From 410ce2164ece66a6b8467e0c0bf541c095c6ac50 Mon Sep 17 00:00:00 2001
From: Leko <leko.noor@gmail.com>
Date: Mon, 18 Dec 2017 15:44:00 +0900
Subject: [PATCH] test: increase diffie-hellman test coverage

PR-URL: https://github.com/nodejs/node/pull/17728
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Jon Moss <me@jonathanmoss.me>
---
 test/parallel/test-crypto-dh.js | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/test/parallel/test-crypto-dh.js b/test/parallel/test-crypto-dh.js
index d55540dd88035c..bb3f0044f8d812 100644
--- a/test/parallel/test-crypto-dh.js
+++ b/test/parallel/test-crypto-dh.js
@@ -22,6 +22,28 @@ assert.strictEqual(secret2.toString('base64'), secret1);
 assert.strictEqual(dh1.verifyError, 0);
 assert.strictEqual(dh2.verifyError, 0);
 
+{
+  const DiffieHellman = crypto.DiffieHellman;
+  const dh = DiffieHellman(p1, 'buffer');
+  assert(dh instanceof DiffieHellman, 'DiffieHellman is expected to return a ' +
+                                      'new instance when called without `new`');
+}
+
+{
+  const DiffieHellmanGroup = crypto.DiffieHellmanGroup;
+  const dhg = DiffieHellmanGroup('modp5');
+  assert(dhg instanceof DiffieHellmanGroup, 'DiffieHellmanGroup is expected ' +
+                                            'to return a new instance when ' +
+                                            'called without `new`');
+}
+
+{
+  const ECDH = crypto.ECDH;
+  const ecdh = ECDH('prime256v1');
+  assert(ecdh instanceof ECDH, 'ECDH is expected to return a new instance ' +
+                               'when called without `new`');
+}
+
 [
   [0x1, 0x2],
   () => { },