tree 47114134f66f43ff1f2652a354663572cd864085
parent f15137fb9fdc49464356b4593b3ce19247376721
author Treehugger Robot <treehugger-gerrit@google.com> 1623218773 +0000
committer Remi NGUYEN VAN <reminv@google.com> 1623233118 +0000

Fix restorePrivateDnsSetting with null hostnames

When private DNS setting was set to opportunistic (mode) and null
(hostname), CtsNetUtils would not restore it.

Make sure that private DNS settings are restored after every test. Also
fail if restore is called without having saved any setting beforehand.

Bug: 190465704
Test: atest CtsNetTestCases
Original-Change: https://android-review.googlesource.com/1729162
Merged-In: Ic5d8d8b729469e0eef89a0b53f166e604264c1ee
Change-Id: Ic5d8d8b729469e0eef89a0b53f166e604264c1ee