e2e5b2eaf1PR-URL: https://github.com/nodejs/node/pull/44701 Reviewed-By: Geoffrey Booth <webadmin@geoffreybooth.com> Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
83 lines
2.3 KiB
JavaScript
83 lines
2.3 KiB
JavaScript
// Flags: --expose-internals
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import { mustCall } from '../common/index.mjs';
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import esmLoaderModule from 'internal/modules/esm/loader';
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import assert from 'assert';
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const { ESMLoader } = esmLoaderModule;
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/**
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* Verify custom hooks are called with appropriate arguments.
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*/
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{
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const esmLoader = new ESMLoader();
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const originalSpecifier = 'foo/bar';
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const importAssertions = {
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__proto__: null,
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type: 'json',
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};
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const parentURL = 'file:///entrypoint.js';
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const resolvedURL = 'file:///foo/bar.js';
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const suggestedFormat = 'test';
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function resolve(specifier, context, defaultResolve) {
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assert.strictEqual(specifier, originalSpecifier);
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// Ensure `context` has all and only the properties it's supposed to
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assert.deepStrictEqual(Object.keys(context), [
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'conditions',
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'importAssertions',
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'parentURL',
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]);
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assert.ok(Array.isArray(context.conditions));
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assert.deepStrictEqual(context.importAssertions, importAssertions);
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assert.strictEqual(context.parentURL, parentURL);
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assert.strictEqual(typeof defaultResolve, 'function');
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return {
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format: suggestedFormat,
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shortCircuit: true,
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url: resolvedURL,
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};
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}
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function load(resolvedURL, context, defaultLoad) {
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assert.strictEqual(resolvedURL, resolvedURL);
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assert.ok(new URL(resolvedURL));
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// Ensure `context` has all and only the properties it's supposed to
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assert.deepStrictEqual(Object.keys(context), [
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'format',
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'importAssertions',
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]);
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assert.strictEqual(context.format, suggestedFormat);
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assert.deepStrictEqual(context.importAssertions, importAssertions);
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assert.strictEqual(typeof defaultLoad, 'function');
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// This doesn't matter (just to avoid errors)
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return {
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format: 'module',
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shortCircuit: true,
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source: '',
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};
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}
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const customLoader = [
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{
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exports: {
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// Ensure ESMLoader actually calls the custom hooks
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resolve: mustCall(resolve),
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load: mustCall(load),
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},
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url: import.meta.url,
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},
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];
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esmLoader.addCustomLoaders(customLoader);
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// Manually trigger hooks (since ESMLoader is not actually running)
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const job = await esmLoader.getModuleJob(
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originalSpecifier,
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parentURL,
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importAssertions,
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);
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await job.modulePromise;
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}
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