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// Copyright Verizon Media. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.http.client.core.communication;
import com.yahoo.vespa.http.client.FeedClient;
import com.yahoo.vespa.http.client.FeedEndpointException;
import com.yahoo.vespa.http.client.Result;
import com.yahoo.vespa.http.client.core.OperationProcessorTester;
import com.yahoo.vespa.http.client.core.ServerResponseException;
import org.junit.Test;
import java.io.IOException;
import java.time.Duration;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotSame;
/**
* TODO: Migrate IOThreadTests here.
*
* @author bratseth
*/
public class IOThreadTest {
@Test
public void testSuccessfulWriting() {
OperationProcessorTester tester = new OperationProcessorTester();
assertEquals(0, tester.incomplete());
assertEquals(0, tester.success());
assertEquals(0, tester.failures());
tester.send("doc1");
tester.send("doc2");
tester.send("doc3");
assertEquals(3, tester.incomplete());
assertEquals(0, tester.success());
assertEquals(0, tester.failures());
tester.tick(1); // connect
assertEquals(3, tester.incomplete());
tester.tick(1); // sync
assertEquals(3, tester.incomplete());
tester.tick(1); // process queue
assertEquals(0, tester.incomplete());
assertEquals(3, tester.success());
assertEquals(0, tester.failures());
}
@Test
public void testExceptionOnConnect() {
OperationProcessorTester tester = new OperationProcessorTester();
IOThread ioThread = tester.getSingleIOThread();
DryRunGatewayConnection firstConnection = (DryRunGatewayConnection)ioThread.currentConnection();
firstConnection.throwOnHandshake(new ServerResponseException(403, "Not authorized"));
tester.send("doc1");
tester.tick(3);
assertEquals(1, tester.incomplete());
assertEquals(0, ioThread.resultQueue().getPendingSize());
assertEquals(0, tester.success());
assertEquals("Awaiting retry", 0, tester.failures());
}
@Test
public void testExceptionOnHandshake() {
OperationProcessorTester tester = new OperationProcessorTester();
IOThread ioThread = tester.getSingleIOThread();
DryRunGatewayConnection firstConnection = (DryRunGatewayConnection)ioThread.currentConnection();
firstConnection.throwOnHandshake(new ServerResponseException(403, "Not authorized"));
tester.send("doc1");
tester.tick(3);
assertEquals(1, tester.incomplete());
assertEquals(0, ioThread.resultQueue().getPendingSize());
assertEquals(0, tester.success());
assertEquals("Awaiting retry", 0, tester.failures());
}
@Test
public void testExceptionOnWrite() {
OperationProcessorTester tester = new OperationProcessorTester();
IOThread ioThread = tester.getSingleIOThread();
DryRunGatewayConnection firstConnection = (DryRunGatewayConnection)ioThread.currentConnection();
firstConnection.throwOnWrite(new IOException("Test failure"));
tester.send("doc1");
tester.tick(3);
assertEquals(1, tester.incomplete());
assertEquals(0, ioThread.resultQueue().getPendingSize());
assertEquals(0, tester.success());
assertEquals("Awaiting retry since write exceptions is a transient failure",
0, tester.failures());
}
@Test
public void testPollingOldConnections() {
OperationProcessorTester tester = new OperationProcessorTester();
tester.tick(3);
IOThread ioThread = tester.getSingleIOThread();
DryRunGatewayConnection firstConnection = (DryRunGatewayConnection)ioThread.currentConnection();
assertEquals(0, ioThread.oldConnections().size());
firstConnection.hold(true);
tester.send("doc1");
tester.tick(1);
tester.clock().advance(Duration.ofSeconds(16)); // Default connection ttl is 15
tester.tick(3);
assertEquals(1, ioThread.oldConnections().size());
assertEquals(firstConnection, ioThread.oldConnections().get(0));
assertNotSame(firstConnection, ioThread.currentConnection());
assertEquals(16, firstConnection.lastPollTime().toEpochMilli() / 1000);
// Check old connection poll pattern (exponential backoff)
assertLastPollTimeWhenAdvancing(16, 1, firstConnection, tester);
assertLastPollTimeWhenAdvancing(18, 1, firstConnection, tester);
assertLastPollTimeWhenAdvancing(18, 1, firstConnection, tester);
assertLastPollTimeWhenAdvancing(18, 1, firstConnection, tester);
assertLastPollTimeWhenAdvancing(18, 1, firstConnection, tester);
assertLastPollTimeWhenAdvancing(22, 1, firstConnection, tester);
assertLastPollTimeWhenAdvancing(22, 1, firstConnection, tester);
assertLastPollTimeWhenAdvancing(22, 1, firstConnection, tester);
assertLastPollTimeWhenAdvancing(22, 1, firstConnection, tester);
assertLastPollTimeWhenAdvancing(22, 1, firstConnection, tester);
assertLastPollTimeWhenAdvancing(22, 1, firstConnection, tester);
assertLastPollTimeWhenAdvancing(22, 1, firstConnection, tester);
assertLastPollTimeWhenAdvancing(22, 1, firstConnection, tester);
assertLastPollTimeWhenAdvancing(30, 1, firstConnection, tester);
assertLastPollTimeWhenAdvancing(30, 1, firstConnection, tester);
assertLastPollTimeWhenAdvancing(30, 1, firstConnection, tester);
assertLastPollTimeWhenAdvancing(30, 1, firstConnection, tester);
assertLastPollTimeWhenAdvancing(30, 1, firstConnection, tester);
assertLastPollTimeWhenAdvancing(30, 1, firstConnection, tester);
assertLastPollTimeWhenAdvancing(30, 1, firstConnection, tester);
assertLastPollTimeWhenAdvancing(30, 1, firstConnection, tester);
tester.clock().advance(Duration.ofSeconds(200));
tester.tick(1);
assertEquals("Old connection is eventually removed", 0, ioThread.oldConnections().size());
}
private void assertLastPollTimeWhenAdvancing(int lastPollTimeSeconds,
int advanceSeconds,
DryRunGatewayConnection connection,
OperationProcessorTester tester) {
tester.clock().advance(Duration.ofSeconds(advanceSeconds));
tester.tick(1);
assertEquals(lastPollTimeSeconds, connection.lastPollTime().toEpochMilli() / 1000);
}
}
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