From 19b3abbef47ccc08665af54dc8afcef2e49027a5 Mon Sep 17 00:00:00 2001
From: Håvard Pettersen <havardpe@gmail.com>
Date: Mon, 25 Feb 2019 15:35:20 +0100
Subject: async tls handshake in jrt

---
 jrt/tests/com/yahoo/jrt/LatencyTest.java | 84 ++++++++++++++++++++++++++++++++
 1 file changed, 84 insertions(+)
 create mode 100644 jrt/tests/com/yahoo/jrt/LatencyTest.java

(limited to 'jrt/tests')

diff --git a/jrt/tests/com/yahoo/jrt/LatencyTest.java b/jrt/tests/com/yahoo/jrt/LatencyTest.java
new file mode 100644
index 00000000000..a1f71bda013
--- /dev/null
+++ b/jrt/tests/com/yahoo/jrt/LatencyTest.java
@@ -0,0 +1,84 @@
+// Copyright 2019 Oath Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+
+package com.yahoo.jrt;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.logging.Logger;
+
+import static com.yahoo.jrt.CryptoUtils.createTestTlsContext;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+public class LatencyTest {
+    private static final Logger log = Logger.getLogger(LatencyTest.class.getName());
+
+    private static class Server implements AutoCloseable {
+        private Supervisor orb;
+        private Acceptor acceptor;
+        public Server(CryptoEngine crypto) throws ListenFailedException {
+            orb = new Supervisor(new Transport(crypto));
+            acceptor = orb.listen(new Spec(0));
+            orb.addMethod(new Method("inc", "i", "i", this, "rpc_inc"));
+        }
+        public Target connect() {
+            return orb.connect(new Spec("localhost", acceptor.port()));
+        }
+        public void rpc_inc(Request req) {
+            req.returnValues().add(new Int32Value(req.parameters().get(0).asInt32() + 1));
+        }
+        public void close() {
+            acceptor.shutdown().join();
+            orb.transport().shutdown().join();
+        }
+    }
+
+    private void measureLatency(String prefix, Server server, boolean reconnect) {
+        int value = 100;
+        List<Double> list = new ArrayList<>();
+        Target target = server.connect();
+        for (int i = 0; i < 64; ++i) {
+            long before = System.nanoTime();
+            if (reconnect) {
+                target.close();
+                target = server.connect();
+            }
+            Request req = new Request("inc");
+            req.parameters().add(new Int32Value(value));
+            target.invokeSync(req, 60.0);
+            assertTrue(req.checkReturnTypes("i"));
+            assertEquals(value + 1, req.returnValues().get(0).asInt32());
+            value++;
+            long duration = System.nanoTime() - before;
+            list.add(duration / 1000000.0);
+        }
+        target.close();
+        Collections.sort(list);
+        log.info(prefix + "invocation latency: " + list.get(list.size() / 2) + " ms");
+    }
+
+    @org.junit.Test
+    public void testNullCryptoLatency() throws ListenFailedException {
+        try (Server server = new Server(new NullCryptoEngine())) {
+            measureLatency("[null crypto, no reconnect] ", server, false);
+            measureLatency("[null crypto, reconnect] ", server, true);
+        }
+    }
+
+    @org.junit.Test
+    public void testXorCryptoLatency() throws ListenFailedException {
+        try (Server server = new Server(new XorCryptoEngine())) {
+            measureLatency("[xor crypto, no reconnect] ", server, false);
+            measureLatency("[xor crypto, reconnect] ", server, true);
+        }
+    }
+
+    @org.junit.Test
+    public void testTlsCryptoLatency() throws ListenFailedException {
+        try (Server server = new Server(new TlsCryptoEngine(createTestTlsContext()))) {
+            measureLatency("[tls crypto, no reconnect] ", server, false);
+            measureLatency("[tls crypto, reconnect] ", server, true);
+        }
+    }
+}
-- 
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