module: add builtinModules

Provides list of all builtin modules in Node.

Includes modules of all types:
- prefixed (ex: _tls_common)
- deprecated (ex: sys)
- regular (ex: vm)

PR-URL: https://github.com/nodejs/node/pull/16386
Refs: https://github.com/nodejs/node/issues/3307
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/test/parallel/test-module-builtin.js b/test/parallel/test-module-builtin.js
new file mode 100644
index 0000000000..3897d71ecf
--- /dev/null
+++ b/test/parallel/test-module-builtin.js
@@ -0,0 +1,14 @@
+'use strict';
+require('../common');
+const assert = require('assert');
+const { builtinModules } = require('module');
+
+// Includes modules in lib/ (even deprecated ones)
+assert(builtinModules.includes('http'));
+assert(builtinModules.includes('sys'));
+
+// Does not include internal modules
+assert.deepStrictEqual(
+  builtinModules.filter((mod) => mod.startsWith('internal/')),
+  []
+);