| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.net; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.fail; |
| |
| import android.net.LocalServerSocket; |
| import android.net.LocalSocket; |
| import android.net.LocalSocketAddress; |
| import android.net.Network; |
| |
| import androidx.test.filters.SmallTest; |
| import androidx.test.runner.AndroidJUnit4; |
| |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| import java.io.File; |
| import java.io.FileDescriptor; |
| import java.io.FileInputStream; |
| import java.net.DatagramSocket; |
| import java.net.Inet6Address; |
| import java.net.InetAddress; |
| import java.net.SocketException; |
| import java.util.Objects; |
| |
| @RunWith(AndroidJUnit4.class) |
| @SmallTest |
| public class NetworkTest { |
| final Network mNetwork = new Network(99); |
| |
| @Test |
| public void testBindSocketOfInvalidFdThrows() throws Exception { |
| |
| final FileDescriptor fd = new FileDescriptor(); |
| assertFalse(fd.valid()); |
| |
| try { |
| mNetwork.bindSocket(fd); |
| fail("SocketException not thrown"); |
| } catch (SocketException expected) {} |
| } |
| |
| @Test |
| public void testBindSocketOfNonSocketFdThrows() throws Exception { |
| final File devNull = new File("/dev/null"); |
| assertTrue(devNull.canRead()); |
| |
| final FileInputStream fis = new FileInputStream(devNull); |
| assertTrue(null != fis.getFD()); |
| assertTrue(fis.getFD().valid()); |
| |
| try { |
| mNetwork.bindSocket(fis.getFD()); |
| fail("SocketException not thrown"); |
| } catch (SocketException expected) {} |
| } |
| |
| @Test |
| public void testBindSocketOfConnectedDatagramSocketThrows() throws Exception { |
| final DatagramSocket mDgramSocket = new DatagramSocket(0, (InetAddress) Inet6Address.ANY); |
| mDgramSocket.connect((InetAddress) Inet6Address.LOOPBACK, 53); |
| assertTrue(mDgramSocket.isConnected()); |
| |
| try { |
| mNetwork.bindSocket(mDgramSocket); |
| fail("SocketException not thrown"); |
| } catch (SocketException expected) {} |
| } |
| |
| @Test |
| public void testBindSocketOfLocalSocketThrows() throws Exception { |
| final LocalSocket mLocalClient = new LocalSocket(); |
| mLocalClient.bind(new LocalSocketAddress("testClient")); |
| assertTrue(mLocalClient.getFileDescriptor().valid()); |
| |
| try { |
| mNetwork.bindSocket(mLocalClient.getFileDescriptor()); |
| fail("SocketException not thrown"); |
| } catch (SocketException expected) {} |
| |
| final LocalServerSocket mLocalServer = new LocalServerSocket("testServer"); |
| mLocalClient.connect(mLocalServer.getLocalSocketAddress()); |
| assertTrue(mLocalClient.isConnected()); |
| |
| try { |
| mNetwork.bindSocket(mLocalClient.getFileDescriptor()); |
| fail("SocketException not thrown"); |
| } catch (SocketException expected) {} |
| } |
| |
| @Test |
| public void testZeroIsObviousForDebugging() { |
| Network zero = new Network(0); |
| assertEquals(0, zero.hashCode()); |
| assertEquals(0, zero.getNetworkHandle()); |
| assertEquals("0", zero.toString()); |
| } |
| |
| @Test |
| public void testGetNetworkHandle() { |
| Network one = new Network(1); |
| Network two = new Network(2); |
| Network three = new Network(3); |
| |
| // None of the hashcodes are zero. |
| assertNotEqual(0, one.hashCode()); |
| assertNotEqual(0, two.hashCode()); |
| assertNotEqual(0, three.hashCode()); |
| |
| // All the hashcodes are distinct. |
| assertNotEqual(one.hashCode(), two.hashCode()); |
| assertNotEqual(one.hashCode(), three.hashCode()); |
| assertNotEqual(two.hashCode(), three.hashCode()); |
| |
| // None of the handles are zero. |
| assertNotEqual(0, one.getNetworkHandle()); |
| assertNotEqual(0, two.getNetworkHandle()); |
| assertNotEqual(0, three.getNetworkHandle()); |
| |
| // All the handles are distinct. |
| assertNotEqual(one.getNetworkHandle(), two.getNetworkHandle()); |
| assertNotEqual(one.getNetworkHandle(), three.getNetworkHandle()); |
| assertNotEqual(two.getNetworkHandle(), three.getNetworkHandle()); |
| |
| // The handles are not equal to the hashcodes. |
| assertNotEqual(one.hashCode(), one.getNetworkHandle()); |
| assertNotEqual(two.hashCode(), two.getNetworkHandle()); |
| assertNotEqual(three.hashCode(), three.getNetworkHandle()); |
| |
| // Adjust as necessary to test an implementation's specific constants. |
| // When running with runtest, "adb logcat -s TestRunner" can be useful. |
| assertEquals(7700664333L, one.getNetworkHandle()); |
| assertEquals(11995631629L, two.getNetworkHandle()); |
| assertEquals(16290598925L, three.getNetworkHandle()); |
| } |
| |
| private static <T> void assertNotEqual(T t1, T t2) { |
| assertFalse(Objects.equals(t1, t2)); |
| } |
| } |