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5e7946fe79
- Removes redundant `instantiate` method - Refactors `link` to match the spec linking steps more accurately - Removes URL validation from SourceTextModule specifiers - DRYs some dynamic import logic Closes: https://github.com/nodejs/node/issues/29030 Co-Authored-By: Michaël Zasso <targos@protonmail.com> PR-URL: https://github.com/nodejs/node/pull/29776 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Minwoo Jung <minwoo@nodesource.com>
96 lines
2.6 KiB
JavaScript
96 lines
2.6 KiB
JavaScript
'use strict';
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// Flags: --experimental-vm-modules
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const common = require('../common');
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const assert = require('assert');
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const { SourceTextModule, createContext } = require('vm');
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const util = require('util');
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(async function test1() {
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const context = createContext({
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foo: 'bar',
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baz: undefined,
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typeofProcess: undefined,
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});
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const m = new SourceTextModule(
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'baz = foo; typeofProcess = typeof process; typeof Object;',
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{ context }
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);
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assert.strictEqual(m.status, 'unlinked');
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await m.link(common.mustNotCall());
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assert.strictEqual(m.status, 'linked');
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const result = await m.evaluate();
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assert.strictEqual(m.status, 'evaluated');
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assert.strictEqual(Object.getPrototypeOf(result), null);
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assert.deepStrictEqual(context, {
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foo: 'bar',
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baz: 'bar',
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typeofProcess: 'undefined'
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});
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assert.strictEqual(result.result, 'function');
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}());
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(async () => {
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const m = new SourceTextModule(
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'global.vmResult = "foo"; Object.prototype.toString.call(process);'
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);
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await m.link(common.mustNotCall());
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const { result } = await m.evaluate();
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assert.strictEqual(global.vmResult, 'foo');
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assert.strictEqual(result, '[object process]');
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delete global.vmResult;
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})();
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(async () => {
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const m = new SourceTextModule('while (true) {}');
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await m.link(common.mustNotCall());
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await m.evaluate({ timeout: 500 })
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.then(() => assert(false), () => {});
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})();
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// Check the generated identifier for each module
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(async () => {
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const context1 = createContext({ });
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const context2 = createContext({ });
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const m1 = new SourceTextModule('1', { context: context1 });
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assert.strictEqual(m1.identifier, 'vm:module(0)');
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const m2 = new SourceTextModule('2', { context: context1 });
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assert.strictEqual(m2.identifier, 'vm:module(1)');
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const m3 = new SourceTextModule('3', { context: context2 });
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assert.strictEqual(m3.identifier, 'vm:module(0)');
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})();
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// Check inspection of the instance
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{
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const context = createContext({ foo: 'bar' });
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const m = new SourceTextModule('1', { context });
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assert.strictEqual(
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util.inspect(m),
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`SourceTextModule {
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status: 'unlinked',
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identifier: 'vm:module(0)',
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context: { foo: 'bar' }
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}`
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);
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assert.strictEqual(
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m[util.inspect.custom].call(Object.create(null)),
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`SourceTextModule {
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status: undefined,
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identifier: undefined,
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context: undefined
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}`,
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);
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assert.strictEqual(util.inspect(m, { depth: -1 }), '[SourceTextModule]');
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}
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// Check dependencies getter returns same object every time
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{
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const m = new SourceTextModule('');
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const dep = m.dependencySpecifiers;
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assert.notStrictEqual(dep, undefined);
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assert.strictEqual(dep, m.dependencySpecifiers);
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}
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