Add more tests in LinkPropertiesTests.java

Test getAllInterfaceNames(), hasIpv4DefaultRoute(),
hasIpv4DnsServer() and hasIpv6DnsServer().

Bug: 139268426
Bug: 135998869
Bug: 138306002
Test: atest CtsNetTestCasesLatestSdk:android.net.LinkPropertiesTest
Change-Id: Ie77dd7eb5c7ecc763c661e8510f9a308e695e77f
1 file changed
tree: 800c408b97aa783ca4608807e407a1bf338210d1
  1. core/
  2. services/
  3. tests/