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// Copyright Yahoo. 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.assertFalse;
import static org.junit.Assert.assertTrue;
public class InvokeErrorTest {
final Duration timeout = Duration.ofSeconds(60);
Supervisor server;
Acceptor acceptor;
Supervisor client;
Target target;
Test.Barrier barrier;
SimpleRequestAccessFilter filter;
RpcTestMethod testMethod;
@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()));
filter = new SimpleRequestAccessFilter();
testMethod = new RpcTestMethod();
server.addMethod(new Method("test", "iib", "i", testMethod).requestAccessFilter(filter));
server.addMethod(new Method("test_barrier", "iib", "i", this::rpc_test_barrier));
barrier = new Test.Barrier();
}
@After
public void tearDown() {
target.close();
acceptor.shutdown().join();
client.transport().shutdown().join();
server.transport().shutdown().join();
}
private void rpc_test_barrier(Request req) {
testMethod.invoke(req);
barrier.waitFor();
}
@org.junit.Test
public void testNoError() {
Request req1 = new Request("test");
req1.parameters().add(new Int32Value(42));
req1.parameters().add(new Int32Value(0));
req1.parameters().add(new Int8Value((byte)0));
target.invokeSync(req1, timeout);
assertTrue(!req1.isError());
assertEquals(1, req1.returnValues().size());
assertEquals(42, req1.returnValues().get(0).asInt32());
}
@org.junit.Test
public void testNoSuchMethod() {
Request req1 = new Request("bogus");
target.invokeSync(req1, timeout);
assertTrue(req1.isError());
assertEquals(0, req1.returnValues().size());
assertEquals(ErrorCode.NO_SUCH_METHOD, req1.errorCode());
}
@org.junit.Test
public void testWrongParameters() {
Request req1 = new Request("test");
req1.parameters().add(new Int32Value(42));
req1.parameters().add(new Int32Value(0));
req1.parameters().add(new Int32Value(0));
target.invokeSync(req1, timeout);
assertTrue(req1.isError());
assertEquals(0, req1.returnValues().size());
assertEquals(ErrorCode.WRONG_PARAMS, req1.errorCode());
Request req2 = new Request("test");
req2.parameters().add(new Int32Value(42));
req2.parameters().add(new Int32Value(0));
target.invokeSync(req2, timeout);
assertTrue(req2.isError());
assertEquals(0, req2.returnValues().size());
assertEquals(ErrorCode.WRONG_PARAMS, req2.errorCode());
Request req3 = new Request("test");
req3.parameters().add(new Int32Value(42));
req3.parameters().add(new Int32Value(0));
req3.parameters().add(new Int8Value((byte)0));
req3.parameters().add(new Int8Value((byte)0));
target.invokeSync(req3, timeout);
assertTrue(req3.isError());
assertEquals(0, req3.returnValues().size());
assertEquals(ErrorCode.WRONG_PARAMS, req3.errorCode());
}
@org.junit.Test
public void testWrongReturnValues() {
Request req1 = new Request("test");
req1.parameters().add(new Int32Value(42));
req1.parameters().add(new Int32Value(0));
req1.parameters().add(new Int8Value((byte)1));
target.invokeSync(req1, timeout);
assertTrue(req1.isError());
assertEquals(0, req1.returnValues().size());
assertEquals(ErrorCode.WRONG_RETURN, req1.errorCode());
}
@org.junit.Test
public void testMethodFailed() {
Request req1 = new Request("test");
req1.parameters().add(new Int32Value(42));
req1.parameters().add(new Int32Value(75000));
req1.parameters().add(new Int8Value((byte)0));
target.invokeSync(req1, timeout);
assertTrue(req1.isError());
assertEquals(0, req1.returnValues().size());
assertEquals(75000, req1.errorCode());
Request req2 = new Request("test");
req2.parameters().add(new Int32Value(42));
req2.parameters().add(new Int32Value(75000));
req2.parameters().add(new Int8Value((byte)1));
target.invokeSync(req2, timeout);
assertTrue(req2.isError());
assertEquals(0, req2.returnValues().size());
assertEquals(75000, req2.errorCode());
}
@org.junit.Test
public void testConnectionError() {
Test.Waiter w = new Test.Waiter();
Request req1 = new Request("test_barrier");
req1.parameters().add(new Int32Value(42));
req1.parameters().add(new Int32Value(0));
req1.parameters().add(new Int8Value((byte)0));
target.invokeAsync(req1, timeout, w);
target.close();
client.transport().sync();
barrier.breakIt();
w.waitDone();
assertTrue(!target.isValid());
assertTrue(req1.isError());
assertEquals(0, req1.returnValues().size());
assertEquals(ErrorCode.CONNECTION, req1.errorCode());
}
@org.junit.Test
public void testFilterFailsRequest() {
Request r = new Request("test");
r.parameters().add(new Int32Value(42));
r.parameters().add(new Int32Value(0));
r.parameters().add(new Int8Value((byte)0));
filter.allowed = false;
assertFalse(filter.invoked);
target.invokeSync(r, timeout);
assertTrue(r.isError());
assertTrue(filter.invoked);
assertFalse(testMethod.invoked);
assertEquals(ErrorCode.PERMISSION_DENIED, r.errorCode());
assertEquals("Permission denied", r.errorMessage());
}
private static class RpcTestMethod implements MethodHandler {
boolean invoked = false;
@Override public void invoke(Request req) { invoked = true; rpc_test(req); }
void rpc_test(Request req) {
int value = req.parameters().get(0).asInt32();
int error = req.parameters().get(1).asInt32();
int extra = req.parameters().get(2).asInt8();
req.returnValues().add(new Int32Value(value));
if (extra != 0) {
req.returnValues().add(new Int32Value(value));
}
if (error != 0) {
req.setError(error, "Custom error");
}
}
}
}
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