Diffusion Ant (mir/inline-method) Code

ant/tests/test_fs_readfile_url.mjs
3fa05edd2fe3mir/inline-method

test_fs_readfile_url.mjs
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			import * as fs from 'node:fs';
			import * as fsp from 'node:fs/promises';
			import path from 'node:path';

			function assert(condition, message) {
			if (!condition) throw new Error(message);
			}

			async function readFileCallback(url, encoding) {
			return await new Promise((resolve, reject) => {
			fs.readFile(url, encoding, (error, data) => {
			if (error) reject(error);
			else resolve(data);
			});
			});
			}

			async function main() {
			const dirPath = path.join(import.meta.dirname, '.fs url tmp');
			const filePath = path.join(dirPath, 'url file.txt');
			const content = 'hello from file URL reads';

			fs.rmSync(dirPath, { recursive: true, force: true });
			fs.mkdirSync(dirPath, { recursive: true });
			fs.writeFileSync(filePath, content);
			const fileUrl = new URL(`file://${encodeURI(filePath)}`);

			try {
			const syncContent = fs.readFileSync(fileUrl, 'utf8');
			assert(syncContent === content, `expected sync read to match, got ${JSON.stringify(syncContent)}`);

			const callbackContent = await readFileCallback(fileUrl, 'utf8');
			assert(callbackContent === content, `expected callback read to match, got ${JSON.stringify(callbackContent)}`);

			const promiseContent = await fsp.readFile(fileUrl, 'utf8');
			assert(promiseContent === content, `expected promise read to match, got ${JSON.stringify(promiseContent)}`);

			console.log('fs readFile accepts file URLs');
			} finally {
			fs.rmSync(dirPath, { recursive: true, force: true });
			}
			}

			await main();

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