node/test/es-module/test-esm-loader-modulemap.js

119 lines
4.3 KiB
JavaScript

'use strict';
// Flags: --expose-internals
require('../common');
const { strictEqual, throws } = require('assert');
const { createModuleLoader } = require('internal/modules/esm/loader');
const { LoadCache, ResolveCache } = require('internal/modules/esm/module_map');
const { ModuleJob } = require('internal/modules/esm/module_job');
const createDynamicModule = require(
'internal/modules/esm/create_dynamic_module');
const jsModuleDataUrl = 'data:text/javascript,export{}';
const jsonModuleDataUrl = 'data:application/json,""';
const stubJsModule = createDynamicModule([], ['default'], jsModuleDataUrl);
const stubJsonModule = createDynamicModule([], ['default'], jsonModuleDataUrl);
const loader = createModuleLoader(false);
const jsModuleJob = new ModuleJob(loader, stubJsModule.module, undefined,
() => new Promise(() => {}));
const jsonModuleJob = new ModuleJob(loader, stubJsonModule.module,
{ type: 'json' },
() => new Promise(() => {}));
// LoadCache.set and LoadCache.get store and retrieve module jobs for a
// specified url/type tuple; LoadCache.has correctly reports whether such jobs
// are stored in the map.
{
const moduleMap = new LoadCache();
moduleMap.set(jsModuleDataUrl, undefined, jsModuleJob);
moduleMap.set(jsonModuleDataUrl, 'json', jsonModuleJob);
strictEqual(moduleMap.get(jsModuleDataUrl), jsModuleJob);
strictEqual(moduleMap.get(jsonModuleDataUrl, 'json'), jsonModuleJob);
strictEqual(moduleMap.has(jsModuleDataUrl), true);
strictEqual(moduleMap.has(jsModuleDataUrl, 'javascript'), true);
strictEqual(moduleMap.has(jsonModuleDataUrl, 'json'), true);
strictEqual(moduleMap.has('unknown'), false);
// The types must match
strictEqual(moduleMap.has(jsModuleDataUrl, 'json'), false);
strictEqual(moduleMap.has(jsonModuleDataUrl, 'javascript'), false);
strictEqual(moduleMap.has(jsonModuleDataUrl), false);
strictEqual(moduleMap.has(jsModuleDataUrl, 'unknown'), false);
strictEqual(moduleMap.has(jsonModuleDataUrl, 'unknown'), false);
}
// LoadCache.get, LoadCache.has and LoadCache.set should only accept string
// values as url argument.
{
const moduleMap = new LoadCache();
const errorObj = {
code: 'ERR_INVALID_ARG_TYPE',
name: 'TypeError',
message: /^The "url" argument must be of type string/
};
[{}, [], true, 1].forEach((value) => {
throws(() => moduleMap.get(value), errorObj);
throws(() => moduleMap.has(value), errorObj);
throws(() => moduleMap.set(value, undefined, jsModuleJob), errorObj);
});
}
// LoadCache.get, LoadCache.has and LoadCache.set should only accept string
// values (or the kAssertType symbol) as type argument.
{
const moduleMap = new LoadCache();
const errorObj = {
code: 'ERR_INVALID_ARG_TYPE',
name: 'TypeError',
message: /^The "type" argument must be of type string/
};
[{}, [], true, 1].forEach((value) => {
throws(() => moduleMap.get(jsModuleDataUrl, value), errorObj);
throws(() => moduleMap.has(jsModuleDataUrl, value), errorObj);
throws(() => moduleMap.set(jsModuleDataUrl, value, jsModuleJob), errorObj);
});
}
// LoadCache.set should only accept ModuleJob values as job argument.
{
const moduleMap = new LoadCache();
[{}, [], true, 1].forEach((value) => {
throws(() => moduleMap.set('', undefined, value), {
code: 'ERR_INVALID_ARG_TYPE',
name: 'TypeError',
message: /^The "job" argument must be an instance of ModuleJob/
});
});
}
{
const resolveMap = new ResolveCache();
strictEqual(resolveMap.serializeKey('./file', { __proto__: null }), './file::');
strictEqual(resolveMap.serializeKey('./file', { __proto__: null, type: 'json' }), './file::"type""json"');
strictEqual(resolveMap.serializeKey('./file::"type""json"', { __proto__: null }), './file::"type""json"::');
strictEqual(resolveMap.serializeKey('./file', { __proto__: null, c: 'd', a: 'b' }), './file::"a""b","c""d"');
strictEqual(resolveMap.serializeKey('./s', { __proto__: null, c: 'd', a: 'b', b: 'c' }), './s::"a""b","b""c","c""d"');
resolveMap.set('key1', 'parent1', 1);
resolveMap.set('key2', 'parent1', 2);
resolveMap.set('key2', 'parent2', 3);
strictEqual(resolveMap.get('key1', 'parent1'), 1);
strictEqual(resolveMap.get('key2', 'parent1'), 2);
strictEqual(resolveMap.get('key2', 'parent2'), 3);
}