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'use strict';
// Flags: --expose-internals
// This verifies that
// 1. We do not leak internal modules unless the --require-internals option
// is on.
// 2. We do not accidentally leak any modules to the public global scope.
// 3. Deprecated modules are properly deprecated.
const common = require('../common');
if (!common.isMainThread) {
common.skip('Cannot test the existence of --expose-internals from worker');
}
const assert = require('assert');
const fork = require('child_process').fork;
const expectedPublicModules = new Set([
'_http_agent',
'_http_client',
'_http_common',
'_http_incoming',
'_http_outgoing',
'_http_server',
'_stream_duplex',
'_stream_passthrough',
'_stream_readable',
'_stream_transform',
'_stream_wrap',
'_stream_writable',
'_tls_common',
'_tls_wrap',
'assert',
'async_hooks',
'buffer',
'child_process',
'cluster',
'console',
'constants',
'crypto',
'dgram',
'dns',
'domain',
'events',
'fs',
'http',
'http2',
'https',
'inspector',
'module',
'net',
'os',
'path',
'perf_hooks',
'process',
'punycode',
'querystring',
'readline',
'repl',
'stream',
'string_decoder',
'sys',
'timers',
'tls',
'trace_events',
'tty',
'url',
'util',
'v8',
'vm',
'worker_threads',
'zlib'
]);
if (process.argv[2] === 'child') {
assert(!process.execArgv.includes('--expose-internals'));
process.once('message', ({ allBuiltins }) => {
const publicModules = new Set();
for (const id of allBuiltins) {
if (id.startsWith('internal/')) {
common.expectsError(() => {
require(id);
}, {
code: 'MODULE_NOT_FOUND',
message: `Cannot find module '${id}'`
});
} else {
require(id);
publicModules.add(id);
}
}
assert(allBuiltins.length > publicModules.size);
// Make sure all the public modules are available through
// require('module').builtinModules
assert.deepStrictEqual(
publicModules,
new Set(require('module').builtinModules)
);
assert.deepStrictEqual(publicModules, expectedPublicModules);
});
} else {
assert(process.execArgv.includes('--expose-internals'));
const child = fork(__filename, ['child'], {
execArgv: []
});
const { builtinModules } = require('module');
// When --expose-internals is on, require('module').builtinModules
// contains internal modules.
const message = { allBuiltins: builtinModules };
child.send(message);
}