Merge "Add LinkProperties common test cases"

This commit is contained in:
Paul Hu
2019-05-10 05:55:11 +00:00
committed by Gerrit Code Review

View File

@@ -18,6 +18,7 @@ package android.net;
import static org.junit.Assert.assertEquals; import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse; import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotEquals;
import static org.junit.Assert.assertNull; import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue; import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail; import static org.junit.Assert.fail;
@@ -46,28 +47,80 @@ import java.util.Set;
@RunWith(AndroidJUnit4.class) @RunWith(AndroidJUnit4.class)
@SmallTest @SmallTest
public class LinkPropertiesTest { public class LinkPropertiesTest {
private static InetAddress ADDRV4 = NetworkUtils.numericToInetAddress("75.208.6.1"); private static final InetAddress ADDRV4 = InetAddresses.parseNumericAddress("75.208.6.1");
private static InetAddress ADDRV6 = NetworkUtils.numericToInetAddress( private static final InetAddress ADDRV6 = InetAddresses.parseNumericAddress(
"2001:0db8:85a3:0000:0000:8a2e:0370:7334"); "2001:0db8:85a3:0000:0000:8a2e:0370:7334");
private static InetAddress DNS1 = NetworkUtils.numericToInetAddress("75.208.7.1"); private static final InetAddress DNS1 = InetAddresses.parseNumericAddress("75.208.7.1");
private static InetAddress DNS2 = NetworkUtils.numericToInetAddress("69.78.7.1"); private static final InetAddress DNS2 = InetAddresses.parseNumericAddress("69.78.7.1");
private static InetAddress DNS6 = NetworkUtils.numericToInetAddress("2001:4860:4860::8888"); private static final InetAddress DNS6 = InetAddresses.parseNumericAddress(
private static InetAddress PCSCFV6 = NetworkUtils.numericToInetAddress( "2001:4860:4860::8888");
private static final InetAddress PRIVDNS1 = InetAddresses.parseNumericAddress("1.1.1.1");
private static final InetAddress PRIVDNS2 = InetAddresses.parseNumericAddress("1.0.0.1");
private static final InetAddress PRIVDNS6 = InetAddresses.parseNumericAddress(
"2606:4700:4700::1111");
private static final InetAddress PCSCFV4 = InetAddresses.parseNumericAddress("10.77.25.37");
private static final InetAddress PCSCFV6 = InetAddresses.parseNumericAddress(
"2001:0db8:85a3:0000:0000:8a2e:0370:1"); "2001:0db8:85a3:0000:0000:8a2e:0370:1");
private static InetAddress GATEWAY1 = NetworkUtils.numericToInetAddress("75.208.8.1"); private static final InetAddress GATEWAY1 = InetAddresses.parseNumericAddress("75.208.8.1");
private static InetAddress GATEWAY2 = NetworkUtils.numericToInetAddress("69.78.8.1"); private static final InetAddress GATEWAY2 = InetAddresses.parseNumericAddress("69.78.8.1");
private static InetAddress GATEWAY61 = NetworkUtils.numericToInetAddress("fe80::6:0000:613"); private static final InetAddress GATEWAY61 = InetAddresses.parseNumericAddress(
private static InetAddress GATEWAY62 = NetworkUtils.numericToInetAddress("fe80::6:2222"); "fe80::6:0000:613");
private static String NAME = "qmi0"; private static final InetAddress GATEWAY62 = InetAddresses.parseNumericAddress("fe80::6:2222");
private static int MTU = 1500; private static final String NAME = "qmi0";
private static final String DOMAINS = "google.com";
private static LinkAddress LINKADDRV4 = new LinkAddress(ADDRV4, 32); private static final String PRIV_DNS_SERVER_NAME = "private.dns.com";
private static LinkAddress LINKADDRV6 = new LinkAddress(ADDRV6, 128); private static final String TCP_BUFFER_SIZES = "524288,1048576,2097152,262144,524288,1048576";
private static LinkAddress LINKADDRV6LINKLOCAL = new LinkAddress("fe80::1/64"); private static final int MTU = 1500;
private static final LinkAddress LINKADDRV4 = new LinkAddress(ADDRV4, 32);
private static final LinkAddress LINKADDRV6 = new LinkAddress(ADDRV6, 128);
private static final LinkAddress LINKADDRV6LINKLOCAL = new LinkAddress("fe80::1/64");
// TODO: replace all calls to NetworkUtils.numericToInetAddress with calls to this method. // TODO: replace all calls to NetworkUtils.numericToInetAddress with calls to this method.
