/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.coyote.http2;
import org.junit.Assert;
import org.junit.Test;
/*
* This tests use A=1, B=2, etc to map stream IDs to the names used in the
* figures.
*/
public class TestAbstractStream {
@Test
public void testDependenciesFig3() {
// Setup
Http2UpgradeHandler handler = new Http2UpgradeHandler(null, null);
Stream a = new Stream(Integer.valueOf(1), handler);
Stream b = new Stream(Integer.valueOf(2), handler);
Stream c = new Stream(Integer.valueOf(3), handler);
Stream d = new Stream(Integer.valueOf(4), handler);
b.rePrioritise(a, false, 16);
c.rePrioritise(a, false, 16);
// Action
d.rePrioritise(a, false, 16);
// Check parents
Assert.assertEquals(handler, a.getParentStream());
Assert.assertEquals(a, b.getParentStream());
Assert.assertEquals(a, c.getParentStream());
Assert.assertEquals(a, d.getParentStream());
// Check children
Assert.assertEquals(3, a.getChildStreams().size());
Assert.assertTrue(a.getChildStreams().contains(b));
Assert.assertTrue(a.getChildStreams().contains(c));
Assert.assertTrue(a.getChildStreams().contains(d));
Assert.assertEquals(0, b.getChildStreams().size());
Assert.assertEquals(0, c.getChildStreams().size());
Assert.assertEquals(0, d.getChildStreams().size());
}
@Test
public void testDependenciesFig4() {
// Setup
Http2UpgradeHandler handler = new Http2UpgradeHandler(null, null);
Stream a = new Stream(Integer.valueOf(1), handler);
Stream b = new Stream(Integer.valueOf(2), handler);
Stream c = new Stream(Integer.valueOf(3), handler);
Stream d = new Stream(Integer.valueOf(4), handler);
b.rePrioritise(a, false, 16);
c.rePrioritise(a, false, 16);
// Action
d.rePrioritise(a, true, 16);
// Check parents
Assert.assertEquals(handler, a.getParentStream());
Assert.assertEquals(d, b.getParentStream());
Assert.assertEquals(d, c.getParentStream());
Assert.assertEquals(a, d.getParentStream());
// Check children
Assert.assertEquals(1, a.getChildStreams().size());
Assert.assertTrue(a.getChildStreams().contains(d));
Assert.assertEquals(2, d.getChildStreams().size());
Assert.assertTrue(d.getChildStreams().contains(b));
Assert.assertTrue(d.getChildStreams().contains(c));
Assert.assertEquals(0, b.getChildStreams().size());
Assert.assertEquals(0, c.getChildStreams().size());
}
@Test
public void testDependenciesFig5NonExclusive() {
// Setup
Http2UpgradeHandler handler = new Http2UpgradeHandler(null, null);
Stream a = new Stream(Integer.valueOf(1), handler);
Stream b = new Stream(Integer.valueOf(2), handler);
Stream c = new Stream(Integer.valueOf(3), handler);
Stream d = new Stream(Integer.valueOf(4), handler);
Stream e = new Stream(Integer.valueOf(5), handler);
Stream f = new Stream(Integer.valueOf(6), handler);
b.rePrioritise(a, false, 16);
c.rePrioritise(a, false, 16);
d.rePrioritise(c, false, 16);
e.rePrioritise(c, false, 16);
f.rePrioritise(d, false, 16);
// Action
a.rePrioritise(d, false, 16);
// Check parents
Assert.assertEquals(handler, d.getParentStream());
Assert.assertEquals(d, f.getParentStream());
Assert.assertEquals(d, a.getParentStream());
Assert.assertEquals(a, b.getParentStream());
Assert.assertEquals(a, c.getParentStream());
Assert.assertEquals(c, e.getParentStream());
// Check children
Assert.assertEquals(2, d.getChildStreams().size());
Assert.assertTrue(d.getChildStreams().contains(a));
Assert.assertTrue(d.getChildStreams().contains(f));
Assert.assertEquals(0, f.getChildStreams().size());
Assert.assertEquals(2, a.getChildStreams().size());
Assert.assertTrue(a.getChildStreams().contains(b));
Assert.assertTrue(a.getChildStreams().contains(c));
Assert.assertEquals(0, b.getChildStreams().size());
Assert.assertEquals(1, c.getChildStreams().size());
Assert.assertTrue(c.getChildStreams().contains(e));
Assert.assertEquals(0, e.getChildStreams().size());
}
@Test
public void testDependenciesFig5Exclusive() {
// Setup
Http2UpgradeHandler handler = new Http2UpgradeHandler(null, null);
