test: improve check in test-os

The check for `os.networkInterfaces()` in `test-os.js` may be too strict. It's apparently possible for a machine to be configured with multiple IPv4 loopback interfaces. Increase specificity of filter to check on only the object we expect. PR-URL: nodejs#14655 Fixes: nodejs#14654 Reviewed-By: Luigi Pinca <[email protected]> Reviewed-By: Tobias Nießen <[email protected]> Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: Refael Ackermann <[email protected]> Reviewed-By: James M Snell <[email protected]>
Trott · Aug 10, 2017 · 2923ed1 · 2923ed1
1 parent 7ec28a0
commit 2923ed1
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/test/parallel/test-os.js b/test/parallel/test-os.js
@@ -116,7 +116,8 @@ const interfaces = os.networkInterfaces();
 switch (platform) {
   case 'linux':
   {
-    const filter = (e) => e.address === '127.0.0.1';
+    const filter =
+      (e) => e.address === '127.0.0.1' && e.netmask === '255.0.0.0';
     const actual = interfaces.lo.filter(filter);
     const expected = [{ address: '127.0.0.1', netmask: '255.0.0.0',
                         mac: '00:00:00:00:00:00', family: 'IPv4',