private InetAddress Address(String addrString) { private InetAddress Address(String addrString) {
return NetworkUtils.numericToInetAddress(addrString); return InetAddresses.parseNumericAddress(addrString);
}
private void checkEmpty(final LinkProperties lp) {
assertEquals(0, lp.getAllInterfaceNames().size());
assertEquals(0, lp.getAllAddresses().size());
assertEquals(0, lp.getDnsServers().size());
assertEquals(0, lp.getValidatedPrivateDnsServers().size());
assertEquals(0, lp.getPcscfServers().size());
assertEquals(0, lp.getAllRoutes().size());
assertEquals(0, lp.getAllLinkAddresses().size());
assertEquals(0, lp.getStackedLinks().size());
assertEquals(0, lp.getMtu());
assertNull(lp.getPrivateDnsServerName());
assertNull(lp.getDomains());
assertNull(lp.getHttpProxy());
assertNull(lp.getTcpBufferSizes());
assertNull(lp.getNat64Prefix());
assertFalse(lp.isProvisioned());
assertFalse(lp.isIpv4Provisioned());
assertFalse(lp.isIpv6Provisioned());
assertFalse(lp.isPrivateDnsActive());
}
private LinkProperties makeTestObject() {
final LinkProperties lp = new LinkProperties();
lp.setInterfaceName(NAME);
lp.addLinkAddress(LINKADDRV4);
lp.addLinkAddress(LINKADDRV6);
lp.addDnsServer(DNS1);
lp.addDnsServer(DNS2);
lp.addValidatedPrivateDnsServer(PRIVDNS1);
lp.addValidatedPrivateDnsServer(PRIVDNS2);
lp.setUsePrivateDns(true);
lp.setPrivateDnsServerName(PRIV_DNS_SERVER_NAME);
lp.addPcscfServer(PCSCFV6);
lp.setDomains(DOMAINS);
lp.addRoute(new RouteInfo(GATEWAY1));
lp.addRoute(new RouteInfo(GATEWAY2));
lp.setHttpProxy(ProxyInfo.buildDirectProxy("test", 8888));
lp.setMtu(MTU);
lp.setTcpBufferSizes(TCP_BUFFER_SIZES);
lp.setNat64Prefix(new IpPrefix("2001:db8:0:64::/96"));
return lp;
} }
public void assertLinkPropertiesEqual(LinkProperties source, LinkProperties target) { public void assertLinkPropertiesEqual(LinkProperties source, LinkProperties target) {
@@ -170,8 +223,7 @@ public class LinkPropertiesTest {
target.clear(); target.clear();
target.setInterfaceName(NAME); target.setInterfaceName(NAME);
// change link addresses // change link addresses
target.addLinkAddress(new LinkAddress( target.addLinkAddress(new LinkAddress(Address("75.208.6.2"), 32));
NetworkUtils.numericToInetAddress("75.208.6.2"), 32));
target.addLinkAddress(LINKADDRV6); target.addLinkAddress(LINKADDRV6);
target.addDnsServer(DNS1); target.addDnsServer(DNS1);
target.addDnsServer(DNS2); target.addDnsServer(DNS2);
@@ -186,7 +238,7 @@ public class LinkPropertiesTest {
target.addLinkAddress(LINKADDRV4); target.addLinkAddress(LINKADDRV4);
target.addLinkAddress(LINKADDRV6); target.addLinkAddress(LINKADDRV6);
// change dnses // change dnses
target.addDnsServer(NetworkUtils.numericToInetAddress("75.208.7.2")); target.addDnsServer(Address("75.208.7.2"));
target.addDnsServer(DNS2); target.addDnsServer(DNS2);
target.addPcscfServer(PCSCFV6); target.addPcscfServer(PCSCFV6);
target.addRoute(new RouteInfo(GATEWAY1)); target.addRoute(new RouteInfo(GATEWAY1));
@@ -198,11 +250,10 @@ public class LinkPropertiesTest {
target.setInterfaceName(NAME); target.setInterfaceName(NAME);
