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8022344: Additional debug info for test/java/net/NetworkInterface/IndexTest.java

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Reviewed-by: michaelm, alanb
This commit is contained in:
Chris Hegarty 2013-08-06 15:35:20 +01:00
parent b65847a206
commit 04449cd1a9
1 changed files with 30 additions and 0 deletions
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30
jdk/test/java/net/NetworkInterface/IndexTest.java
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@ -27,7 +27,10 @@
*/
import java.net.*;
import java.util.Arrays;
import java.util.Collections;
import java.util.Enumeration;
import static java.lang.System.out;
public class IndexTest {
public static void main(String[] args) throws Exception {
@ -39,12 +42,17 @@ public class IndexTest {
if (index >= 0) {
NetworkInterface nif2 = NetworkInterface.getByIndex(index);
if (! nif.equals(nif2)) {
out.printf("%nExpected interfaces to be the same, but got:%n");
displayInterfaceInformation(nif);
displayInterfaceInformation(nif2);
throw new RuntimeException("both interfaces should be equal");
}
}
}
try {
nif = NetworkInterface.getByIndex(-1);
out.printf("%ngetByIndex(-1) should have thrown, but instead returned:%n");
displayInterfaceInformation(nif);
throw new RuntimeException("Should have thrown IllegalArgumentException");
} catch (IllegalArgumentException e) {
// OK
@ -52,7 +60,29 @@ public class IndexTest {
// In all likelyhood, this interface should not exist.
nif = NetworkInterface.getByIndex(Integer.MAX_VALUE - 1);
if (nif != null) {
out.printf("%ngetByIndex(MAX_VALUE - 1), expected null, got:%n");
displayInterfaceInformation(nif);
throw new RuntimeException("getByIndex() should have returned null");
}
}
static void displayInterfaceInformation(NetworkInterface netint) throws SocketException {
out.printf("Display name: %s%n", netint.getDisplayName());
out.printf("Name: %s%n", netint.getName());
Enumeration<InetAddress> inetAddresses = netint.getInetAddresses();
for (InetAddress inetAddress : Collections.list(inetAddresses))
out.printf("InetAddress: %s%n", inetAddress);
out.printf("Up? %s%n", netint.isUp());
out.printf("Loopback? %s%n", netint.isLoopback());
out.printf("PointToPoint? %s%n", netint.isPointToPoint());
out.printf("Supports multicast? %s%n", netint.supportsMulticast());
out.printf("Virtual? %s%n", netint.isVirtual());
out.printf("Hardware address: %s%n",
Arrays.toString(netint.getHardwareAddress()));
out.printf("MTU: %s%n", netint.getMTU());
out.printf("Index: %s%n", netint.getIndex());
out.printf("%n");
}
}