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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 BackTargetTest {
Supervisor server;
Acceptor acceptor;
Supervisor client;
Target target;
int serverValue;
int clientValue;
Target serverBackTarget;
Target clientBackTarget;
@Before
public void setUp() throws ListenFailedException {
server = new Supervisor(new Transport());
client = new Supervisor(new Transport());
acceptor = server.listen(new Spec(0));
target = client.connect(new Spec("localhost", acceptor.port()));
server.addMethod(new Method("inc", "", "", this::server_inc));
server.addMethod(new Method("sample_target", "", "", this::server_sample_target));
server.addMethod(new Method("back_inc", "", "", this::back_inc));
client.addMethod(new Method("inc", "", "", this::client_inc));
client.addMethod(new Method("sample_target", "", "", this::client_sample_target));
client.addMethod(new Method("back_inc", "", "", this::back_inc));
serverValue = 0;
clientValue = 0;
serverBackTarget = null;
clientBackTarget = null;
}
@After
public void tearDown() {
target.close();
acceptor.shutdown().join();
client.transport().shutdown().join();
server.transport().shutdown().join();
}
private void server_inc(Request req) {
serverValue++;
}
private void server_sample_target(Request req) {
serverBackTarget = req.target();
}
private void client_inc(Request req) {
clientValue++;
}
private void client_sample_target(Request req) {
clientBackTarget = req.target();
}
private void back_inc(Request req) {
Target t = req.target();
t.invokeVoid(new Request("inc"));
}
private void checkValues(int server, int client) {
assertEquals(server, serverValue);
assertEquals(client, clientValue);
}
private void checkTargets(boolean server, boolean client) {
assertTrue(server == (serverBackTarget != null));
assertTrue(client == (clientBackTarget != null));
}
@org.junit.Test
public void testBackTarget() {
checkTargets(false, false);
target.invokeSync(new Request("sample_target"), Duration.ofSeconds(5));
checkTargets(true, false);
serverBackTarget.invokeSync(new Request("sample_target"), Duration.ofSeconds(5));
checkTargets(true, true);
checkValues(0, 0);
target.invokeSync(new Request("inc"), Duration.ofSeconds(5));
checkValues(1, 0);
serverBackTarget.invokeSync(new Request("inc"), Duration.ofSeconds(5));
checkValues(1, 1);
clientBackTarget.invokeSync(new Request("inc"), Duration.ofSeconds(5));
checkValues(2, 1);
target.invokeSync(new Request("back_inc"), Duration.ofSeconds(5));
checkValues(2, 2);
serverBackTarget.invokeSync(new Request("back_inc"), Duration.ofSeconds(5));
checkValues(3, 2);
clientBackTarget.invokeSync(new Request("back_inc"), Duration.ofSeconds(5));
checkValues(3, 3);
}
@org.junit.Test
public void testBogusBackTarget() {
Request req = new Request("inc");
try {
req.target();
assertTrue(false);
} catch (IllegalStateException e) {}
}
}
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