target.addLinkAddress(LINKADDRV4); target.addLinkAddress(LINKADDRV4);
target.addLinkAddress(LINKADDRV6); target.addLinkAddress(LINKADDRV6);
target.addDnsServer(NetworkUtils.numericToInetAddress("75.208.7.2")); target.addDnsServer(Address("75.208.7.2"));
target.addDnsServer(DNS2); target.addDnsServer(DNS2);
// change pcscf // change pcscf
target.addPcscfServer(NetworkUtils.numericToInetAddress( target.addPcscfServer(Address("2001::1"));
"2001::1"));
target.addRoute(new RouteInfo(GATEWAY1)); target.addRoute(new RouteInfo(GATEWAY1));
target.addRoute(new RouteInfo(GATEWAY2)); target.addRoute(new RouteInfo(GATEWAY2));
target.setMtu(MTU); target.setMtu(MTU);
@@ -215,7 +266,7 @@ public class LinkPropertiesTest {
target.addDnsServer(DNS1); target.addDnsServer(DNS1);
target.addDnsServer(DNS2); target.addDnsServer(DNS2);
// change gateway // change gateway
target.addRoute(new RouteInfo(NetworkUtils.numericToInetAddress("75.208.8.2"))); target.addRoute(new RouteInfo(Address("75.208.8.2")));
target.addRoute(new RouteInfo(GATEWAY2)); target.addRoute(new RouteInfo(GATEWAY2));
target.setMtu(MTU); target.setMtu(MTU);
assertFalse(source.equals(target)); assertFalse(source.equals(target));
@@ -285,10 +336,15 @@ public class LinkPropertiesTest {
} }
} }
private void assertAllRoutesNotHaveInterface(String iface, LinkProperties lp) {
for (RouteInfo r : lp.getRoutes()) {
assertNotEquals(iface, r.getInterface());
}
}
@Test @Test
public void testRouteInterfaces() { public void testRouteInterfaces() {
LinkAddress prefix = new LinkAddress( LinkAddress prefix = new LinkAddress(Address("2001:db8::"), 32);
NetworkUtils.numericToInetAddress("2001:db8::"), 32);
InetAddress address = ADDRV6; InetAddress address = ADDRV6;
// Add a route with no interface to a LinkProperties with no interface. No errors. // Add a route with no interface to a LinkProperties with no interface. No errors.
@@ -312,6 +368,8 @@ public class LinkPropertiesTest {
// Change the interface name. All the routes should change their interface name too. // Change the interface name. All the routes should change their interface name too.
lp.setInterfaceName("rmnet0"); lp.setInterfaceName("rmnet0");
assertAllRoutesHaveInterface("rmnet0", lp); assertAllRoutesHaveInterface("rmnet0", lp);
assertAllRoutesNotHaveInterface(null, lp);
assertAllRoutesNotHaveInterface("wlan0", lp);
// Now add a route with the wrong interface. This causes an exception too. // Now add a route with the wrong interface. This causes an exception too.
try { try {
@@ -325,6 +383,7 @@ public class LinkPropertiesTest {
lp.addRoute(r); lp.addRoute(r);
assertEquals(2, lp.getRoutes().size()); assertEquals(2, lp.getRoutes().size());
assertAllRoutesHaveInterface("wlan0", lp); assertAllRoutesHaveInterface("wlan0", lp);
assertAllRoutesNotHaveInterface("rmnet0", lp);
// Routes with null interfaces are converted to wlan0. // Routes with null interfaces are converted to wlan0.
r = RouteInfo.makeHostRoute(ADDRV6, null); r = RouteInfo.makeHostRoute(ADDRV6, null);
@@ -334,14 +393,23 @@ public class LinkPropertiesTest {
// Check comparisons work. // Check comparisons work.
