test: preserve env in test cases

Allows env vars to be passed through to child processes. This is needed
for things like NODE_TEST_DIR or LD_LIBRARY_PATH if testing the shared
library.

PR-URL: https://github.com/nodejs/node/pull/14822
Refs: https://github.com/nodejs/node/pull/13390
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: James M Snell <jasnell@gmail.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/test/parallel/test-tls-env-extra-ca.js b/test/parallel/test-tls-env-extra-ca.js
index f55167c53c..80d9cc9ec3 100644
--- a/test/parallel/test-tls-env-extra-ca.js
+++ b/test/parallel/test-tls-env-extra-ca.js
@@ -32,11 +32,11 @@ const server = tls.createServer(options, common.mustCall(function(s) {
   s.end('bye');
   server.close();
 })).listen(0, common.mustCall(function() {
-  const env = {
+  const env = Object.assign({}, process.env, {
     CHILD: 'yes',
     PORT: this.address().port,
     NODE_EXTRA_CA_CERTS: fixtures.path('keys', 'ca1-cert.pem')
-  };
+  });
 
   fork(__filename, { env: env }).on('exit', common.mustCall(function(status) {
     assert.strictEqual(status, 0, 'client did not succeed in connecting');