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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 java.util.ArrayList;
import java.util.Comparator;
import java.util.List;
import com.yahoo.jrt.slobrok.api.SlobrokList;
import com.yahoo.jrt.slobrok.api.Mirror;
import com.yahoo.jrt.slobrok.api.Register;
import com.yahoo.jrt.slobrok.api.Mirror.Entry;
import com.yahoo.jrt.slobrok.server.Slobrok;
import org.junit.After;
import org.junit.Before;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotEquals;
import static org.junit.Assert.assertTrue;
public class SlobrokTest {
private static class SpecList extends ArrayList<Mirror.Entry> {
public SpecList add(String name, String spec) {
add(new Mirror.Entry(name, spec));
return this;
}
}
String[] slobroks;
boolean error = false;
Supervisor server = new Supervisor(new Transport());
Supervisor client = new Supervisor(new Transport());
Acceptor acceptor = null;
Mirror mirror = null;
Register register = null;
String mySpec = null;
Slobrok slobrok;
@Before
public void setUp() throws ListenFailedException {
slobrok = new Slobrok();
slobroks = new String[1];
slobroks[0] = new Spec("localhost", slobrok.port()).toString();
SlobrokList slobroklist = new SlobrokList();
slobroklist.setup(slobroks);
acceptor = server.listen(new Spec(0));
mirror = new Mirror(client, slobroklist);
register = new Register(server, slobroklist,
"localhost", acceptor.port());
mySpec = new Spec("localhost", acceptor.port()).toString();
}
@After
public void tearDown() {
register.shutdown();
mirror.shutdown();
acceptor.shutdown();
client.transport().shutdown();
server.transport().shutdown();
slobrok.stop();
}
void check(String pattern, ArrayList<Entry> result) {
if (error) {
err("already failed, skipping test");
return;
}
Comparator<Entry> cmp = new Comparator<Entry>() {
public int compare(Entry a, Entry b) {
return a.compareTo(b);
}
};
List<Entry> expect = result;
expect.sort(cmp);
List<Entry> actual = new ArrayList<>();
for (int i = 0; i < 1000; i++) {
actual = mirror.lookup(pattern);
actual.sort(cmp);
if (actual.equals(expect)) {
// err("lookup successful for pattern: " + pattern);
return;
}
try { Thread.sleep(10); } catch (InterruptedException e) {}
}
error = true;
err("lookup failed for pattern: " + pattern);
err("actual values:");
if (actual.isEmpty()) {
err(" { EMPTY }");
}
for (Entry e : actual) {
err(" {" + e.getName() + ", " + e.getSpecString() + "}");
}
err("expected values:");
if (expect.isEmpty()) {
err(" { EMPTY }");
}
for (Entry e : expect) {
err(" {" + e.getName() + ", " + e.getSpecString() + "}");
}
}
@org.junit.Test
public void testSlobrok() {
String wantName = "A/x/w";
register.registerName(wantName);
check(wantName, new SpecList().add(wantName, mySpec));
check("*/*", new SpecList());
check("*/*/*", new SpecList().add(wantName, mySpec));
assertTrue(mirror.ready());
assertTrue(mirror.updates() > 0);
mirror.dumpState();
List<Entry> oneArr = mirror.lookup("*/*/*");
mirror.dumpState();
assertEquals(1, oneArr.size());
Mirror.Entry one = oneArr.get(0);
assertEquals(one, new Entry(wantName, mySpec));
assertNotEquals(one, new Entry("B/x/w", mySpec));
assertNotEquals(one, new Entry(wantName, "foo:99"));
assertNotEquals(one, null);
assertNotEquals(one, register);
assertEquals(one.getName(), wantName);
assertEquals(one.getSpecString(), mySpec);
register.registerName("B/x");
check("B/x", new SpecList().add("B/x", mySpec));
check("*/*", new SpecList().add("B/x", mySpec));
check("*/*/*", new SpecList().add("A/x/w", mySpec));
register.registerName("C/x/z");
check("C/x/z", new SpecList().add("C/x/z", mySpec));
check("*/*", new SpecList().add("B/x", mySpec));
check("*/*/*", new SpecList()
.add("A/x/w", mySpec)
.add("C/x/z", mySpec));
register.registerName("D/y/z");
check("D/y/z", new SpecList().add("D/y/z", mySpec));
check("*/*", new SpecList().add("B/x", mySpec));
check("*/*/*", new SpecList()
.add("A/x/w", mySpec)
.add("C/x/z", mySpec)
.add("D/y/z", mySpec));
register.registerName("E/y");
check("E/y", new SpecList().add("E/y", mySpec));
check("*/*", new SpecList()
.add("B/x", mySpec)
.add("E/y", mySpec));
check("*/*/*", new SpecList()
.add("A/x/w", mySpec)
.add("C/x/z", mySpec)
.add("D/y/z", mySpec));
register.registerName("F/y/w");
check("F/y/w", new SpecList().add("F/y/w", mySpec));
check("*/*", new SpecList()
.add("B/x", mySpec)
.add("E/y", mySpec));
check("*/*/*", new SpecList()
.add("A/x/w", mySpec)
.add("C/x/z", mySpec)
.add("D/y/z", mySpec)
.add("F/y/w", mySpec));
check("*", new SpecList());
check("B/*", new SpecList()
.add("B/x", mySpec));
check("*/y", new SpecList()
.add("E/y", mySpec));
check("*/x/*", new SpecList()
.add("A/x/w", mySpec)
.add("C/x/z", mySpec));
check("*/*/z", new SpecList()
.add("C/x/z", mySpec)
.add("D/y/z", mySpec));
check("A/*/z", new SpecList());
check("A/*/w", new SpecList()
.add("A/x/w", mySpec));
register.unregisterName("E/y");
register.unregisterName("C/x/z");
register.unregisterName("F/y/w");
check("*/*", new SpecList()
.add("B/x", mySpec));
check("*/*/*", new SpecList()
.add("A/x/w", mySpec)
.add("D/y/z", mySpec));
register.registerName("E/y");
register.registerName("C/x/z");
register.registerName("F/y/w");
check("*/*", new SpecList()
.add("B/x", mySpec)
.add("E/y", mySpec));
check("*/*/*", new SpecList()
.add("A/x/w", mySpec)
.add("C/x/z", mySpec)
.add("D/y/z", mySpec)
.add("F/y/w", mySpec));
register.unregisterName("E/y");
register.unregisterName("C/x/z");
register.unregisterName("F/y/w");
check("*/*", new SpecList()
.add("B/x", mySpec));
check("*/*/*", new SpecList()
.add("A/x/w", mySpec)
.add("D/y/z", mySpec));
register.registerName("E/y");
register.registerName("C/x/z");
register.registerName("F/y/w");
check("*/*", new SpecList()
.add("B/x", mySpec)
.add("E/y", mySpec));
check("*/*/*", new SpecList()
.add("A/x/w", mySpec)
.add("C/x/z", mySpec)
.add("D/y/z", mySpec)
.add("F/y/w", mySpec));
assertFalse(error);
}
public static void err(String msg) {
System.err.println(msg);
}
}
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