LinkProperties lp2 = new LinkProperties(lp); LinkProperties lp2 = new LinkProperties(lp);
assertAllRoutesHaveInterface("wlan0", lp); assertAllRoutesHaveInterface("wlan0", lp2);
assertEquals(0, lp.compareAllRoutes(lp2).added.size()); assertEquals(0, lp.compareAllRoutes(lp2).added.size());
assertEquals(0, lp.compareAllRoutes(lp2).removed.size()); assertEquals(0, lp.compareAllRoutes(lp2).removed.size());
lp2.setInterfaceName("p2p0"); lp2.setInterfaceName("p2p0");
assertAllRoutesHaveInterface("p2p0", lp2); assertAllRoutesHaveInterface("p2p0", lp2);
assertAllRoutesNotHaveInterface("wlan0", lp2);
assertEquals(3, lp.compareAllRoutes(lp2).added.size()); assertEquals(3, lp.compareAllRoutes(lp2).added.size());
assertEquals(3, lp.compareAllRoutes(lp2).removed.size()); assertEquals(3, lp.compareAllRoutes(lp2).removed.size());
// Check remove works
lp.removeRoute(new RouteInfo(prefix, address, null));
assertEquals(3, lp.getRoutes().size());
lp.removeRoute(new RouteInfo(prefix, address, "wlan0"));
assertEquals(2, lp.getRoutes().size());
assertAllRoutesHaveInterface("wlan0", lp);
assertAllRoutesNotHaveInterface("p2p0", lp);
} }
@Test @Test
@@ -488,18 +556,26 @@ public class LinkPropertiesTest {
} }
@Test @Test
public void testSetLinkAddresses() { public void testLinkAddresses() {
LinkProperties lp = new LinkProperties(); final LinkProperties lp = new LinkProperties();
lp.addLinkAddress(LINKADDRV4); lp.addLinkAddress(LINKADDRV4);
lp.addLinkAddress(LINKADDRV6); lp.addLinkAddress(LINKADDRV6);
LinkProperties lp2 = new LinkProperties(); final LinkProperties lp2 = new LinkProperties();
lp2.addLinkAddress(LINKADDRV6); lp2.addLinkAddress(LINKADDRV6);
assertFalse(lp.equals(lp2)); final LinkProperties lp3 = new LinkProperties();
final List<LinkAddress> linkAddresses = Arrays.asList(LINKADDRV4);
lp3.setLinkAddresses(linkAddresses);
lp2.setLinkAddresses(lp.getLinkAddresses()); assertFalse(lp.equals(lp2));
assertTrue(lp.equals(lp)); assertFalse(lp2.equals(lp3));
lp.removeLinkAddress(LINKADDRV4);
assertTrue(lp.equals(lp2));
lp2.setLinkAddresses(lp3.getLinkAddresses());
assertTrue(lp2.equals(lp3));
} }
@Test @Test
@@ -675,9 +751,9 @@ public class LinkPropertiesTest {
assertTrue(v4lp.isReachable(DNS2)); assertTrue(v4lp.isReachable(DNS2));
final LinkProperties v6lp = new LinkProperties(); final LinkProperties v6lp = new LinkProperties();
final InetAddress kLinkLocalDns = NetworkUtils.numericToInetAddress("fe80::6:1"); final InetAddress kLinkLocalDns = Address("fe80::6:1");
final InetAddress kLinkLocalDnsWithScope = NetworkUtils.numericToInetAddress("fe80::6:2%43"); final InetAddress kLinkLocalDnsWithScope = Address("fe80::6:2%43");
final InetAddress kOnLinkDns = NetworkUtils.numericToInetAddress("2001:db8:85a3::53"); final InetAddress kOnLinkDns = Address("2001:db8:85a3::53");
assertFalse(v6lp.isReachable(kLinkLocalDns)); assertFalse(v6lp.isReachable(kLinkLocalDns));
assertFalse(v6lp.isReachable(kLinkLocalDnsWithScope)); assertFalse(v6lp.isReachable(kLinkLocalDnsWithScope));
assertFalse(v6lp.isReachable(kOnLinkDns)); assertFalse(v6lp.isReachable(kOnLinkDns));
@@ -686,8 +762,7 @@ public class LinkPropertiesTest {
// Add a link-local route, making the link-local DNS servers reachable. Because // Add a link-local route, making the link-local DNS servers reachable. Because
// we assume the presence of an IPv6 link-local address, link-local DNS servers // we assume the presence of an IPv6 link-local address, link-local DNS servers
// are considered reachable, but only those with a non-zero scope identifier. // are considered reachable, but only those with a non-zero scope identifier.
