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Unit tests for ConnectionRecogniserImpl.

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akwizgran
2011-08-12 12:26:47 +02:00
parent a789f49a39
commit e896b2d86d
2 changed files with 99 additions and 0 deletions
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1
test/build.xml
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@@ -32,6 +32,7 @@
<test name='net.sf.briar.serial.ReaderImplTest'/> <test name='net.sf.briar.serial.ReaderImplTest'/>
<test name='net.sf.briar.serial.WriterImplTest'/> <test name='net.sf.briar.serial.WriterImplTest'/>
<test name='net.sf.briar.setup.SetupWorkerTest'/> <test name='net.sf.briar.setup.SetupWorkerTest'/>
<test name='net.sf.briar.transport.ConnectionRecogniserImplTest'/>
<test name='net.sf.briar.transport.ConnectionWindowImplTest'/> <test name='net.sf.briar.transport.ConnectionWindowImplTest'/>
<test name='net.sf.briar.transport.PacketEncrypterImplTest'/> <test name='net.sf.briar.transport.PacketEncrypterImplTest'/>
<test name='net.sf.briar.transport.PacketWriterImplTest'/> <test name='net.sf.briar.transport.PacketWriterImplTest'/>

98
test/net/sf/briar/transport/ConnectionRecogniserImplTest.java Normal file
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@@ -0,0 +1,98 @@
package net.sf.briar.transport;
import java.util.Collection;
import java.util.Collections;
import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import junit.framework.TestCase;
import net.sf.briar.api.ContactId;
import net.sf.briar.api.crypto.CryptoComponent;
import net.sf.briar.api.db.DatabaseComponent;
import net.sf.briar.api.transport.ConnectionWindow;
import net.sf.briar.crypto.CryptoModule;
import org.jmock.Expectations;
import org.jmock.Mockery;
import org.junit.Test;
import com.google.inject.Guice;
import com.google.inject.Injector;
public class ConnectionRecogniserImplTest extends TestCase {
private final CryptoComponent crypto;
private final ContactId contactId;
private final byte[] secret;
private final int transportId;
private final ConnectionWindow connectionWindow;
public ConnectionRecogniserImplTest() {
super();
Injector i = Guice.createInjector(new CryptoModule());
crypto = i.getInstance(CryptoComponent.class);
contactId = new ContactId(1);
secret = new byte[18];
transportId = 123;
connectionWindow = new ConnectionWindowImpl(0L, 0);
}
@Test
public void testUnexpectedTag() throws Exception {
Mockery context = new Mockery();
final DatabaseComponent db = context.mock(DatabaseComponent.class);
context.checking(new Expectations() {{
oneOf(db).addListener(with(any(ConnectionRecogniserImpl.class)));
oneOf(db).getContacts();
will(returnValue(Collections.singleton(contactId)));
oneOf(db).getSharedSecret(contactId);
will(returnValue(secret));
oneOf(db).getConnectionWindow(contactId, transportId);
will(returnValue(connectionWindow));
}});
final ConnectionRecogniserImpl c =
new ConnectionRecogniserImpl(transportId, crypto, db);
assertNull(c.acceptConnection(new byte[16]));
context.assertIsSatisfied();
}
@Test
public void testExpectedTag() throws Exception {
// Calculate the expected tag for connection number 3
SecretKey tagKey = crypto.deriveTagKey(secret);
Cipher tagCipher = crypto.getTagCipher();
tagCipher.init(Cipher.ENCRYPT_MODE, tagKey);
byte[] tag = TagEncoder.encodeTag(transportId, 3L, 0);
byte[] encryptedTag = tagCipher.doFinal(tag);
Mockery context = new Mockery();
final DatabaseComponent db = context.mock(DatabaseComponent.class);
context.checking(new Expectations() {{
oneOf(db).addListener(with(any(ConnectionRecogniserImpl.class)));
oneOf(db).getContacts();
will(returnValue(Collections.singleton(contactId)));
oneOf(db).getSharedSecret(contactId);
will(returnValue(secret));
oneOf(db).getConnectionWindow(contactId, transportId);
will(returnValue(connectionWindow));
oneOf(db).setConnectionWindow(contactId, transportId,
connectionWindow);
}});
final ConnectionRecogniserImpl c =
new ConnectionRecogniserImpl(transportId, crypto, db);
// First time - the tag should be expected
assertEquals(contactId, c.acceptConnection(encryptedTag));
// Second time - the tag should no longer be expected
assertNull(c.acceptConnection(encryptedTag));
// The window should have advanced
assertEquals(4L, connectionWindow.getCentre());
Collection<Long> unseen = connectionWindow.getUnseenConnectionNumbers();
assertEquals(19, unseen.size());
for(int i = 0; i < 19; i++) {
if(i == 3) continue;
assertTrue(unseen.contains(Long.valueOf(i)));
}
context.assertIsSatisfied();
}
}