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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.jrt;
import org.junit.After;
import org.junit.Before;
import java.time.Duration;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
public class DetachTest {
Test.Orb server;
Acceptor acceptor;
Test.Orb client;
Target target;
Test.Receptor receptor;
Test.Barrier barrier;
@Before
public void setUp() throws ListenFailedException {
server = new Test.Orb(new Transport());
client = new Test.Orb(new Transport());
acceptor = server.listen(new Spec(0));
target = client.connect(new Spec("localhost", acceptor.port()));
server.addMethod(new Method("d_inc", "i", "i", this::rpc_detach_inc));
server.addMethod(new Method("d_inc_r", "i", "i", this::rpc_detach_inc_return));
server.addMethod(new Method("inc_b", "i", "i", this::rpc_inc_barrier));
receptor = new Test.Receptor();
barrier = new Test.Barrier();
}
@After
public void tearDown() {
target.close();
acceptor.shutdown().join();
client.transport().shutdown().join();
server.transport().shutdown().join();
}
Request detached = null;
private void rpc_detach_inc(Request req) {
req.detach();
int value = req.parameters().get(0).asInt32();
req.returnValues().add(new Int32Value(value + 1));
detached = req;
}
private void rpc_detach_inc_return(Request req) {
req.detach();
int value = req.parameters().get(0).asInt32();
req.returnValues().add(new Int32Value(value + 1));
req.returnRequest();
}
private void rpc_inc_barrier(Request req) {
int value = req.parameters().get(0).asInt32();
req.returnValues().add(new Int32Value(value + 1));
receptor.put(req);
barrier.waitFor();
}
@org.junit.Test
public void testDetach() {
Test.Waiter w1 = new Test.Waiter();
Request req1 = new Request("d_inc");
req1.parameters().add(new Int32Value(50));
target.invokeAsync(req1, Duration.ofSeconds(5), w1);
Request req2 = new Request("d_inc_r");
req2.parameters().add(new Int32Value(60));
target.invokeSync(req2, Duration.ofSeconds(5));
assertTrue(!req2.isError());
assertEquals(1, req2.returnValues().size());
assertEquals(61, req2.returnValues().get(0).asInt32());
assertTrue(detached != null);
assertTrue(!w1.isDone());
assertTrue(server.checkReadCounts(2, 0, 0));
assertTrue(server.checkWriteCounts(0, 1, 0));
assertTrue(client.checkReadCounts(0, 1, 0));
assertTrue(client.checkWriteCounts(2, 0, 0));
assertTrue(server.readBytes == client.writeBytes);
assertTrue(client.readBytes == server.writeBytes);
detached.returnRequest();
try {
detached.returnRequest();
assertTrue(false);
} catch (IllegalStateException e) {}
detached = null;
w1.waitDone();
assertTrue(!req1.isError());
assertEquals(1, req1.returnValues().size());
assertEquals(51, req1.returnValues().get(0).asInt32());
assertTrue(server.checkReadCounts(2, 0, 0));
assertTrue(server.checkWriteCounts(0, 2, 0));
assertTrue(client.checkReadCounts(0, 2, 0));
assertTrue(client.checkWriteCounts(2, 0, 0));
assertTrue(server.readBytes == client.writeBytes);
assertTrue(client.readBytes == server.writeBytes);
}
@org.junit.Test
public void testBogusDetach() {
Request req1 = new Request("inc_b");
req1.parameters().add(new Int32Value(200));
try {
req1.detach();
assertTrue(false);
} catch (IllegalStateException e) {}
Request req2 = new Request("inc_b");
req2.parameters().add(new Int32Value(200));
try {
req2.returnRequest();
assertTrue(false);
} catch (IllegalStateException e) {}
Test.Waiter w = new Test.Waiter();
Request req3 = new Request("inc_b");
req3.parameters().add(new Int32Value(100));
target.invokeAsync(req3, Duration.ofSeconds(5), w);
Request blocked = (Request) receptor.get();
try {
blocked.returnRequest();
assertTrue(false);
} catch (IllegalStateException e) {}
barrier.breakIt();
w.waitDone();
assertTrue(!req3.isError());
assertEquals(1, req3.returnValues().size());
assertEquals(101, req3.returnValues().get(0).asInt32());
}
}
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