assertTrue(v6lp.addRoute(new RouteInfo( assertTrue(v6lp.addRoute(new RouteInfo(new IpPrefix(Address("fe80::"), 64))));
new IpPrefix(NetworkUtils.numericToInetAddress("fe80::"), 64))));
assertFalse(v6lp.isReachable(kLinkLocalDns)); assertFalse(v6lp.isReachable(kLinkLocalDns));
assertTrue(v6lp.isReachable(kLinkLocalDnsWithScope)); assertTrue(v6lp.isReachable(kLinkLocalDnsWithScope));
assertFalse(v6lp.isReachable(kOnLinkDns)); assertFalse(v6lp.isReachable(kOnLinkDns));
@@ -703,8 +778,7 @@ public class LinkPropertiesTest {
// Add a global route on link, but no global address yet. DNS servers reachable // Add a global route on link, but no global address yet. DNS servers reachable
// via a route that doesn't require a gateway: give them the benefit of the // via a route that doesn't require a gateway: give them the benefit of the
// doubt and hope the link-local source address suffices for communication. // doubt and hope the link-local source address suffices for communication.
assertTrue(v6lp.addRoute(new RouteInfo( assertTrue(v6lp.addRoute(new RouteInfo(new IpPrefix(Address("2001:db8:85a3::"), 64))));
new IpPrefix(NetworkUtils.numericToInetAddress("2001:db8:85a3::"), 64))));
assertFalse(v6lp.isReachable(kLinkLocalDns)); assertFalse(v6lp.isReachable(kLinkLocalDns));
assertTrue(v6lp.isReachable(kLinkLocalDnsWithScope)); assertTrue(v6lp.isReachable(kLinkLocalDnsWithScope));
assertTrue(v6lp.isReachable(kOnLinkDns)); assertTrue(v6lp.isReachable(kOnLinkDns));
@@ -766,8 +840,8 @@ public class LinkPropertiesTest {
LinkProperties rmnet1 = new LinkProperties(); LinkProperties rmnet1 = new LinkProperties();
rmnet1.setInterfaceName("rmnet1"); rmnet1.setInterfaceName("rmnet1");
rmnet1.addLinkAddress(new LinkAddress("10.0.0.3/8")); rmnet1.addLinkAddress(new LinkAddress("10.0.0.3/8"));
RouteInfo defaultRoute1 = new RouteInfo((IpPrefix) null, RouteInfo defaultRoute1 = new RouteInfo((IpPrefix) null, Address("10.0.0.1"),
NetworkUtils.numericToInetAddress("10.0.0.1"), rmnet1.getInterfaceName()); rmnet1.getInterfaceName());
RouteInfo directRoute1 = new RouteInfo(new IpPrefix("10.0.0.0/8"), null, RouteInfo directRoute1 = new RouteInfo(new IpPrefix("10.0.0.0/8"), null,
rmnet1.getInterfaceName()); rmnet1.getInterfaceName());
rmnet1.addRoute(defaultRoute1); rmnet1.addRoute(defaultRoute1);
@@ -785,8 +859,8 @@ public class LinkPropertiesTest {
rmnet2.setInterfaceName("rmnet2"); rmnet2.setInterfaceName("rmnet2");
rmnet2.addLinkAddress(new LinkAddress("fe80::cafe/64")); rmnet2.addLinkAddress(new LinkAddress("fe80::cafe/64"));
rmnet2.addLinkAddress(new LinkAddress("2001:db8::2/64")); rmnet2.addLinkAddress(new LinkAddress("2001:db8::2/64"));
RouteInfo defaultRoute2 = new RouteInfo((IpPrefix) null, RouteInfo defaultRoute2 = new RouteInfo((IpPrefix) null, Address("2001:db8::1"),
NetworkUtils.numericToInetAddress("2001:db8::1"), rmnet2.getInterfaceName()); rmnet2.getInterfaceName());
RouteInfo directRoute2 = new RouteInfo(new IpPrefix("2001:db8::/64"), null, RouteInfo directRoute2 = new RouteInfo(new IpPrefix("2001:db8::/64"), null,
rmnet2.getInterfaceName()); rmnet2.getInterfaceName());
RouteInfo linkLocalRoute2 = new RouteInfo(new IpPrefix("fe80::/64"), null, RouteInfo linkLocalRoute2 = new RouteInfo(new IpPrefix("fe80::/64"), null,
@@ -876,4 +950,111 @@ public class LinkPropertiesTest {