Stream a = new Stream(Integer.valueOf(1), handler);
Stream b = new Stream(Integer.valueOf(2), handler);
Stream c = new Stream(Integer.valueOf(3), handler);
Stream d = new Stream(Integer.valueOf(4), handler);
Stream e = new Stream(Integer.valueOf(5), handler);
Stream f = new Stream(Integer.valueOf(6), handler);
b.rePrioritise(a, false, 16);
c.rePrioritise(a, false, 16);
d.rePrioritise(c, false, 16);
e.rePrioritise(c, false, 16);
f.rePrioritise(d, false, 16);
// Action
a.rePrioritise(d, true, 16);
// Check parents
Assert.assertEquals(handler, d.getParentStream());
Assert.assertEquals(d, a.getParentStream());
Assert.assertEquals(a, b.getParentStream());
Assert.assertEquals(a, c.getParentStream());
Assert.assertEquals(a, f.getParentStream());
Assert.assertEquals(c, e.getParentStream());
// Check children
Assert.assertEquals(1, d.getChildStreams().size());
Assert.assertTrue(d.getChildStreams().contains(a));
Assert.assertEquals(3, a.getChildStreams().size());
Assert.assertTrue(a.getChildStreams().contains(b));
Assert.assertTrue(a.getChildStreams().contains(c));
Assert.assertTrue(a.getChildStreams().contains(f));
Assert.assertEquals(0, b.getChildStreams().size());
Assert.assertEquals(0, f.getChildStreams().size());
Assert.assertEquals(1, c.getChildStreams().size());
Assert.assertTrue(c.getChildStreams().contains(e));
Assert.assertEquals(0, e.getChildStreams().size());
}
@Test
public void testCircular01() {
// Setup
Http2UpgradeHandler handler = new Http2UpgradeHandler(null, null);
Stream a = new Stream(Integer.valueOf(1), handler);
Stream b = new Stream(Integer.valueOf(2), handler);
Stream c = new Stream(Integer.valueOf(3), handler);
b.rePrioritise(a, false, 16);
c.rePrioritise(b, false, 16);
// Action
a.rePrioritise(c, false, 16);
// Check parents
Assert.assertEquals(c, a.getParentStream());
Assert.assertEquals(a, b.getParentStream());
Assert.assertEquals(handler, c.getParentStream());
// Check children
Assert.assertEquals(1, handler.getChildStreams().size());
Assert.assertTrue(handler.getChildStreams().contains(c));
Assert.assertEquals(1, a.getChildStreams().size());
Assert.assertTrue(a.getChildStreams().contains(b));
Assert.assertEquals(0, b.getChildStreams().size());
Assert.assertEquals(1, c.getChildStreams().size());
Assert.assertTrue(c.getChildStreams().contains(a));
}
@Test
public void testCircular02() {
// Setup
Http2UpgradeHandler handler = new Http2UpgradeHandler(null, null);
Stream a = new Stream(Integer.valueOf(1), handler);
Stream b = new Stream(Integer.valueOf(2), handler);
Stream c = new Stream(Integer.valueOf(3), handler);
Stream d = new Stream(Integer.valueOf(4), handler);
Stream e = new Stream(Integer.valueOf(5), handler);
Stream f = new Stream(Integer.valueOf(6), handler);
b.rePrioritise(a, false, 16);
c.rePrioritise(b, false, 16);
e.rePrioritise(d, false, 16);
f.rePrioritise(e, false, 16);
// Action
a.rePrioritise(f, false, 16);
d.rePrioritise(c, false, 16);
// Check parents
Assert.assertEquals(f, a.getParentStream());
Assert.assertEquals(a, b.getParentStream());
Assert.assertEquals(handler, c.getParentStream());
Assert.assertEquals(c, d.getParentStream());
Assert.assertEquals(d, e.getParentStream());
Assert.assertEquals(e, f.getParentStream());
// Check children
Assert.assertEquals(1, handler.getChildStreams().size());
Assert.assertTrue(handler.getChildStreams().contains(c));
Assert.assertEquals(1, a.getChildStreams().size());
Assert.assertTrue(a.getChildStreams().contains(b));
Assert.assertEquals(0, b.getChildStreams().size());
Assert.assertEquals(1, c.getChildStreams().size());
Assert.assertTrue(c.getChildStreams().contains(d));
Assert.assertEquals(1, d.getChildStreams().size());
Assert.assertTrue(d.getChildStreams().contains(e));
Assert.assertEquals(1, e.getChildStreams().size());
Assert.assertTrue(e.getChildStreams().contains(f));
Assert.assertEquals(1, f.getChildStreams().size());
Assert.assertTrue(f.getChildStreams().contains(a));
}
}