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0f96dc266f
PR-URL: https://github.com/nodejs/node/pull/31032 Reviewed-By: Jan Krems <jan.krems@gmail.com> Reviewed-By: Myles Borins <myles.borins@gmail.com>
67 lines
2.2 KiB
JavaScript
67 lines
2.2 KiB
JavaScript
'use strict';
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const common = require('../common');
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const assert = require('assert');
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const { URL } = require('url');
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const relativePath = '../fixtures/es-modules/test-esm-ok.mjs';
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const absolutePath = require.resolve('../fixtures/es-modules/test-esm-ok.mjs');
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const targetURL = new URL('file:///');
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targetURL.pathname = absolutePath;
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function expectErrorProperty(result, propertyKey, value) {
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Promise.resolve(result)
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.catch(common.mustCall((error) => {
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assert.strictEqual(error[propertyKey], value);
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}));
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}
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function expectModuleError(result, err) {
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expectErrorProperty(result, 'code', err);
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}
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function expectOkNamespace(result) {
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Promise.resolve(result)
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.then(common.mustCall((ns) => {
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const expected = { default: true };
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Object.defineProperty(expected, Symbol.toStringTag, {
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value: 'Module'
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});
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Object.setPrototypeOf(expected, Object.getPrototypeOf(ns));
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assert.deepStrictEqual(ns, expected);
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}));
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}
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function expectFsNamespace(result) {
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Promise.resolve(result)
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.then(common.mustCall((ns) => {
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assert.strictEqual(typeof ns.default.writeFile, 'function');
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assert.strictEqual(typeof ns.writeFile, 'function');
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}));
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}
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// For direct use of import expressions inside of CJS or ES modules, including
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// via eval, all kinds of specifiers should work without issue.
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(function testScriptOrModuleImport() {
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common.expectWarning('ExperimentalWarning',
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'The ESM module loader is experimental.');
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// Importing another file, both direct & via eval
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// expectOkNamespace(import(relativePath));
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expectOkNamespace(eval(`import("${relativePath}")`));
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expectOkNamespace(eval(`import("${relativePath}")`));
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expectOkNamespace(eval(`import("${targetURL}")`));
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// Importing a built-in, both direct & via eval
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expectFsNamespace(import('fs'));
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expectFsNamespace(eval('import("fs")'));
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expectFsNamespace(eval('import("fs")'));
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expectFsNamespace(import('nodejs:fs'));
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expectModuleError(import('nodejs:unknown'),
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'ERR_UNKNOWN_BUILTIN_MODULE');
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expectModuleError(import('./not-an-existing-module.mjs'),
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'ERR_MODULE_NOT_FOUND');
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expectModuleError(import('http://example.com/foo.js'),
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'ERR_UNSUPPORTED_ESM_URL_SCHEME');
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})();
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