fix(repl): specify ts loader (#46)

Co-authored-by: Hiroki Osame <hiroki.osame@gmail.com>

src/repl.ts

@@ -14,7 +14,11 @@ const nodeRepl = repl.start();
 const { eval: defaultEval } = nodeRepl;
 
 const preEval: REPLEval = async function (code, context, filename, callback) {
-	const transformed = await transform(code, '.ts').catch(
+	const transformed = await transform(
+		code,
+		filename,
+		{ loader: 'ts' },
+	).catch(
 		(error) => {
 			console.log(error.message);
 			return { code: '\n' };

tests/index.ts

@@ -42,6 +42,7 @@ const nodeVersions = [
 					import('./specs/watch'),
 					fixture.path,
 				);
+				runTestSuite(import('./specs/repl'));
 			});
 
 			for (const nodeVersion of nodeVersions) {

tests/specs/repl.ts

@@ -0,0 +1,34 @@
+import { testSuite } from 'manten';
+import { tsx } from '../utils/tsx';
+
+export default testSuite(async ({ describe }) => {
+	describe('repl', ({ test }) => {
+		test('handles ts', async () => {
+			const tsxProcess = tsx({
+				args: [],
+			});
+
+			const commands = [
+				'const message: string = "SUCCESS"',
+				'message',
+			];
+
+			await new Promise<void>((resolve) => {
+				tsxProcess.stdout!.on('data', (data: Buffer) => {
+					const chunkString = data.toString();
+
+					if (chunkString.includes('SUCCESS')) {
+						return resolve();
+					}
+
+					if (chunkString.includes('> ') && commands.length > 0) {
+						const command = commands.shift();
+						tsxProcess.stdin?.write(`${command}\n`);
+					}
+				});
+			});
+
+			tsxProcess.kill();
+		}, 5000);
+	});
+});