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test: improve check in test-os
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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: #14655
Fixes: #14654
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
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Trott authored and addaleax committed Aug 10, 2017
1 parent 55aba6a commit 30837b3
Showing 1 changed file with 2 additions and 1 deletion.
3 changes: 2 additions & 1 deletion test/parallel/test-os.js
Original file line number Diff line number Diff line change
Expand Up @@ -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',
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