LinkProperties empty = new LinkProperties(); LinkProperties empty = new LinkProperties();
TestUtils.assertParcelingIsLossless(empty); TestUtils.assertParcelingIsLossless(empty);
} }
@Test
public void testConstructor() {
LinkProperties lp = new LinkProperties();
checkEmpty(lp);
assertLinkPropertiesEqual(lp, new LinkProperties(lp));
assertLinkPropertiesEqual(lp, new LinkProperties());
lp = makeTestObject();
assertLinkPropertiesEqual(lp, new LinkProperties(lp));
}
@Test
public void testDnsServers() {
final LinkProperties lp = new LinkProperties();
final List<InetAddress> dnsServers = Arrays.asList(DNS1, DNS2);
lp.setDnsServers(dnsServers);
assertEquals(2, lp.getDnsServers().size());
assertEquals(DNS1, lp.getDnsServers().get(0));
assertEquals(DNS2, lp.getDnsServers().get(1));
lp.removeDnsServer(DNS1);
assertEquals(1, lp.getDnsServers().size());
assertEquals(DNS2, lp.getDnsServers().get(0));
lp.addDnsServer(DNS6);
assertEquals(2, lp.getDnsServers().size());
assertEquals(DNS2, lp.getDnsServers().get(0));
assertEquals(DNS6, lp.getDnsServers().get(1));
}
@Test
public void testValidatedPrivateDnsServers() {
final LinkProperties lp = new LinkProperties();
final List<InetAddress> privDnsServers = Arrays.asList(PRIVDNS1, PRIVDNS2);
lp.setValidatedPrivateDnsServers(privDnsServers);
assertEquals(2, lp.getValidatedPrivateDnsServers().size());
assertEquals(PRIVDNS1, lp.getValidatedPrivateDnsServers().get(0));
assertEquals(PRIVDNS2, lp.getValidatedPrivateDnsServers().get(1));
lp.removeValidatedPrivateDnsServer(PRIVDNS1);
assertEquals(1, lp.getValidatedPrivateDnsServers().size());
assertEquals(PRIVDNS2, lp.getValidatedPrivateDnsServers().get(0));
lp.addValidatedPrivateDnsServer(PRIVDNS6);
assertEquals(2, lp.getValidatedPrivateDnsServers().size());
assertEquals(PRIVDNS2, lp.getValidatedPrivateDnsServers().get(0));
assertEquals(PRIVDNS6, lp.getValidatedPrivateDnsServers().get(1));
}
@Test
public void testPcscfServers() {
final LinkProperties lp = new LinkProperties();
final List<InetAddress> pcscfServers = Arrays.asList(PCSCFV4);
lp.setPcscfServers(pcscfServers);
assertEquals(1, lp.getPcscfServers().size());
assertEquals(PCSCFV4, lp.getPcscfServers().get(0));
lp.removePcscfServer(PCSCFV4);
assertEquals(0, lp.getPcscfServers().size());
lp.addPcscfServer(PCSCFV6);
assertEquals(1, lp.getPcscfServers().size());
assertEquals(PCSCFV6, lp.getPcscfServers().get(0));
}
@Test
public void testTcpBufferSizes() {
final LinkProperties lp = makeTestObject();
assertEquals(TCP_BUFFER_SIZES, lp.getTcpBufferSizes());
lp.setTcpBufferSizes(null);
assertNull(lp.getTcpBufferSizes());
}
@Test
public void testHasIpv6DefaultRoute() {
final LinkProperties lp = makeTestObject();
assertFalse(lp.hasIPv6DefaultRoute());
lp.addRoute(new RouteInfo(GATEWAY61));
assertTrue(lp.hasIPv6DefaultRoute());
}
@Test
public void testHttpProxy() {
final LinkProperties lp = makeTestObject();
assertTrue(lp.getHttpProxy().equals(ProxyInfo.buildDirectProxy("test", 8888)));
}
@Test
public void testPrivateDnsServerName() {
final LinkProperties lp = makeTestObject();
assertEquals(PRIV_DNS_SERVER_NAME, lp.getPrivateDnsServerName());
lp.setPrivateDnsServerName(null);
assertNull(lp.getPrivateDnsServerName());
}
@Test
public void testUsePrivateDns() {
final LinkProperties lp = makeTestObject();
assertTrue(lp.isPrivateDnsActive());
lp.clear();
assertFalse(lp.isPrivateDnsActive());
}
} }