load/index.ts');

test/fixtures/esm/tsconfig.json → test/fixtures/load/tsconfig.json

@@ -1,5 +1,6 @@
 {
 	"compilerOptions": {
+		"module": "Node16",
 		"outDir": "compiled"
 	},
 	"include": [

test/load.js

@@ -0,0 +1,61 @@
+import path from 'node:path';
+import {fileURLToPath} from 'node:url';
+import test from 'ava';
+import execa from 'execa';
+import createProviderMacro from './_with-provider.js';
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
+const withProvider = createProviderMacro('ava-3.2', '3.2.0', path.join(__dirname, 'fixtures'));
+
+const setup = async provider => ({
+	state: await provider.main({
+		config: {
+			rewritePaths: {
+				'load/': 'load/compiled/',
+			},
+			compile: false,
+		},
+	}).compile(),
+});
+
+test('worker(): load .cts', withProvider, async (t, provider) => {
+	const {state} = await setup(provider);
+	const {stdout, stderr} = await execa.node(
+		path.join(__dirname, 'fixtures/install-and-load'),
+		[JSON.stringify({state}), path.join(__dirname, 'fixtures/load', 'index.cts')],
+		{cwd: path.join(__dirname, 'fixtures')},
+	);
+	if (stderr.length > 0) {
+		t.log(stderr);
+	}
+
+	t.snapshot(stdout);
+});
+
+test('worker(): load .mts', withProvider, async (t, provider) => {
+	const {state} = await setup(provider);
+	const {stdout, stderr} = await execa.node(
+		path.join(__dirname, 'fixtures/install-and-load'),
+		[JSON.stringify({state}), path.join(__dirname, 'fixtures/load', 'index.mts')],
+		{cwd: path.join(__dirname, 'fixtures')},
+	);
+	if (stderr.length > 0) {
+		t.log(stderr);
+	}
+
+	t.snapshot(stdout);
+});
+
+test('worker(): load .ts', withProvider, async (t, provider) => {
+	const {state} = await setup(provider);
+	const {stdout, stderr} = await execa.node(
+		path.join(__dirname, 'fixtures/install-and-load'),
+		[JSON.stringify({extensionsToLoadAsModules: ['js'], state}), path.join(__dirname, 'fixtures/load', 'index.ts')],
+		{cwd: path.join(__dirname, 'fixtures')},
+	);
+	if (stderr.length > 0) {
+		t.log(stderr);
+	}
+
+	t.snapshot(stdout);
+});

test/protocol-ava-3.2.js

@@ -53,8 +53,8 @@ test('main() config validation: rewrite paths must end in a /', withProvider, (t
 	validateConfig(t, provider, {rewritePaths: {'src/': 'build', compile: false}});
 });
 
-test('main() extensions: defaults to [\'ts\']', withProvider, (t, provider) => {
-	t.deepEqual(provider.main({config: {rewritePaths: {'src/': 'build/'}, compile: false}}).extensions, ['ts']);
+test('main() extensions: defaults to [\'ts\', \'cts\', \'mts\']', withProvider, (t, provider) => {
+	t.deepEqual(provider.main({config: {rewritePaths: {'src/': 'build/'}, compile: false}}).extensions, ['ts', 'cts', 'mts']);
 });
 
 test('main() extensions: returns configured extensions', withProvider, (t, provider) => {
@@ -76,6 +76,8 @@ test('main() ignoreChange()', withProvider, (t, provider) => {
 test('main() resolveTestfile()', withProvider, (t, provider) => {
 	const main = provider.main({config: {rewritePaths: {'src/': 'build/'}, compile: false}});
 	t.is(main.resolveTestFile(path.join(__dirname, 'src/foo.ts')), path.join(__dirname, 'build/foo.js'));
+	t.is(main.resolveTestFile(path.join(__dirname, 'src/foo.cts')), path.join(__dirname, 'build/foo.cjs'));
+	t.is(main.resolveTestFile(path.join(__dirname, 'src/foo.mts')), path.join(__dirname, 'build/foo.mjs'));
 	t.is(main.resolveTestFile(path.join(__dirname, 'build/foo.js')), path.join(__dirname, 'build/foo.js'));
 	t.is(main.resolveTestFile(path.join(__dirname, 'foo/bar.ts')), path.join(__dirname, 'foo/bar.ts'));
 });

test/snapshots/load.js.md

@@ -0,0 +1,23 @@
+# Snapshot report for `test/load.js`
+
+The actual snapshot is saved in `load.js.snap`.
+
+Generated by [AVA](https://avajs.dev).
+
+## worker(): load .cts
+
+> Snapshot 1
+
+    'logged in fixtures/load/index.cts'
+
+## worker(): load .mts
+
+> Snapshot 1
+
+    'logged in fixtures/load/index.mts'
+
+## worker(): load .ts
+
+> Snapshot 1
+
+    'logged in fixtures/load/index.ts'

test/snapshots/protocol-ava-3.2.js.md

@@ -111,5 +111,7 @@ Generated by [AVA](https://avajs.dev).
       ignoredByWatcherPatterns: [
         'assets/**',
         'build/**/*.js.map',
+        'build/**/*.cjs.map',
+        'build/**/*.mjs.map',
       ],
     }